CASTOR OIL 35 EO

CASTOR OIL 35 EO
Castor oil is a vegetable oil pressed from castor beans.[1] Castor oil is a colourless to very pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm3.[2] It is a triglyceride in which approximately 90 percent of fatty acid chains are ricinoleates. Oleate and linoleates are the other significant components.

Castor oil and its derivatives are used in the manufacturing of soaps, lubricants, hydraulic and brake fluids, paints, dyes, coatings, inks, cold resistant plastics, waxes and polishes, nylon, pharmaceuticals and perfumes.[3]

Etymology
The name probably comes from a confusion between the Ricinus plant that produces it and another plant, the Vitex agnus-castus.[4][5] However, an alternative etymology suggests that it was used as a replacement for castoreum.[6]

Composition

Structure of the major component of castor oil: triester of glycerol and ricinoleic acid
Castor oil is well known as a source of ricinoleic acid, a monounsaturated, 18-carbon fatty acid. Among fatty acids, ricinoleic acid is unusual in that it has a hydroxyl functional group on the 12th carbon. This functional group causes ricinoleic acid (and castor oil) to be more polar than most fats. The chemical reactivity of the alcohol group also allows chemical derivatization that is not possible with most other seed oils. Because of its ricinoleic acid content, castor oil is a valuable chemical in feedstocks, commanding a higher price than other seed oils. As an example, in July 2007, Indian castor oil sold for about US$0.90 per kilogram (US$0.41 per pound)[citation needed] whereas U.S. soybean, sunflower and canola oils sold for about US$0.30 per kilogram (US$0.14 per pound).[7]

Average composition of castor seed oil / fatty acid chains
Acid name    Average Percentage Range
Ricinoleic acid    85–95
Oleic acid    2–6
Linoleic acid    1–5
α-Linolenic acid    0.5–1
Stearic acid    0.5–1
Palmitic acid    0.5–1
Dihydroxystearic acid    0.3–0.5
Others    0.2–0.5
Uses
Annually 270,000–360,000 tonnes (600–800 million pounds) of castor oil are produced for a variety of uses.[3]

Food and preservative
In the food industry, castor oil (food grade) is used in food additives, flavorings, candy (e.g., polyglycerol polyricinoleate or PGPR in chocolate),[8] as a mold inhibitor, and in packaging. Polyoxyethylated castor oil (e.g., Kolliphor EL)[9] is also used in the food industries.[10]

In India, Pakistan and Nepal food grains are preserved by the application of castor oil. It stops rice, wheat, and pulses from rotting. For example, the legume pigeon pea is commonly available coated in oil for extended storage.

Traditional medicine

Advertisement of castor oil as a medicine by Scott & Bowne Company, 19th century
Use of castor oil as a laxative is attested to in the circa 1550 BC Ebers Papyrus,[11] and was in use several centuries earlier.[12] The United States Food and Drug Administration (FDA) has categorized castor oil as "generally recognized as safe and effective" (GRASE) for over-the-counter use as a laxative with its major site of action the small intestine, where it is digested into ricinoleic acid.[13]

Although used in traditional medicine to induce labor in pregnant women, there is insufficient evidence that castor oil is effective to dilate the cervix or induce labor.[14]

Castor oil, or a castor oil derivative such as Kolliphor EL (polyethoxylated castor oil, a nonionic surfactant), is an excipient added to prescription drugs, including:

Miconazole, an antifungal agent;[15][16]
Paclitaxel, a mitotic inhibitor used in cancer chemotherapy;[17]
Sandimmune (cyclosporine injection, USP), an immunosuppressant drug widely used in connection with organ transplant to reduce the activity of the patient's immune system;[18]
Nelfinavir mesylate, an HIV protease inhibitor;[19]
Tacrolimus, an immunosuppressive drug (contains HCO-60, polyoxyl 60 hydrogenated castor oil);[citation needed]
Xenaderm ointment, a topical treatment for skin ulcers, is a combination of Balsam of Peru, castor oil, and trypsin;[citation needed][20]
Aci-Jel (composed of ricinoleic acid from castor oil, with acetic acid and oxyquinoline), used to maintain the acidity of the vagina;[21]
Optive Plus (carboxymethylcellulose, castor oil) and Refresh Ultra (glycerine, castor oil), artificial tears to treat dry eye;[22]
Castor oil is also one of the components of Vishnevsky liniment.[23]

Alternative medicinal use
In naturopathy, castor oil is promoted as a treatment for several human health conditions,[24] including cysts. According to the American Cancer Society, "available scientific evidence does not support claims that castor oil on the skin cures cancer or any other disease."[25]

Skin and hair care
Castor oil has been used in cosmetic products included in creams and as a moisturizer. Small amounts of castor oil are frequently used in cold process soap to increase lathering in the finished bar. It also has been used to enhance hair conditioning in other products and for supposed anti-dandruff properties.[26]

Coatings
Castor oil is used as a bio-based polyol in the polyurethane industry. The average functionality (number of hydroxyl groups per triglyceride molecule) of castor oil is 2.7, so it is widely used as a rigid polyol and in coatings.[1] One particular use is in a polyurethane concrete where a castor-oil emulsion is reacted with an isocyanate (usually polymeric MDI Methylene diphenyl diisocyanate) and a Cement and Construction aggregate. This is applied fairly thickly as a slurry which is self-levelling. This base is usually further coated with other systems to build a resilient floor.[27]

It is not a drying oil, meaning that it has a low reactivity with air compared to oils such as linseed oil and tung oil. Dehydration of castor oil yields linoleic acids, which do have drying properties.[1] In this process, the OH group on the ricinoleic acid along with a hydrogen from the next carbon atom are removed yielding a double bond which then has oxidative cross-linking properties yielding the drying oil.

Precursor to industrial chemicals
Castor oil can be broken down into other chemical compounds that have numerous applications.[28][29][30] Transesterification followed by steam cracking gives undecylenic acid, a precursor to specialized polymer nylon 11, and heptanal, a component in fragrances.[31] Breakdown of castor oil in strong base gives 2-octanol, both a fragrance component and a specialized solvent, and the dicarboxylic acid sebacic acid. Hydrogenation of castor oil saturates the alkenes, giving a waxy lubricant.[1] Castor oil may be epoxidized by reacting the OH groups with Epichlorohydrin to make the triglycidyl ether of castor oil which is useful in epoxy technology.[32] This is available commercially as Heloxy.[33]

The production of lithium grease consumes a significant amount of castor oil. Hydrogenation and saponification of castor oil yields 12-hydroxystearic acid which is then reacted with lithium hydroxide or lithium carbonate to give high performance lubricant grease.[34]

Since it has a relatively high dielectric constant (4.7), highly refined and dried castor oil is sometimes used as a dielectric fluid within high performance high voltage capacitors.

Lubrication
Vegetable oils like castor oil are typically unattractive alternatives to petroleum-derived lubricants because of their poor oxidative stability.[35][36] Castor oil has better low-temperature viscosity properties and high-temperature lubrication than most vegetable oils, making it useful as a lubricant in jet, diesel, and racing engines.[37] The viscosity of castor oil at 10 °C is 2,420 centipoise.[38] However, castor oil tends to form gums in a short time, and therefore its usefulness is limited to engines that are regularly rebuilt, such as racing engines. The lubricant company Castrol took its name from castor oil.

Castor oil has been suggested as a lubricant for bicycle pumps because it does not degrade natural rubber seals.[39]

Early aviation and aeromodelling

World War I aviation rotary engines used castor oil as a primary lubricant, mixed with the fuel
Castor oil was the preferred lubricant for rotary engines, such as the Gnome engine after that engine's widespread adoption for aviation in Europe in 1909. It was used almost universally in rotary engined Allied aircraft in World War I. Germany had to make do with inferior ersatz oil for its rotary engines, which resulted in poor reliability.[40][41][42]

The methanol-fueled two-cycle glow plug engines used for aeromodelling, since their adoption by model airplane hobbyists in the 1940s, have used varying percentages of castor oil as a lubricant. It is highly resistant to degradation when the engine has its fuel-air mixture leaned for maximum engine speed. Gummy residues can still be a problem for aeromodelling powerplants lubricated with castor oil, however, usually requiring eventual replacement of ball bearings when the residue accumulates within the engine's bearing races. One British manufacturer of sleeve valved four-cycle model engines has stated the "varnish" created by using castor oil in small percentages can improve the pneumatic seal of the sleeve valve, improving such an engine's performance over time.

Turkey red oil
Turkey red oil, also called sulphonated (or sulfated) castor oil, is made by adding sulfuric acid to vegetable oils, most notably castor oil.[43] It was the first synthetic detergent after ordinary soap. It is used in formulating lubricants, softeners, and dyeing assistants.[43]

Biodiesel
Castor oil, like currently less expensive vegetable oils, can be used as feedstock in the production of biodiesel. The resulting fuel is superior for cold winters, because of its exceptionally low cloud and pour points.[44]

Initiatives to grow more castor for energy production, in preference to other oil crops, are motivated by social considerations. Tropical subsistence farmers would gain a cash crop.[45]

Punishment
Some parents punished children with a dose of castor oil.[46][47] Physicians recommended against the practice because they did not want medicines associated with punishment.[48]

A heavy dose of castor oil could be used as a humiliating punishment for adults. Colonial officials used it in the British Raj (India) to deal with recalcitrant servants.[49] Belgian military officials prescribed heavy doses of castor oil in Belgian Congo as a punishment for being too sick to work.[50]

The most famous use as punishment came in Fascist Italy under Benito Mussolini. It was a favorite tool used by the Blackshirts to intimidate and humiliate their opponents.[51][52][53] Political dissidents were force-fed large quantities of castor oil by Fascist squads. This technique was said to have been originated by Gabriele D'Annunzio or Italo Balbo.[54] Victims of this treatment did sometimes die, as the dehydrating effects of the oil-induced diarrhea often complicated the recovery from the nightstick beating they also received along with the castor oil; however, even those victims who survived had to bear the humiliation of the laxative effects resulting from excessive consumption of the oil.[55] It is believed that the Nazi SA used this torture method against German Jews shortly after the appointment of Adolf Hitler as Chancellor of Germany in 1933.[56]

It is said that Mussolini's power was backed by "the bludgeon and castor oil".[55] In lesser quantities, castor oil was also used as an instrument of intimidation, for example, to discourage civilians or soldiers who would call in sick either in the factory or in the military. It took decades after Mussolini's death before the myth of castor oil as a panacea for a wide range of diseases and medical conditions was totally demystified, as it was also widely administered to pregnant women and elderly or mentally ill patients in hospitals in the false belief it had no negative side effects.

Today, the Italian terms manganello and olio di ricino, even used separately, still carry strong political connotations (especially the latter). These words are still used to satirize patronizing politicians, or the authors of disliked legislation. They should be used with caution in common conversation. The terms Usare l'olio di ricino, ("to use castor oil") and usare il manganello ("to use the bludgeon") mean "to coerce or abuse", and can be misunderstood in the absence of proper context.

Also in Greece, during the 4th of August Regime, castor oil was used as a form of punishment.[57]

Safety
The castor seed contains ricin, a toxic lectin. Heating during the oil extraction process denatures and deactivates the lectin. However, harvesting castor beans may not be without risk.[58] The International Castor Oil Association FAQ document states that castor beans contain an allergenic compound called CB1A. This chemical is described as being virtually non-toxic but has the capacity to sensitize people with hypersensitivity. The allergen may be neutralized by treatment with a variety of alkaline agents. The allergen is not present in the castor oil itself. These health issues, in addition to concerns about the toxic byproduct (ricin) from castor oil production, have encouraged the quest for alternative sources for hydroxy fatty acids.[59][60] Alternatively, some researchers are trying to genetically modify the castor plant to prevent the synthesis of ricin.[61]

Since castor oil is sometimes used to induce labor in full-term pregnancies (scientific evidence of its effectiveness is lacking),[62] consuming castor oil to treat constipation is not considered safe in pregnancies that are not at full term yet, as it may cause contractions of the womb.[63]

See also
Castor wax
List of unproven and disproven cancer treatments

Castor oil is a vegetable oil that is used for a wide range of cosmetic and medical purposes. It is said to provide health benefits for the face and skin.

People typically take castor oil as a laxative, but the oil has potential benefits for the skin.

This article will outline what castor oil is and discuss its benefits for the skin, as well as how to use it and possible side effects to expect.

Fast facts on castor oil
Castor oil comes from seeds of the ricinus communis plant, which is native to tropical areas of Africa and Asia.
It is typically applied directly to the skin using a cotton ball.
Castor oil is relatively safe to use, but some people have reported side effects after applying it to their skin.
Castor oil is thought to have anti-inflammatory, antimicrobial, moisturizing, and some other useful properties.

Castor oil is a translucent liquid with a yellow tint. It is an active ingredient in a wide variety of household items, from cleaning products to paints.

It has also been used to treat a range of medical conditions, most notably digestive issues.

Castor oil is broken down into ricinoleic acid in the small intestine. This speeds up the process of digestion. Although the evidence is less conclusive, castor oil has also demonstrated some potential benefits for the face and skin.

Castor oil and ricinoleic acid are thought to increase absorption in the skin and are sometimes used in the treatment of various skin conditions, including dermatosis, psoriasis, and acne. There are also anecdotal reports of castor oil promoting hair growth, including eyelashes, though no scientific literature that supports this.

By serving as a source of ricinoleic acid and several other fatty acids, castor oil has some properties that make it a useful skincare product, particularly for the face.

Benefits
Castor oil is said to provide the following benefits for the face and skin:

Face
Acne: The antimicrobial and anti-inflammatory properties of castor oil make it useful in reducing acne. Ricinoleic acid can inhibit growth in the bacteria that cause acne.
Texture: Castor oil is also rich in other fatty acids. These can enhance smoothness and softness when applied to facial skin.
Complexion: The fatty acids in castor oil can also promote the growth of healthy skin tissue, making it helpful in restoring uneven skin tones.
Sensitive skin: Castor oil has a low comedogenic score. This means it is unlikely to clog pores in the skin and reduces the risk of developing blackheads, making it appropriate for use on sensitive skin.
Inexpensive: Skincare products, and in particular facial creams and oils, can be very expensive. Castor oil is relatively low-cost and shares many similar properties, such as promoting a healthful complexion or moisture in the skin.
Skin
Anti-inflammatory: Both castor oil and ricinoleic acid have demonstrated anti-inflammatory properties. This makes them useful for treating irritated skin.
Antimicrobial: It may also protect the skin from bacterial infections by keeping out microbes that can cause disease.
Moisturizing: Castor oil contains triglycerides. These can help maintain moisture in the skin, making it a useful treatment for dry skin.
Hydration: Castor oil may have humectant properties, which means that it can draw moisture from the air into the skin, keeping the skin hydrated.
Cleansing: The triglycerides found in castor oil are also helpful in removing dirt from the skin.
While castor oil contains many chemicals linked to improved skin health, there has been limited research into the dermatological benefits of castor oil. It might be more effectively put to use alongside other treatments.

Use
It can take time for the skin to fully absorb castor oil, but diluting the oil can promote absorption into the skin.

People can dilute castor oil with other oils, such as olive or peanut oil. The recommended ratio is 1:1 – the quantity of castor oil should be the same as the oil with which it is mixed.

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While castor oil has a range of promising properties, it is important to note that the scientific evidence supporting many of these claims is not conclusive, and much of the evidence tends to be anecdotal rather than scientific.

This means that most studies are about one particular instance in which treatment with castor oil was successful, rather than providing wide-ranging and accurate data.

These are often reports that relate to allergic reactions, such as:

skin rashes
swelling
itching
Anyone who experiences an allergic reaction to castor oil should seek medical attention immediately.

Skin irritation and the development of rashes are the most commonly reported side effects.

Takeaway
Using castor oil is a useful and inexpensive way to promote skin health, and it may have particular benefits for facial skin.

However, much of the evidence underlying these benefits is yet to be deemed conclusive, and a greater degree of scientific research will be required to determine the full benefits of castor oil.

Castor oil is available to purchase online.

This oil is relatively safe, but it can cause some side effects that should be considered when deciding whether to use castor oil on the face and skin.

7 Benefits and Uses of Castor Oil

Castor oil is a multi-purpose vegetable oil that people have used for thousands of years.

It’s made by extracting oil from the seeds of the Ricinus communis plant.

These seeds, which are known as castor beans, contain a toxic enzyme called ricin. However, the heating process that castor oil undergoes deactivates it, allowing the oil to be used safely.

Castor oil has a number of medicinal, industrial and pharmaceutical uses.

It’s commonly used as an additive in foods, medications and skin care products, as well as an industrial lubricant and biodiesel fuel component.

In ancient Egypt, castor oil was burned as fuel in lamps, used as a natural remedy to treat ailments like eye irritation and even given to pregnant women to stimulate labor (1Trusted Source).

Today, castor oil remains a popular natural treatment for common conditions like constipation and skin ailments and is commonly used in natural beauty products.

Here are 7 benefits and uses of castor oil.

1. A Powerful Laxative
Perhaps one of the best-known medicinal uses for castor oil is as a natural laxative.

It’s classified as a stimulant laxative, meaning that it increases the movement of the muscles that push material through the intestines, helping clear the bowels.

Stimulant laxatives act rapidly and are commonly used to relieve temporary constipation.

When consumed by mouth, castor oil is broken down in the small intestine, releasing ricinoleic acid, the main fatty acid in castor oil. The ricinoleic acid is then absorbed by the intestine, stimulating a strong laxative effect (2Trusted Source).

In fact, several studies have shown that castor oil can relieve constipation.

For example, one study found that when elderly people took castor oil, they experienced decreased symptoms of constipation, including less straining during defecation and lower reported feelings of incomplete bowel movements (3Trusted Source).

While castor oil is considered safe in small doses, larger amounts can cause abdominal cramping, nausea, vomiting and diarrhea (4Trusted Source).

Although it can be used to relieve occasional constipation, castor oil is not recommended as a treatment for long-term issues.

SUMMARY
Castor oil can be used as a natural remedy for occasional constipation. However, it can cause side effects like cramping and diarrhea and should not be used to treat chronic constipation.
2. A Natural Moisturizer
Castor oil is rich in ricinoleic acid, a monounsaturated fatty acid.

These types of fats act as humectants and can be used to moisturize the skin.

Humectants retain moisture by preventing water loss through the outer layer of the skin (5Trusted Source).

Castor oil is often used in cosmetics to promote hydration and often added to products like lotions, makeup and cleansers.

You can also use this rich oil on its own as a natural alternative to store-bought moisturizers and lotions.

Many popular moisturizing products found in stores contain potentially harmful ingredients like preservatives, perfumes and dyes, which could irritate the skin and harm overall health (5Trusted Source).

Swapping out these products for castor oil can help reduce your exposure to these additives.

Plus, castor oil is inexpensive and can be used on the face and body.

Castor oil is thick, so it’s frequently mixed with other skin-friendly oils like almond, olive and coconut oil to make an ultra-hydrating moisturizer.

Though applying castor oil to the skin is considered safe for most, it can cause an allergic reaction in some people (6Trusted Source).

SUMMARY
Castor oil can help lock moisture in the skin. Though this natural alternative to store-bought products is considered safe for most, it can cause allergic reactions in some.

3. Promotes Wound Healing
Applying castor oil to wounds creates a moist environment that promotes healing and prevents sores from drying out.

Venelex, a popular ointment used in clinical settings to treat wounds, contains a mixture of castor oil and Peru balsam, a balm derived from the Myroxylon tree (7Trusted Source).

Castor oil stimulates tissue growth so that a barrier can be formed between the wound and the environment, decreasing the risk of infection.

It also reduces dryness and cornification, the buildup of dead skin cells that can delay wound healing (8).

Studies have found that ointments containing castor oil may be especially helpful in healing pressure ulcers, a type wound that develops from prolonged pressure on the skin.

One study looked at the wound-healing effects of an ointment containing castor oil in 861 nursing home residents with pressure ulcers.

Those whose wounds were treated with castor oil experienced higher healing rates and shorter healing times than those treated with other methods (9Trusted Source).

SUMMARY
Castor oil helps heal wounds by stimulating the growth of new tissue, reducing dryness and preventing the buildup of dead skin cells.
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4. Impressive Anti-Inflammatory Effects
Ricinoleic acid, the main fatty acid found in castor oil, has impressive anti-inflammatory properties.

Studies have shown that when castor oil is applied topically, it reduces inflammation and relieves pain.

The pain-reducing and anti-inflammatory qualities of castor oil may be particularly helpful to those with an inflammatory disease such as rheumatoid arthritis or psoriasis.

Animal and test-tube studies have found that ricinoleic acid reduces pain and swelling (10Trusted Source).

One study demonstrated that treatment with a gel containing ricinoleic acid led to a significant reduction in pain and inflammation when applied to the skin, compared to other treatment methods (11Trusted Source).

A test-tube component of the same study showed that ricinoleic acid helped reduce inflammation caused by human rheumatoid arthritis cells more than another treatment.

Aside from castor oil’s potential to reduce inflammation, it may help relieve dry, irritated skin in those with psoriasis, thanks to its moisturizing properties.

Although these results are promising, more human studies are needed to determine the effects of castor oil on inflammatory conditions.

SUMMARY
Castor oil is high in ricinoleic acid, a fatty acid that has been shown to help reduce pain and inflammation in test-tube and animal studies.

5. Reduces Acne
Acne is a skin condition that can cause blackheads, pus-filled pimples and large, painful bumps on the face and body.

It’s most common in teens and young adults and can negatively impact self-esteem.

Castor oil has several qualities that may help reduce acne symptoms.

Inflammation is thought to be a factor in the development and severity of acne, so applying castor oil to the skin may help reduce inflammation-related symptoms (12Trusted Source).

Acne is also associated with an imbalance of certain types of bacteria normally found on the skin, including Staphylococcus aureus (13Trusted Source).

Castor oil has antimicrobial properties that may help fight bacterial overgrowth when applied to the skin.

One test-tube study found that castor oil extract showed considerable antibacterial power, inhibiting the growth of several bacteria, including Staphylococcus aureus (14Trusted Source).

Castor oil is also a natural moisturizer, so it may help soothe the inflamed and irritated skin typical in those with acne.

SUMMARY
Castor oil helps fight inflammation, reduce bacteria and soothe irritated skin, all of which can be helpful for those looking for a natural acne remedy.
6. Fights Fungus
Candida albicans is a type of fungus that commonly causes dental issues like plaque overgrowth, gum infections and root canal infections (15Trusted Source).

Castor oil has antifungal properties and may help fight off Candida, keeping the mouth healthy.

One test-tube study found that castor oil eliminated Candida albicans from contaminated human tooth roots (16Trusted Source).

Castor oil may also help treat denture-related stomatitis, a painful condition thought to be caused by Candida overgrowth. This is a common issue in elderly people who wear dentures.

A study in 30 elderly people with denture-related stomatitis showed that treatment with castor oil led to improvements in the clinical signs of stomatitis, including inflammation (17Trusted Source).

Another study found that brushing with and soaking dentures in a solution containing castor oil led to significant reductions in Candida in elderly people who wore dentures (18Trusted Source).

SUMMARY
Several studies have shown that castor oil may help fight fungal infections in the mouth caused by Candida albicans.
7. Keeps Your Hair and Scalp Healthy
Many people use castor oil as a natural hair conditioner.

Dry or damaged hair can especially benefit from an intense moisturizer like castor oil.

Applying fats like castor oil to the hair on a regular basis helps lubricate the hair shaft, increasing flexibility and decreasing the chance of breakage (19Trusted Source).

Castor oil may benefit those who experience dandruff, a common scalp condition characterized by dry, flaky skin on the head.

Though there are many different causes of dandruff, it has been linked to seborrhoeic dermatitis, an inflammatory skin condition that causes red, scaly patches on the scalp (20Trusted Source).

Due to castor oil’s ability to reduce inflammation, it may be an effective treatment for dandruff that is caused by seborrhoeic dermatitis.

Plus, applying castor oil to the scalp will help moisturize dry, irritated skin and may help reduce flaking.

SUMMARY
The moisturizing and anti-inflammatory properties of castor oil make it an excellent option to keep hair soft and hydrated and help reduce dandruff symptoms.

Castor Oil Precautions
Many people use castor oil to treat a variety of issues, either by ingesting the oil or applying it to the skin.

Although castor oil is generally considered safe, it can cause adverse reactions and unwanted side effects in some people.

Can induce labor: It’s used by medical professionals to induce birth. For this reason, women at all stages of pregnancy should avoid consuming castor oil (21Trusted Source).
Can cause diarrhea: While it can be an effective way to alleviate constipation, you may get diarrhea if you take too much. Diarrhea can cause dehydration and electrolyte imbalances.
Can cause allergic reactions: It may cause an allergic reaction in some people when applied to the skin. First try applying a small amount to a tiny patch of skin to see how your body reacts (22Trusted Source).
SUMMARY
Castor oil can cause side effects, such as allergic reactions and diarrhea, in some people. It can also induce labor, so pregnant women should avoid it.
The Bottom Line
People have used castor oil for thousands of years as a powerful natural treatment for a variety of health issues.

It has been shown to help relieve constipation and moisturize dry skin, among many other uses.

If you are searching for an affordable, multi-purpose oil to keep in your medicine cabinet, castor oil may be a good choice.

Synonyms:
CASTOR OIL 35 EO; CASTOR OİL 35 EO; Castor oil; Castor oıl;  Castor Oil 35 EO; Castor Oıl35 EO; castor oıl 35 EO;  Oil, Castor; CASTOR OIL 35 EO; Ricinus oil 35 EO; 8001-79-4; Olio di ricino; Venelex; Xenaderm; Optase; Trypsin complex; UNII-D5335Y2I9G; Castor oil [USP:JAN]; SCHEMBL12939325; D5335Y2I9G; 1-O,2-O,3-O-Tris[(Z)-12-hydroxy-9-octadecenoyl]glycerol; 151438-72-1; 8013-56-7; 8015-57-4; 8021-37-2; 8036-08-6; 8041-22-3; 8041-95-0; 898831-11-3; 89958-32-7; kastor oil 35 EO; castor yağı 35 EO; kastor yağı35 EO; hind yağı 35 EO; hind yagı35 EO; hint yagı35 EO; hint oil 35 EO; hind oil 35 EO; hint oıl 35 EO; hind oil;hint yağı 35 eo ;L'huile de ricin; ; kastor oil; castor yağı; kastor yağı; hind yağı; hind yagı; hint yagı; hint oil; hind oil; hint oıl; hind oil;Castor Oil; Oil, Castor; CASTOR OIL; Ricinus oil; 8001-79-4; Olio di ricino; Venelex; Xenaderm; Optase; Trypsin complex; UNII-D5335Y2I9G; Castor oil [USP:JAN]; SCHEMBL12939325; D5335Y2I9G; 1-O,2-O,3-O-Tris[(Z)-12-hydroxy-9-octadecenoyl]glycerol; 151438-72-1; 8013-56-7; 8015-57-4; 8021-37-2; 8036-08-6; 8041-22-3; 8041-95-0; 898831-11-3; 89958-32-7; kastor oil; castor yağı; kastor yağı; hind yağı; hind yagı 35 EO; castor oıl 35 EO;  Castor Oıl 35 EO; hint yagı 35 EO; hint oil; 35 EO hind oil; hint oıl; hind oil;hint yağı;L'huile de ricin 35 EO; ; kastor oil; castor yağı; kastor yağı; hind yağı; hind yagı; hint yagı; hint oil; hind oil; hint oıl; hind oil;Castor Oil; Oil, Castor; CASTOR OIL; Ricinus oil; 8001-79-4; Olio di ricino; Venelex; Xenaderm; Optase; Trypsin complex; UNII-D5335Y2I9G; Castor oil [USP:JAN]; SCHEMBL12939325; D5335Y2I9G; 1-O,2-O,3-O-Tris[(Z)-12-hydroxy-9-octadecenoyl]glycerol; kastor oyil; 151438-72-1; 8013-56-7; 8015-57-4; 8021-37-2; 8036-08-6; 8041-22-3; 8041-95-0; 898831-11-3; 89958-32-7; kastor oil; castor yağı;  hint yağı kastor; kastor yağı; castor oil 35 EO, PEG 35, Hydrogenated Castor oil, Emulgin RT 35, Emulsogen EL 350, Polyoxyethylene castor oil ether, castor oil 35 etoksile, hint yağı etoksile, PEG 35 castor oil, hidrojene, ;  castor oıl;  CASTOR OIL; Castor Oıl; hind yağı; hind yagı; hint yagı; hint oil; hind oil; hint oıl; hind oil; hint yağı; L'huile de ricin; kastor oil 35; castor yağı 35 eo; kastor yağı; hind yağı; hind yagı; hint yagı; hint oil; hind oil; hint oıl; hind oil; indian oil; castore oil; kastor oil; hint yağ; Lhuile de ricin; huil de ricin; huile de ricin; hint yağ; kastor yağ;  L'huile de castor;  L'huile de castore; Castor Oıl; Oil, Castor; CASTOR OIL; Castoroıl; castoroil;CASTOROIL; CASTOROİL; KASTOR OIL; KASTOR OİL; kastor oil; hınt yagı; hınt yağı ;hınt yaği ; hint yaği kastor; kastor yaği; castor yağı; kastor yağı; kastoryağı; kastor yaği; kastor oıl; castor yağı;  hint yağı kastor; kastor yaği; castor yaği; kastor yaği; kastoryaği; kastor yağı; Kastor Oıl; Kastor Oil; CASTOR Oıl; castor oıl ; kastor oil35 ; hınt yagı35; hınt yağı35 ;hınt yaği04 ; hint yaği kastor035; kastor yaği 35; castor yağı 35; kastor yağı 35; kastoryağı 35 eo; kastor yaği 35 eo; kastor oıl 35 eo; castor yağı 35 eo;  hint yağı kastor 35 eo; kastor yaği 35 eo; castor yaği 35 eo; kastor yaği 35 eo; kastoryaği 35 eo; kastor yağı 35 eo; Kastor Oıl 35 eo; Kastor Oil 35 eo; CASTOR Oıl 35 eo; castor oıl 35 eo; castor oil 35 eo; castor oıl 35eo; castor oil 35eo; Huile de ricin 35 EO; Huile de ricin; 35 EO