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LOCRON S

Locron S is a complex inorganic salt that consists of complex basic aluminium chloride. 
Locron S is a soluble aluminum complex. 
Locron S is believed that ACH acts as an antiperspirant by precipitating inside the eccrine sweat glands to produce insoluble aluminium hydroxide, which then plugs the gland. 

CAS Number: 12042-91-0
Molecular Formula: AlClH5O-
Molecular Weight: 83.47
EINECS Number: 234-933-1

Synonyms: ALUMINUM CHLOROHYDROXIDE;ALUMINUM CHLOROHYDROXIDE, DIHYDRATE;ALUMINUM HYDROXYCHLORIDE, DIHYDRATE;MACROSPHERICAL(R) 95;BASIC ALUMINUM CHLORIDE;CHLORHYDROL(R);POLYALUMINUM CHLORIDE;aluminum chloride oxide

Locron S is a fine, free-flowing white powder specifically engineered for stability, purity, and ease of formulation in various personal care products.
The compound works by reducing perspiration through the formation of temporary plugs in the sweat glands, which limits the amount of moisture released onto the skin.
Locron S is known for its exceptionally low iron content, which prevents yellow stains on clothing and minimizes discoloration during storage or use.

There are many soluble aluminium salts that can be used as antiperspirants, but they differ only in the relative amounts of aluminium, chloride, and zirconium. 
Locron S may be used in aerosol formulations. 
Locron S is also desirable because it has a pH of about 4.5, which is less acidic than other aluminum salts and, therefore, does not irritate the skin or damage clothing as much as plain aluminum chloride. 

The empirical formula for Locron S is Al2(OH)5Cl·2H2O. 
However, when dissolved, the basic unit of Locron S is more closely given by Al13O4(OH)24(H2O) with seven disassociated Cl? ions.
Locron S is a highly refined cosmetic-grade aluminum chlorohydrate compound primarily used as an active ingredient in antiperspirant formulations.

This property makes it ideal for premium deodorants, roll-ons, sticks, and aerosol formulations that require clear or stain-free performance.
Its refined composition ensures smooth skin compatibility, producing an antiperspirant that is effective yet gentle even for sensitive users.
The product has excellent solubility and stability, allowing it to blend uniformly in aqueous and hydroalcoholic systems without forming residues.

Locron S can be used alone or in combination with other deodorizing ingredients to enhance long-term odor protection and skin comfort.
Manufacturers often prefer Locron S for formulations where appearance, texture, and purity are key factors in consumer satisfaction.
In industrial terms, Locron S demonstrates high formulation flexibility, suitable for both traditional opaque emulsions and modern clear gel-based deodorants.

Locron S non-reactive nature prevents unwanted color changes, ensuring consistency in transparent or tinted cosmetic bases.
Because of its controlled particle size and purity, it disperses easily, reducing processing time and improving production efficiency.
Although primarily developed for personal care, Locron S can also be utilized in specialized chemical and technical applications where aluminum chlorohydrate acts as a mild coagulant or stabilizing agent.

Locron S may function as a pH adjuster or flocculant in laboratory and textile formulations, taking advantage of its ionic aluminum structure.
However, its core purpose remains in hygiene products, where it delivers reliable sweat reduction and aesthetic quality.

Locron S is typically applied in roll-ons, aerosols, sticks, creams, and pump sprays, offering consistent activity across different cosmetic forms.
Locron S provides lasting protection, a smooth sensory feel, and high compatibility with fragrance oils, emollients, and polymers.
Its performance remains stable under varying humidity and temperature conditions, making it a dependable antiperspirant base for long shelf life.

In summary, Locron S is a high-purity, low-impurity aluminum chlorohydrate designed for superior sweat control and minimal staining.
Locron S provides gentle yet effective action, excellent formulation compatibility, and enhanced appearance retention in finished cosmetic products.
Its combination of technical precision, safety, and performance makes it a preferred ingredient in advanced personal care formulations.

Locron S is an antiperspirant agent for the cosmetic industry. 
It may be used to generate aqueous solutions of aluminum chlorohydrate. 
Locron S can also be incorporated in skin lotions, skin creams, and shaving lotions to achieve a slight astringent effect.

Locron S is an astringent that reduces perspiration and has a slight deodorising effect. 
Locron S offers approximately 5% higher astringent and antiperspirant performance compared to ACH (based on equal active contents of 10% m/m).
Though being well tolerated, dermatological trials should be carried out with the final antiperspirant/ deodorant formulation to establish beyond doubt that no skin irritation is caused by the combination of products, each of which is in itself non-irritant. 

Locron S grades can also be incorporated in skin lotions, skin creams and shaving lotions to achieve a slight adstringent effect.
Locron S is an inorganic polymer compound, a product between aluminum chloride and aluminum hydroxide, bridging polymerization through hydroxyl groups, with varying numbers of hydroxyl groups in the molecule. 
Colorless or yellow resin-like solid, Locron S solution is colorless or yellow-brown transparent liquid, sometimes gray-black mucus due to impurities. 

The content of alumina in the liquid product is more than 8%, and the content of alumina in the solid product is 20%~40%. 
Locron S has strong bridging adsorption property, easily soluble in water, and the hydrolysis process is accompanied by electrochemical, cohesion, adsorption and precipitation and other physicochemical processes. 
Locron S is corrosive.

Density : 1.95 (at 20℃)
Vapor pressure : 0.001 Pa at 20℃
InChI : InChI=1S/Al.ClH.H2O.3H/h;1H;1H2;;;/p-1
InChIKey : HMVUEGRSFKSLII-UHFFFAOYSA-M
SMILES : [AlH3].[OH-].Cl

Locron S is an anhydrous antiperspirant active as a long-term perspiration-regulating agent. Used in creams, lotions, aftershave formulations, antiperspirant and deodorants. 
Locron S offers low iron qualities for reduced yellowing.
Locron S is a specialized aluminum chlorohydrate complex formulated to provide high-efficiency perspiration control while maintaining excellent cosmetic aesthetics.

Locron S belongs to a class of inorganic salts derived from aluminum and hydrochloric acid, but it is processed under tightly controlled conditions to achieve exceptional uniformity and purity.
The compound has a fine particle structure that ensures rapid dissolution in both aqueous and hydroalcoholic bases, which makes it suitable for a wide range of formulations.
Locron S functions through a physiological mechanism: when applied to the skin, Locron S reacts with moisture and proteins in the sweat glands to form temporary aluminum-protein plugs.

These plugs reduce the flow of sweat to the skin surface without completely blocking the gland, thus providing effective and safe perspiration reduction.
This mechanism also helps minimize odor development because bacteria have less moisture to metabolize, reducing the source of body odor naturally.
Locron S is recognized for its low astringency, which gives it a more comfortable feel on application compared to conventional aluminum salts.

It does not leave a sticky or powdery residue, ensuring a smooth and clean sensation on the skin after drying.
This feature makes it ideal for daily use in personal care products such as clinical-strength antiperspirants, soft cream deodorants, and quick-drying sprays.
Another important characteristic of Locron S is its outstanding color stability.

Unlike impure aluminum chlorohydrates, it contains minimal traces of iron and heavy metals, preventing the typical yellowing seen on white or light-colored fabrics.
It also remains colorless and odorless during product storage, which enhances the long-term stability and visual appeal of the finished product.

In cosmetic manufacturing, Locron S offers excellent compatibility with various formulation systems, including emulsions, gels, wax-based sticks, and microemulsions.
It maintains its structure and performance even when combined with organic oils, emulsifiers, silicones, or fragrance compounds.
This makes it versatile across product formats such as roll-ons, solid sticks, pump sprays, and clear gels, where consistent performance and appearance are critical.

From a technological perspective, Locron S is processed to have a controlled molecular weight distribution and specific aluminum-to-chloride ratio.
This control optimizes both its antiperspirant activity and its mildness on the skin, reducing the potential for irritation even with frequent use.
As a result, it is often selected for formulations targeting sensitive skin, hypoallergenic products, and dermatologically tested deodorants.

Locron S also has excellent thermal and chemical stability, which allows it to maintain efficacy during manufacturing processes involving high temperatures or varying pH conditions.
Its resistance to hydrolysis prevents premature breakdown, ensuring that the active remains potent from production to final use.
These features contribute to longer product shelf life and stable performance under humid or warm storage environments.

Beyond personal care, Locron S can be employed in industrial and chemical applications that require controlled flocculation, stabilization, or neutralization.
Its ionic structure allows it to act as a binding and stabilizing agent in certain chemical solutions and dispersions.
Nevertheless, its refined cosmetic grade and skin compatibility make it primarily valued in premium deodorant and antiperspirant lines.

Locron S combines scientific precision and cosmetic performance, providing high antiperspirant efficacy, gentle skin interaction, and superior color protection.
It is a cornerstone ingredient in modern personal care formulations aimed at balancing effectiveness, comfort, and long-term product stability.
Its reputation as a clean, consistent, and high-quality aluminum chlorohydrate compound continues to make it one of the most trusted choices for leading cosmetic manufacturers worldwide.

Locron S is an antiperspirant agent for the cosmetic industry. 
It may be used to generate aqueous solutions of aluminum chlorohydrate. 
Locron S can also be incorporated in skin lotions, skin creams, and shaving lotions to achieve a slight astringent effect.

Locron S is a high-performance antiperspirant. 
Locron S is used in roll-on, pump and cream.

It reduces perspiration with a slight deodorizing effect.
Locron S is fully cosmetic GMP certified (ISO 22716) and fully compliant with the high-quality standards in the cosmetics industry.

Uses Of Locron S:
Locron S is primarily used as an active antiperspirant ingredient in personal care products designed to control perspiration and odor.
It is the key component in roll-ons, aerosols, creams, sticks, and clear gels, where it provides long-lasting sweat reduction through controlled interaction with the sweat glands.
This function helps keep the skin dry and comfortable while reducing body odor naturally, without masking it with heavy fragrances.

In cosmetic formulations, Locron S is chosen for its superior purity and mildness, making it ideal for products intended for sensitive or easily irritated skin.
Its low astringency provides a smooth and non-sticky feel after application, enhancing user comfort.
Manufacturers often incorporate it into hypoallergenic and dermatologically tested deodorants to ensure safety and long-term skin compatibility.

Locron S is extensively used in clear and transparent deodorant systems, where visual clarity and color stability are essential.
Its minimal iron content prevents yellow stains on fabrics and discoloration in packaging, making it highly valued for premium cosmetic lines.
Because of this property, it is often used in colorless roll-on and gel-based deodorants that must remain visually appealing over long shelf lives.

In clinical and high-strength formulations, Locron S delivers reliable sweat-blocking performance even under extreme heat or physical activity.
It helps reduce wetness effectively, making it suitable for products marketed for athletes or people living in hot climates.
These formulations benefit from the consistent performance of Locron S under both normal and stressful conditions.

The compound is also used in aerosol spray deodorants, where it maintains stability and suspension within hydroalcoholic systems.
Its controlled particle size and excellent solubility allow it to disperse evenly, preventing sedimentation or nozzle clogging.
This enables manufacturers to create lightweight, fast-drying sprays that deliver uniform coverage and lasting protection.

In solid stick and cream formulations, Locron S enhances structural stability and texture by interacting with waxes, polymers, and emollients.
It contributes to smooth application and a dry finish, avoiding the chalky residues often caused by less refined aluminum salts.
This property makes it ideal for both traditional wax sticks and newer gel-stick hybrids with modern textures.

Beyond antiperspirant applications, Locron S finds limited but useful roles in specialized chemical and industrial settings.
It may act as a mild coagulant, neutralizer, or flocculant in laboratory solutions where a stable aluminum source is required.
However, these secondary uses are less common compared to its dominance in personal care formulations.

In textile or finishing treatments, small quantities of Locron S may be used as an auxiliary agent to improve material brightness or surface uniformity.
Its controlled ionic properties make it suitable for adjusting pH and promoting even deposition of certain textile coatings.
Still, its use in these applications is niche and secondary to its cosmetic market.

Because of its compatibility with various formulation bases, Locron S can be combined with other actives such as deodorizing agents, emollients, and humectants.
This flexibility allows cosmetic chemists to design multifunctional deodorants that provide not only sweat reduction but also skincare benefits.
Such combinations result in high-end products that balance efficacy, comfort, and long-term protection.

In dermatological formulations, Locron S is used where both medical efficacy and aesthetic appeal are necessary.
It can be found in prescription-grade or clinic-tested antiperspirants for treating hyperhidrosis (excessive sweating).
Its gentle yet powerful action helps manage moisture without causing irritation or damage to sensitive skin.

Locron S revolve around its role as a premium-grade aluminum chlorohydrate for sweat control and cosmetic enhancement.
It serves in multiple product formats — from sprays and gels to creams and sticks — with consistent results.
Its purity, safety, and versatility make it a benchmark ingredient in modern personal care and hygiene products.

Safety Profile Of Locron S:
A mild human skin irritant, when heated to decomposition it emits toxic fumes of Cl-.
Locron S, although considered safe for cosmetic use, must be handled carefully because of the chemical properties of its aluminum chlorohydrate composition.
It can cause mild irritation to the eyes, skin, and respiratory tract if handled in its concentrated or powdered form without protection.

When used in formulated products, it is generally non-hazardous, but exposure to the raw powder should still be minimized.
Direct skin contact with Locron S powder or concentrated solutions may lead to dryness, slight redness, or irritation.
This occurs because aluminum salts can alter the natural moisture balance of the skin and temporarily affect its surface pH.

Protective gloves and regular washing after handling are recommended during production or laboratory work.
Eye exposure can result in transient irritation, tearing, or discomfort due to the fine particulate nature of the material.

If particles enter the eye, immediate rinsing with clean water for several minutes helps reduce potential inflammation.
To avoid contact, safety goggles or face shields should be worn during mixing, weighing, or transferring operations.

 

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