Allantoin USP

Skin-Conditioning and Soothing Properties

Allantoin is commonly used in formulations designed to soothe the skin and improve its overall feel. It is a useful ingredient in products developed for dry, sensitive, or easily irritated skin.

Versatile Formulation Applications

Suitable for a wide range of cosmetic and personal care products, allantoin is commonly used in facial creams, body lotions, cleansers, shaving products, and gels. It can be incorporated into both leave-on and rinse-off formulations.

Limited Water Solubility

Allantoin has limited solubility in water at room temperature and is practically insoluble in oils. Formulators should account for its solubility when selecting the addition phase, use concentration, and processing conditions.

Recommended Use Levels

Typical cosmetic use levels range from approximately 0.1% to 0.5%, although some formulations use concentrations up to 2%. The appropriate concentration depends on the application, solubility, and supplier specifications.

Recrystallization Requires Attention

Allantoin can recrystallize as a formulation cools, particularly when higher concentrations have been dissolved in a heated water phase. Adequate dispersion, appropriate processing, and finished-product stability testing help identify and prevent unwanted crystal formation.

What is Allantoin USP used for in cosmetics?

Allantoin USP is used as a skin-conditioning, soothing, and skin-protecting ingredient in cosmetic and personal care formulations. Common applications include facial moisturizers, body lotions, creams, cleansers, shaving products, and other skincare products.

What does USP mean in Allantoin USP?

USP stands for United States Pharmacopeia. It indicates that the material is intended to meet the applicable USP monograph requirements. Buyers should review the supplier's documentation to confirm the grade, specifications, and intended application.

What is the recommended use level for Allantoin USP?

Typical cosmetic use levels range from approximately 0.1% to 0.5%, although some formulations use up to 2%. The appropriate level depends on the formulation type, processing conditions, and solubility limitations. Always verify the recommended concentration against the current technical documentation.

Is Allantoin USP soluble in water?

Allantoin has limited solubility in water at room temperature, with greater solubility at elevated temperatures. It is practically insoluble in oils. Formulators should account for these properties when developing water-based products, emulsions, and gels.

How do you incorporate Allantoin USP into a cosmetic formulation?

Allantoin can be incorporated into the water phase under suitable mixing and temperature conditions. In emulsions, it may also be added during the cooling phase with sufficient agitation to disperse the powder. The best method depends on the concentration and formulation system.

Can Allantoin USP recrystallize in a finished product?

Yes. Allantoin may recrystallize during cooling or storage if the finished formulation cannot maintain the ingredient in solution. This can create visible particles or a gritty texture. Formulators should evaluate solubility, processing conditions, and stability throughout product development.

What is the INCI name and CAS number for Allantoin USP?

The INCI name is Allantoin, and its CAS number is 97-59-6. These identifiers can be used when reviewing ingredient documentation, developing formulations, and maintaining raw material records.

Which cosmetic products can contain Allantoin USP?

Allantoin USP is commonly used in facial and body moisturizers, hand creams, lotions, cleansers, shaving products, after-sun preparations, and other personal care formulations. Its versatility makes it suitable for a variety of leave-on and rinse-off products, subject to formulation testing.

How should Allantoin USP be stored?

Store allantoin in a tightly closed container in a cool, dry environment, protected from moisture and direct light. Follow the storage conditions and shelf life specified in the supplier's current technical documentation.

What documentation should buyers request when purchasing Allantoin USP in bulk?

Bulk purchasers should review the Certificate of Analysis (COA), Safety Data Sheet (SDS), and applicable product specifications. These documents help verify material identity, quality parameters, handling requirements, and conformance with the agreed purchasing specifications.