Allantoin is a well-established functional cosmetic ingredient used mainly in skin-care and personal-care formulations. It is a nitrogen-containing heterocyclic compound with the INCI name ALLANTOIN. The chemical name is (2,5-Dioxo-4-imidazolidinyl)urea, with the molecular formula C₄H₆N₄O₃ and molecular weight 158.12 g/mol. Its CAS Number is 97-59-6.
Allantoin is recognised in cosmetic ingredient references for skin conditioning, skin protecting and soothing functions. It is commonly incorporated into formulations intended to maintain a comfortable, smooth and conditioned skin feel. It is found in products including skin creams, baby-care products, oral-care products, deodorants, shower gels, sunscreens and aftershave products.
Allantoin is a crystalline compound derived from the ureide family. It is generally supplied as a white, odourless crystalline powder. Its chemical structure contains a cyclic imidazolidine ring together with urea functionality, giving the molecule its characteristic physicochemical properties.
The current USP reference identifies Allantoin with the molecular formula C₄H₆N₄O₃ and molecular weight 158.12. The USP-NF monograph defines Allantoin as containing not less than 98.5% and not more than 101.0% of C₄H₆N₄O₃. This is a pharmacopeial acceptance criterion and should not automatically be represented as the specification for every cosmetic-grade commercial material.
Allantoin has limited water solubility compared with highly water-soluble humectants. Consequently, its concentration, processing temperature and method of incorporation should be considered carefully during formulation development.
Allantoin is primarily valued as a skin-conditioning and soothing cosmetic ingredient. It is used in formulations designed to support a smooth, comfortable skin feel and to help maintain the condition of the skin.
Its skin-protecting function makes it relevant to formulations intended to help protect skin from external influences. Its soothing function is particularly relevant to personal-care products developed for sensitive-feeling or stressed skin. These functions are recognised in established cosmetic ingredient references.
Allantoin can also contribute to the overall sensory and care profile of cleansing formulations. When combined with moisturising agents, emollients and other conditioning ingredients, it can form part of a broader formulation system designed around skin comfort and conditioning.
Allantoin Cosmetic Ingredient is used across a broad range of personal-care applications. These include face creams, moisturisers, lotions, hand-care products, body-care formulations, baby-care products, aftershave preparations, shower gels, deodorants, sunscreens and oral-care products.
In skin-care products, Allantoin can be selected for formulations where soothing and skin-conditioning properties are desired. It can be incorporated into creams, lotions, gels and emulsions alongside humectants, emollients and other functional cosmetic ingredients.
In hand-care and body-care formulations, it may be used in products designed for skin that feels rough or dry. In cleansing products, it can provide an additional conditioning component alongside surfactants.
The appropriate use level depends on the formulation type, target market, regulatory requirements and the specifications of the supplied raw material.
Allantoin's limited water solubility is an important consideration during formulation development. It should be incorporated using a process appropriate to the formulation and the intended concentration. Excessive concentration can create dissolution or crystallisation challenges, particularly when the finished product is stored under changing temperature conditions.
Formulators should evaluate the compatibility of Allantoin with the complete formulation system, including pH, surfactants, preservatives, electrolytes, polymers and other active cosmetic ingredients. Stability testing should assess appearance, crystallisation, viscosity, pH and other relevant finished-product parameters.
For commercial procurement, the actual Certificate of Analysis should be used to confirm assay, identification, moisture, residue and impurity requirements. The USP assay range of 98.5–101.0% should only be used as a product specification where the supplied material is actually controlled to the applicable USP standard.
As an Allantoin Cosmetic Ingredient Manufacturer in India, Swapnroop focuses on supplying quality-oriented cosmetic raw materials for skin-care and personal-care formulation requirements. Allantoin is suitable for manufacturers developing soothing, conditioning and skin-protecting cosmetic formulations.
For bulk cosmetic ingredient procurement, important quality considerations include identity, assay, appearance, moisture, solubility and impurity control. The applicable specification should be established according to the intended cosmetic application and target market.
| Parameter | Specification |
|---|---|
| Appearance | White or colourless crystals / white powder |