Allantoin

Allantoin is a gentle, multifunctional skincare ingredient prized for its soothing, healing, and moisturizing properties — making it a favorite in both cosmetic and pharmaceutical formulations.

• INCI name: Allantoin
• Appearance: White, odorless crystalline powder
• Solubility: Slightly soluble in water (≈ 0.5% at room temperature; better in hot water)
• pH stability range: 4.0–8.0 (best activity around 5.0–6.5)

Functions in Cosmetics & Skin Care

1. Skin Protectant: Forms a protective barrier that shields skin from irritants and helps it recover from minor damage.

2. Soothing & Anti-irritant: Reduces redness, inflammation, and irritation — excellent for sensitive or acne-prone skin.

3. Moisturizing (Humectant-like): Helps retain water in the stratum corneum, improving smoothness and softness.

4. Cell Regeneration Promoter: Encourages the growth of new tissue, aiding in healing and reducing the appearance of scars and dry patches.

Common Applications

• Facial creams and lotions
• Aftershave and soothing gels
• Baby products
• Acne treatments and healing creams
• Lip balms and masks
• Shampoos and scalp care formulations
• Wound-healing ointments
• Sensitive skin skincare products

Formulation Guidelines

Typical use level 0.1–0.5% (up to 1% max)
Solubility: Dissolve in water at ~50–60 °C

Compatibility: Works well with glycerin, panthenol, aloe vera, urea, niacinamide

Incompatibilities: Avoid highly acidic (pH <4) or highly alkaline systems

Add to the heated water phase

Safety Profile

• Non-toxic, non-irritating, non-sensitizing
• Approved by the U.S. FDA as an over-the-counter (OTC) skin protectant
• Safe for daily use in both leave-on and rinse-off products