Lanolin anhydrous

CAS Number:

8006-54-0

INCI Name:

Lanolin

Molecular Formula:

 Complex mixture of esters, alcohols, and fatty acids; often represented as C34H68O2 for simplification

Other Names:

Wool wax, wool grease, Adeps Lanae, anhydrous lanolin

EC Number:

232-348-6

Uses:

A natural, wax-like substance secreted by the sebaceous glands of sheep, coating their wool. It serves as a powerful protective and moisturizing agent with diverse applications:

· Personal Care & Cosmetics: Widely used in creams, lotions, lip balms, shaving creams, and makeup for its exceptional moisturizing and emollient properties.

· Topical Pharmaceuticals & Wound Care: A key ingredient in ointment bases, diaper rash products, hemorrhoid creams, and nipple creams for breastfeeding mothers. It is used to soothe chapped skin, protect minor skin irritations, and support wound healing.

· Industrial Uses: Functions as a lubricant, rust-proof coating, leather treatment, and additive in polishes and textiles

Origin

Lanolin is obtained as a by-product of wool production. It is extracted from shorn wool by washing it with detergents or solvents to remove the wax, followed by a series of purification and bleaching steps to yield refined lanolin. It is a renewable resource obtained without harming the sheep

What does Lanolin do in a formulation?

Its primary functions are:

• Emollient: Softens and smooths the skin.
• Moisturising / Occlusive Agent: Forms a protective, breathable barrier on the skin that prevents moisture loss.
• Skin Conditioning Agent.
• Emulsifying & Stabilising Agent: Helps bind oil and water phases.

Safety Profile:

· Safety Assessment: Generally recognized as safe for topical use in cosmetics and OTC drugs by regulatory bodies when properly purified.

· Allergenicity: A small percentage of the population (estimated 1.8%-2.5% in some studies) may have a lanolin allergy or sensitivity. Highly purified (e.g., "super-refined") grades are available for hypoallergenic products.

· Toxicity Warning: Lanolin is harmful if swallowed and can cause poisoning symptoms like diarrhea and vomiting. It should only be used topically.

· Important Note: Trace contaminants like pesticides from sheep husbandry can be present. Quality manufacturers use rigorous purification to minimize residues.

Technical profile: