Lanolin

What is Lanolin?

Lanolin is a natural, waxy substance obtained from the sebaceous secretions of sheep's wool, primarily composed of esters of long-chain fatty acids and alcohols, along with cholesterol and other sterols. In cosmetics, it belongs to emollient and emulsifying categories, commonly found in creams, ointments, lip balms, and hair products. It functions by forming a semi-occlusive barrier on the skin or hair, mimicking the lipid structure of the stratum corneum to reduce transepidermal water loss. As an emulsifier, it stabilizes oil-in-water formulations by creating a protective film at the interface between phases. Its emollient properties soften rough textures, while surfactant qualities aid in product spreadability. Purified forms minimize impurities, enhancing compatibility in diverse formulations from protective barriers to conditioning agents.

Comedogenic Rating 1/5 Low risk of clogging pores

EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emulsion stabilizer

Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.

Hair conditioning

Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.

Emollient

Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.

Skin protecting

Forms a barrier to protect skin from external irritants.

Surfactant

Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.

Emulsifying agent

Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Antistatic agent

Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.

Skin conditioning agent

Maintains skin softness, smoothness, and flexibility.

Benefits

Helps retain skin moisture by forming a protective layer.

Softens and smooths skin and hair surfaces.

Stabilizes emulsions for consistent product texture.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit	Who Should Avoid
People with dry or chapped skin seeking barrier support.	Those with known wool or lanolin allergies.
Individuals needing hair softening and detangling.	People prone to contact dermatitis.
Users of ointments and thick creams for everyday hydration.	Sensitive skin types that react to animal-derived waxes.

Safety Notes

Generally recognized as safe for cosmetic use by regulatory panels.
May sensitize a small percentage of individuals; patch testing advised.

Frequently Asked Questions about Lanolin

What is lanolin derived from?

It is a wax extracted from sheep wool grease, purified for use in cosmetics.

Is lanolin safe for daily skincare?

Yes, safety assessments deem it safe as used, though test for personal sensitivity.

Does lanolin help with dry skin?

It supports moisture retention via a barrier-like film on the skin.