Behenic Acid

Benefits
ProtectionSoftening
Concerns
Malassezia Feeding

What is Behenic Acid?

Behenic acid, also known as docosanoic acid, is a long-chain saturated fatty acid with 22 carbon atoms, naturally present in vegetable oils such as rapeseed, peanut, and mustard seed oils. In skincare and haircare products, it serves primarily as a multifunctional ingredient in categories like moisturizers, cleansers, shampoos, and conditioners. It functions by forming stable structures in formulations: as an emulsifier, it bridges oil and water phases to create smooth textures in creams and lotions; as a surfactant and cleansing agent, it aids in gentle dirt removal through micelle formation; and as an opacifier, it imparts a creamy appearance by scattering light. This fatty acid contributes to product viscosity, enhancing spreadability and feel on skin or hair without greasiness.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Opacifying agent
Makes a formula less transparent to create a creamy, opaque look; can also help visually mask suspended particles and improve aesthetic uniformity.
Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Cleansing agent
Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Helps soften and smooth skin texture for a supple feel.

Supports skin's natural protective barrier.

Enhances formula stability for even application.

Who It's For

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

Who May Benefit Who Should Avoid
Individuals with dry or rough skin seeking gentle softening.
People prone to Malassezia-related skin issues.
Those preferring non-comedogenic ingredients in daily routines.
Those sensitive to fatty acid surfactants.
Users of cleansers and conditioners for improved texture.
Individuals with specific fungal acne concerns.

Safety Notes

  • Rated low hazard by EWG, suitable for most formulations.
  • Generally recognized as safe in cosmetics per expert reviews.

Frequently Asked Questions about Behenic Acid

What is behenic acid derived from?

It occurs naturally in plant oils like rapeseed and peanut oil.

Is behenic acid safe for sensitive skin?

It carries a low hazard rating and low irritation potential from reliable assessments.

What roles does it play in products?

It acts as an emulsifier, surfactant, opacifier, and cleansing agent for better texture and performance.