Lauric Acid

Benefits
Antiseptic
Concerns
Malassezia Feeding

What is Lauric Acid?

Lauric acid, chemically dodecanoic acid (C12H24O2), is a saturated medium-chain fatty acid abundant in coconut oil and palm kernel oil. Extracted or synthesized for purity, it appears in cosmetics primarily within cleansing formulations such as bar soaps, shampoos, facial washes, and body cleansers. Functioning as a surfactant, it lowers surface tension to create foam and micelles that lift away dirt, excess sebum, and impurities for thorough rinsing. As an emulsifying agent, it stabilizes oil-in-water mixtures, ensuring even textures in emulsions. Its subtle odor also acts as a fragrance component, enhancing sensory appeal without dominating scents. Naturally antimicrobial, it integrates into rinse-off products to support hygiene routines, with concentrations adjusted for efficacy and mildness.

Comedogenic Rating 4/5 Higher 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:

Fragrance ingredient
Contributes scent character and/or masks base odors, shaping the overall sensory experience of the formula (subject to allergen and IFRA considerations).
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

Offers antiseptic action against certain microbes in cleansing products.

Effectively removes dirt and oil as a surfactant and cleanser.

Stabilizes emulsions for smooth, consistent product formulas.

Who It's For

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

Who May Benefit Who Should Avoid
Users seeking strong cleansing in rinse-off washes.
Those with oily skin due to high comedogenic rating.
Individuals wanting natural-derived antimicrobial support.
People prone to malassezia-related skin concerns.
People with normal skin preferring soap-based cleansers.
Acne-prone individuals sensitive to pore-clogging ingredients.

Safety Notes

  • Rated low overall hazard by safety databases.
  • Deemed safe for cosmetic use in typical concentrations.

Frequently Asked Questions about Lauric Acid

What does lauric acid do in skincare?

Acts as surfactant for cleansing, emulsifier for stability, and fragrance contributor in washes and soaps.

Is lauric acid safe for daily use?

Low hazard rating supports safety in cosmetic products at standard levels.

Why avoid lauric acid for oily skin?

High comedogenic potential can clog pores and worsen oiliness.