Sodium Palmitoyl Sarcosinate

What is Sodium Palmitoyl Sarcosinate?

Sodium Palmitoyl Sarcosinate is a mild anionic surfactant formed by reacting sarcosine—an N-methyl derivative of the amino acid glycine—with palmitic acid, a saturated fatty acid typically sourced from vegetable oils like palm. Commonly found in shampoos, conditioners, body washes, facial cleansers, and oral care products, it serves as a primary or co-surfactant. Its function relies on a negatively charged head group that reduces water's surface tension, enabling effective emulsification of oils and dirt into micelles for easy rinsing. The amino acid structure imparts gentleness, minimizing disruption to the skin's barrier or hair's lipid layer compared to harsher sulfates. It also deposits a thin conditioning film on hair shafts, enhancing slip and reducing tangles during wet combing. This makes it ideal for mild, frequent-use rinse-off formulas targeting everyday hygiene.

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:

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

Benefits

Provides effective yet gentle cleansing by lifting dirt and oils without harsh stripping.

Contributes to hair conditioning, improving softness, shine, and ease of styling.

Supports low-irritation formulations suitable for daily personal care routines.

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 seeking mild, sulfate-alternative cleansers for hair and skin.
Those with rare allergies to sarcosine derivatives or fatty acid surfactants.
People with normal hair types wanting improved manageability from shampoos.
People experiencing irritation from similar mild anionics in patch tests.
Users of frequent-use products like body washes or facial cleansers.
Individuals preferring completely preservative- and surfactant-free products.

Safety Notes

  • Considered low hazard (EWG score 1) based on available assessments.
  • Non-comedogenic (rating 0), unlikely to clog pores in rinse-off applications.

Frequently Asked Questions about Sodium Palmitoyl Sarcosinate

What is Sodium Palmitoyl Sarcosinate used for?

Primarily as a surfactant, cleansing agent, and hair conditioner in shampoos, washes, and cleansers.

Is it suitable for sensitive skin?

Yes, recognized for its mild nature in cosmetic ingredient safety evaluations.

Does it cause breakouts?

Non-comedogenic with a rating of 0, safe for most acne-prone users in rinse-off products.