Sodium Sarcosinate

What is Sodium Sarcosinate?

Sodium sarcosinate is the sodium salt of sarcosinic acid, a synthetic derivative of the amino acid glycine with a methyl group attached to the nitrogen. This anionic surfactant appears in hair care formulations like shampoos and conditioners, where it lowers surface tension to enable gentle cleansing and stable foaming. It contributes to hair conditioning by coating strands to minimize friction, enhancing smoothness and ease of combing. Additionally, it acts as a viscosity controlling agent, helping to achieve the ideal thickness for product spreadability and suspension of other ingredients. Found in rinse-off products, it supports overall formula performance without residue buildup, making it suitable for everyday cleansing routines in personal care items.

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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Enhances hair softness and manageability by reducing friction during grooming.

Stabilizes product texture for better application and feel.

Supports mild foaming action for effective yet gentle cleansing.

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 conditioning benefits in daily shampoos.
Those with known allergies to sarcosine derivatives.
People preferring stable, easy-to-use hair care formulas.
People sensitive to anionic surfactants in high concentrations.
Users of rinse-off products looking for non-comedogenic options.
Individuals preferring completely preservative-free formulations.

Safety Notes

  • Rated low hazard by independent safety assessments.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Sodium Sarcosinate

What is sodium sarcosinate used for?

Primarily as a hair conditioner and viscosity controller in shampoos and cleansers.

Is it safe for sensitive skin?

Generally low irritation risk based on safety reviews.

Does it clog pores?

Rated non-comedogenic with a zero rating.