Zinc Coceth Sulfate

What is Zinc Coceth Sulfate?

Zinc Coceth Sulfate is an anionic surfactant produced by sulfating ethoxylated coconut fatty alcohols and neutralizing with zinc oxide or hydroxide. The 'coceth' indicates coconut alcohol chains with added ethylene oxide groups, typically 2-4 moles, enhancing mildness compared to direct sulfates. Primarily featured in rinse-off products like shampoos, body washes, and facial cleansers, it lowers surface tension to form micelles that encapsulate and remove dirt, sebum, and residues from skin and hair. Its emulsifying action stabilizes oil-in-water mixtures, ensuring even texture in formulations. The zinc counterion provides a subtle conditioning feel and potential synergy with antimicrobial actives in some shampoos, while maintaining strong foaming even in hard water conditions. This makes it a versatile choice for everyday cleansing routines seeking balance between efficacy and gentleness.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

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

Delivers effective dirt and oil removal through micelle formation for clean skin and hair.

Produces stable, rich foam that enhances the sensory experience of washing.

Supports emulsion stability in cleansers, preventing separation for consistent product performance.

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 normal to oily skin or hair needing reliable daily cleansing.
Those with known sensitivities to sulfate surfactants.
Users preferring foaming cleansers that perform well in various water conditions.
Individuals experiencing dryness from frequent surfactant use.
People incorporating it into shampoos for its compatibility with conditioning agents.
People preferring completely sulfate-free formulations.

Safety Notes

  • Generally regarded as safe in rinse-off products at typical use levels.
  • Non-comedogenic, unlikely to clog pores on acne-prone skin.

Frequently Asked Questions about Zinc Coceth Sulfate

What is Zinc Coceth Sulfate used for?

It serves as a surfactant and emulsifier in shampoos, body washes, and cleansers to enable foaming and dirt removal.

Is it suitable for sensitive skin?

Its ethoxylated structure offers milder cleansing compared to non-ethoxylated sulfates.

Does it cause breakouts?

Rated non-comedogenic, it does not typically contribute to pore clogging.