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Sodium Methyl Cocoyl Taurate

Also known as: SMCT

A taurate cleanser made with coconut-derived fatty acids; sulfate-free does not mean irritation-free.

Risograph-style illustration of cleansing foam in a basin
Editorial illustration

Sodium methyl cocoyl taurate is an anionic cleansing surfactant, made using coconut-fatty-acid chemistry and a methyltaurate component. It is not a taurine supplement. CIR's final group report supported reported cosmetic uses when formulated to be nonirritating, rather than declaring all taurate cleansers universally gentle.1

  • An anionic surfactant, not free taurine.1
  • Cocoyl materials can vary in fatty-chain composition.1
  • The final CIR report was released in February 2016.1

What is Sodium Methyl Cocoyl Taurate?

The cocoyl part denotes a mixture of fatty-acid-derived chains rather than a single untouched coconut ingredient. The taurate component is a different chemical identity from free taurine. A cleanser's mildness also depends on the surfactant blend, active level, pH and contact time, not just whether it is marketed as sulfate-free.1

Where it comes from

Natural sources

  • Coconut fatty acids provide a feedstock for the cocoyl portion.

How it's made

Chemically manufactured surfactant; supplied grades may contain water, salts and a specified active-matter fraction.

What it does in products

  • Cleansing surfactant
  • Foam support in cleansers and shampoos

Benefits

Cleansing in a formulated product

limited evidence

Its documented role supports use in cleansers, but an individual user's comfort is a property of the full wash system.1

The CIR report is a safety assessment, not a clinical head-to-head trial proving that every taurate cleanser is gentler than every sulfate cleanser.

Evidence scope and limitations

Cosmetic sodium methyl cocoyl taurate using the final 2016 group report, not the preceding draft panel packet.

  • A group safety conclusion is not comparative clinical mildness evidence.
  • Commercial grades and exposure types vary.

Evidence last checked: 2026-10-01

Side effects & safety

Dryness, stinging or irritation (varies)A nonirritating-formulation qualification remains relevant even in a sulfate-free cleanser.

Safety considerations

  • A raw-material active-matter percentage differs from its percentage in a finished cleanser.
  • Not for: Avoid direct eye exposure and raw surfactant use.
  • Not for: Stop a cleanser that consistently provokes a rash; sulfate-free labeling does not exclude allergy to its other ingredients.
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Amounts studied & product use

These figures describe research or common product use, not a personal dose or treatment recommendation.

In skincare studies and products

The final CIR report evaluates reported cosmetic uses and distinguishes rinse-off from leave-on exposure. Supplier active-matter figures are not ready-to-use skin concentrations; this guide does not provide a DIY wash formula.

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Regulatory status

  • Used as a U.S. cosmetic surfactant. A favorable CIR assessment is not FDA certification of gentleness or disease-treatment claims.
  • INCI name on cosmetic labels: Sodium Methyl Cocoyl Taurate.
  • 2016 final alkyl-taurate report: safe under reported practices when formulated to be nonirritating.
1, 3

Coconut-derived is not the same as coconut oil

Manufacturing changes the fatty acids into a surfactant. The botanical feedstock does not make the final material equivalent to coconut oil, or prove that it has coconut oil's cosmetic effects.

Cocoyl denotes a distribution of chains, so commercial grades need specifications. That detail is more useful to a formulator than a simplistic natural-versus-synthetic ranking.

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Frequently asked questions

Is it a sulfate surfactant?

It is a taurate surfactant, a different chemistry from sulfate surfactants. That distinction does not by itself establish the irritation potential of a finished wash.1

Can I use it as a taurine supplement?

No. A formulated cleansing surfactant is not dietary taurine; its intended use and chemical identity are different.1

The bottom line

Sodium methyl cocoyl taurate can be a useful cleanser component. Judge the complete formula rather than treating sulfate-free or coconut-derived as a safety guarantee.

References

  1. Safety Assessment of Alkyl Taurate Amides and Taurate Salts as Used in Cosmetics — Final Report. Cosmetic Ingredient Review (2016) · safety assessment
  2. Allergens in Cosmetics. U.S. Food and Drug Administration · government guidance · Undated live resource; accessed October 1, 2026
  3. FDA Authority Over Cosmetics: How Cosmetics Are Not FDA-Approved, but Are FDA-Regulated. U.S. Food and Drug Administration (2013) · government guidance · Page updated August 3, 2013; accessed October 1, 2026

Revision history

  1. Initial AI-assisted evidence compilation with source-linked claims, formulation distinctions and explicit research limitations; not independent medical review.