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Sodium lauroyl sarcosinate

Sodium lauroyl sarcosinate suppliers and sourcing guide

Sodium lauroyl sarcosinate is an anionic surfactant made by reacting lauric acid chloride (from coconut or palm kernel oil) with sarcosine (N-methylglycine) and neutralizing with sodium hydroxide. It foams well, is used in toothpastes, shampoos and body washes, and is common in sulfate-free formulas. Brands buy it as a roughly 30% aqueous solution or as a high-active powder.

Also known as
Sodium N-lauroyl sarcosinate · Sodium lauroylsarcosinate · N-Methyl-N-(1-oxododecyl)glycine sodium salt · CAS 137-16-6
Facts checked
November 2026

Forms and grades of sodium lauroyl sarcosinate

Suppliers sell different products under the same name. Specify the one you need.

  • Liquid (about 30% active)

    Aqueous solution in drums or totes for shampoos and washes.

  • Powder (about 94% or more active)

    Dry form for toothpastes, powders and solid bars.

  • Pharmaceutical or oral-care grade

    Material made to compendial specifications for toothpaste use.

  • Natural-standard grades

    Coconut-derived grades approved for COSMOS or similar standards.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Active matter
Percent active surfactant by two-phase (Epton) titration or by solids minus salt; it sets how much product a formula needs and is the main lot-to-lot number to record.
Free fatty acid
Free lauric acid by titration against the supplier's limit.
Sodium chloride
Salt content from the reaction, which affects viscosity.
pH
pH of the product as supplied or of a stated dilution (often 10%), which affects viscosity building, preservative choice and stability of the finished product.
Microbiology
Total aerobic count, yeast and mold and specified organisms, particularly for liquid grades.
Heavy metals
Lead, arsenic and other elements by ICP-MS or ICP-OES against the supplier's specification or the applicable USP, FCC or cosmetic-grade limit.

Storage, lots and expiry

Storage and shelf life

Store liquid sarcosinate closed at moderate temperature, away from freezing, and keep powder sealed and dry. Shelf life follows the supplier's specification, with a retest of active matter, pH and micro for older liquid stock.

Lots and expiry dates

Record active matter, pH and salt for each lot. Do not combine with ingredients that can form nitrosamines, and keep the supplier's statement on nitrosamine controls with the lot file. Rotate FIFO.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

  • Health Canada's Natural Health Products Ingredients Database lists sodium lauroylsarcosinate (CAS 137-16-6) for topical use up to 0.9% in leave-on and up to 15% in rinse-off products, citing CIR.

    Source: webprod.hc-sc.gc.ca (opens in a new tab)
  • The same database entry restricts it to buccal, dental or topical use when formulated to be non-irritating and bars its use in products in which N-nitroso compounds can be formed.

    Source: webprod.hc-sc.gc.ca (opens in a new tab)
  • 21 CFR 73.2125 lists sodium N-lauroyl sarcosinate among the substances that potassium sodium copper chlorophyllin may be combined with when used to color dentifrices.

    Source: ecfr.gov (opens in a new tab)

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Sodium lauroyl sarcosinate suppliers

Manufacturers and distributors whose own websites say they sell it.

  • Galaxy Surfactants

    Manufacturer · Navi Mumbai, India

    Indian producer of surfactants and specialty care ingredients, including sulfates, mild amino-acid and glucoside surfactants, emollient esters and UV filters for personal and home care.

  • Innospec

    Manufacturer · Englewood, CO

    US specialty chemicals company whose personal care unit makes surfactants, emollient esters and silicones for shampoos, cleansers and skin care, alongside fuel and industrial chemistries.

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of sodium lauroyl sarcosinate can brands buy?

Common forms include liquid (about 30% active), powder (about 94% or more active), pharmaceutical or oral-care grade and natural-standard grades. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for sodium lauroyl sarcosinate include?

Expect active matter, free fatty acid, sodium chloride, pH, microbiology and heavy metals, each with its method, specification and result for that lot.

How should sodium lauroyl sarcosinate be stored?

Store liquid sarcosinate closed at moderate temperature, away from freezing, and keep powder sealed and dry. Shelf life follows the supplier's specification, with a retest of active matter, pH and micro for older liquid stock.

What is the regulatory status of sodium lauroyl sarcosinate?

Health Canada's Natural Health Products Ingredients Database lists sodium lauroylsarcosinate (CAS 137-16-6) for topical use up to 0.9% in leave-on and up to 15% in rinse-off products, citing CIR. The same database entry restricts it to buccal, dental or topical use when formulated to be non-irritating and bars its use in products in which N-nitroso compounds can be formed. 21 CFR 73.2125 lists sodium N-lauroyl sarcosinate among the substances that potassium sodium copper chlorophyllin may be combined with when used to color dentifrices.

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