At a glance
- CAS number
- 137-16-6
- INCI name
- Sodium Lauroyl Sarcosinate
- Function
- surfactant, cleansing, foaming agent, conditioning
- Typical use level
- 0.5%–15%
- Solubility
- water
- Stable pH
- 4.5–8.5
CAS number and synonyms are sourced from PubChem. Function, usage levels, pH and compatibility are AI-assisted formulation guidance — verify against your supplier's technical data sheet and applicable regulations before use.
Also known as
Sarcosyl L Lauroyl Sarcosine Sodium Salt N-Lauroylsarcosine Sodium Salt Sodium N-Lauroylsarcosinate Crodasinic LS35
Compatibility
Works well with:
Cocamidopropyl Betaine Sodium Cocoyl Isethionate Glycerin Panthenol Sodium Lauryl Sulfoacetate Disodium Laureth Sulfosuccinate
Use caution with:
Cationic surfactants High concentrations of polyquaternium compounds
Sodium Lauroyl Sarcosinate is an anionic surfactant and may form complexes or precipitates when combined with cationic surfactants or high-charge-density quaternary compounds. It blends well with other mild anionics and amphoteric surfactants such as betaines, which can also boost foam quality. It is generally compatible with nonionic ingredients and common conditioning actives within a typical wash-off formulation pH range.
Formulation notes
Sodium Lauroyl Sarcosinate is a mild amino-acid-derived anionic surfactant prized for its excellent skin and eye tolerability compared to sulfate-based cleansers. It provides good foaming, conditioning feel, and has demonstrated some anti-caries efficacy, making it popular in toothpastes as well as facial cleansers, shampoos, and shave preparations. It is biodegradable and considered non-irritating at recommended use levels, though formulations should stay within its stable pH window to prevent hydrolysis of the sarcosinate bond.
Frequently asked questions
What is Sodium Lauroyl Sarcosinate?
Sodium Lauroyl Sarcosinate is a surfactant, cleansing, foaming agent, conditioning used in cosmetic and personal-care formulation. Typical use level is 0.5%–15%. It is water-soluble. Stable in the pH 4.5–8.5 range.
What is Sodium Lauroyl Sarcosinate used for?
Sodium Lauroyl Sarcosinate is used as surfactant, cleansing, foaming agent, conditioning in cosmetic and personal-care formulations.
What is the typical use level of Sodium Lauroyl Sarcosinate?
Sodium Lauroyl Sarcosinate is typically used at 0.5%–15% in the finished formulation. Always confirm against your supplier's technical data sheet.
What is the CAS number of Sodium Lauroyl Sarcosinate?
The CAS registry number for Sodium Lauroyl Sarcosinate is 137-16-6. Its INCI name is Sodium Lauroyl Sarcosinate.
At what pH is Sodium Lauroyl Sarcosinate stable?
Sodium Lauroyl Sarcosinate is generally stable in the pH 4.5–8.5 range.
What ingredients are compatible with Sodium Lauroyl Sarcosinate?
Sodium Lauroyl Sarcosinate works well with Cocamidopropyl Betaine, Sodium Cocoyl Isethionate, Glycerin, Panthenol, Sodium Lauryl Sulfoacetate, Disodium Laureth Sulfosuccinate. Use caution when combining it with Cationic surfactants, High concentrations of polyquaternium compounds.
Related ingredients
- Coco-GlucosideSurfactant
- Lauryl GlucosideSurfactant
- Sodium Lauryl SulfateSurfactant
- Sodium Cocoyl GlutamateSurfactant
- Sodium Laureth SulfateSurfactant
- Behenyl PEG/PPG-20/20 DimethiconeEmulsifier