Sarcothalia Crispata
INCI: SARCOTHALIA CRISPATA
Reviewed by Rosie · Last updated 2 Jun 2026
A marine-derived surfactant and cleansing agent from red algae
Best For Skin Types
All, Oily, Combination
Addresses
Usage Frequency
Daily
What Is Sarcothalia Crispata?
Sarcothalia crispata is a red algae species harvested from marine environments, commonly used in cosmetic formulations for its cleansing properties. When processed for skincare use, it functions as a surfactant — a compound that helps to lift oils, dirt and makeup from the skin's surface by reducing the surface tension between water and sebum.
In skincare products, this ingredient typically appears in cleansers, where it helps to emulsify and remove impurities without necessarily stripping the skin entirely, depending on formulation and concentration.
How It Works
As a surfactant, Sarcothalia crispata molecules have one end that is water-loving and one that is oil-loving. This dual nature allows them to surround oily particles and suspend them in water, enabling them to be rinsed away during cleansing. This mechanism makes it particularly useful in cleansing products where thorough removal of sebum and makeup is desired.
Clinical Evidence & References
Research specific to Sarcothalia crispata in skincare remains limited in the published literature. However, red algae-derived ingredients have been studied for their potential skin benefits, including mild cleansing properties and tolerability. Most evidence for this ingredient derives from its use in formulated products rather than standalone clinical trials.
Further research would help establish its efficacy relative to other marine-derived and synthetic surfactants, and to clarify any additional skin benefits beyond cleansing.
How to Use
This ingredient is most commonly encountered in cleansing products. Use as directed on the product label — typically as part of a daily or twice-daily cleansing routine. Rinse thoroughly with water after application to ensure complete removal of the cleanser and any suspended impurities.
Safety & Precautions
Frequently Asked Questions
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
Rice Oil Glycereth-8 Esters
A plant-derived cleansing agent that removes oil and impurities without stripping the skin
Salvia Officinalis Leaf Extract
A herb-derived extract with antioxidant and soothing potential for skin-comforting and skin resilience
Sanguisorba Officinalis Root Extract
A plant extract traditionally used to tone and refresh the skin
Shea Butteramidopropyl Betaine
A plant-derived surfactant that cleanses while maintaining skin's natural moisture balance
Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Versatile synthetic copolymer used as a dispersing agent and thickener | Helps form stable emulsions
Sodium C12-14 Olefin Sulfonate
A synthetic surfactant that cleanses and creates lather in rinse-off products
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.