Choleth-24
INCI: CHOLETH-24
Reviewed by Emma · Last updated 14 Aug 2026
A gentle emulsifier that helps bind water and oil-based ingredients in skincare formulations
Best For Skin Types
All
Usage Frequency
Daily
What Is Choleth-24?
Choleth-24 is a synthetic emulsifier derived from cholesterol. It belongs to a class of ingredients called surfactants, which have a molecular structure that allows them to bridge water and oil — two substances that don't naturally mix. This makes it useful in cosmetic formulations where multiple different ingredients need to be combined into a stable product.
In skincare, Choleth-24 helps create smooth textures and ensures that the various components of a formula remain evenly distributed rather than separating over time. It appears in a small proportion of skincare products, typically at low concentrations.
How It Works
Choleth-24 works through its amphiphilic structure — one end of the molecule is attracted to water while the other is attracted to oils. When added to a formulation, these molecules position themselves at the interface between water and oil phases, reducing tension and allowing them to mix into a stable emulsion.
By stabilising the overall formulation, Choleth-24 helps ensure that other beneficial ingredients remain suspended and available for delivery to the skin, rather than settling or degrading.
Clinical Evidence & References
Research into cholesterol-derived lipid systems suggests they may support skin barrier function and enhance penetration of active ingredients through their interaction with the stratum corneum. However, specific clinical studies focusing solely on Choleth-24's efficacy in skincare products are limited in published literature.
The ingredient is primarily valued for its functional role as an emulsifier rather than for direct therapeutic effects on skin. Its safety and effectiveness in formulations have been established through cosmetic ingredient databases and regulatory approvals, but consumer-level efficacy data remains sparse.
Published Research
How to Use
Choleth-24 is a background ingredient that requires no special usage instructions from the consumer. It works within the formulation itself, so you simply use the product as directed by the manufacturer. Its presence should not change how you apply or layer your skincare routine.
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
Ceteth-3
An emulsifying agent that helps blend oil and water-based ingredients in formulations
Cetyl Glyceryl Ether/Glycerin Copolymer
A synthetic emulsifier that helps bind water and oil phases in skincare formulations
Cetyl Phosphate
An emulsifying agent that helps create stable, well-textured skincare formulations
Citrus Aurantium Sinensis Fiber
A plant-derived stabiliser that helps emulsions maintain their texture and consistency
Cocamide DEA
A coconut-derived surfactant that stabilises formulations and enhances texture
Cocamide Mea
A coconut-derived surfactant that stabilises formulations and creates a light, pleasant texture
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.