Beheneth-30
INCI: BEHENETH-30
Reviewed by Emma · Last updated 14 Aug 2026
A gentle surfactant derived from plant oils, used primarily in cleansing formulations
Best For Skin Types
All, Oily, Combination, Sensitive
Addresses
Usage Frequency
Daily
What Is Beheneth-30?
Beheneth-30 is a surfactant derived from behenic acid, a naturally occurring fatty acid found in plant oils such as rapeseed and mustard seed oil. In skincare formulations, it functions as a cleansing agent and emulsifier, helping to break down oils and dirt whilst allowing water and oil-based ingredients to mix effectively.
As a mild, plant-derived surfactant, Beheneth-30 is designed to cleanse without heavily disrupting the skin's natural protective barrier. It appears in a relatively small proportion of skincare products, typically used in cleansers and formulations where gentle yet effective cleansing is the goal.
How It Works
Beheneth-30 is a surfactant, meaning its molecular structure has both water-loving and oil-loving regions. When applied to skin, these molecules position themselves at the interface between oils and water, effectively surrounding oily substances and allowing them to be rinsed away with water. This makes it particularly useful in cleansing products where the removal of sebum and lipophilic dirt is important.
In formulations, Beheneth-30 also stabilises mixtures of ingredients that would otherwise separate, such as oils and water-based extracts. This emulsifying function ensures consistent texture and performance throughout the product's shelf life.
Clinical Evidence & References
Research into skin ageing and barrier function emphasises the importance of gentle cleansing that preserves the skin's lipid barrier and protective mechanisms. A compromised barrier function can impair skin's ability to maintain hydration and defend against external irritants. Plant-derived surfactants like Beheneth-30 are formulated with this principle in mind, though direct clinical studies specifically comparing Beheneth-30 to other surfactants are limited in publicly available literature.
Beheneth-30's plant origin and mild chemical profile suggest a lower irritation potential compared to harsher synthetic surfactants, but individual skin response varies. Evidence supporting its specific efficacy and safety in skincare remains modest, so it is best considered as one component of a well-formulated cleanser rather than an active treatment ingredient.
How to Use
Beheneth-30 is typically encountered in cleansing products rather than leave-on treatments. Use as directed by the specific product formulation — usually as part of your daily or twice-daily cleanse, depending on skin type and the product instructions. Ensure thorough rinsing with lukewarm water to remove all traces of the cleanser.
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 quizOther forms of Beheneth-30
These appear on ingredients lists under different names but are the same substance. Beheneth-30 is the common form.
Related Ingredients
Beheneth-20
Type of synthetic polymer
Avocado Oil Polyglyceryl-6 Esters
A plant-derived emollient and emulsifier derived from avocado oil
Behenamidopropyl Dimethylamine
A conditioning agent that reduces static and helps emulsify formulations
Behenic Acid
A saturated fatty acid primarily used as a thickener and opacifying agent | Sometimes used as a replacement for the lighter-weight ingredient stearic acid
Behenyl Pg-Trimonium Chloride
A conditioning agent that helps stabilise formulations and improve texture
Bis-Ethoxydiglycol Cyclohexane 1,4-Dicarboxylate
A multifunctional conditioning agent that supports skin hydration and 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.