Betulin ●
TL;DR. This ingredient is mainly used as a skin-conditioning and soothing active, often positioned for barrier support and comfort in creams, balms, and after-sun products. It can also help structure water-in-oil systems because of its waxy, lipophilic character.
What does Betulin do in a cosmetic formula?
This ingredient is mainly used as a skin-conditioning and soothing active, often positioned for barrier support and comfort in creams, balms, and after-sun products. It can also help structure water-in-oil systems because of its waxy, lipophilic character.
Is Betulin clean?
This ingredient has a favorable clean-beauty profile, with low sensitization concern and little restricted-list friction. The main formulation caveat is not safety controversy, but its very low water solubility, which affects how evenly it can be delivered in a formula.
Is Betulin sustainable?
This material is commonly sourced from birch bark, often as a forestry byproduct, which gives it a strong renewable-feedstock story when harvesting is responsibly managed. It is a natural, carbon-rich plant molecule and is not associated with the same persistence concerns as silicone fluids or fluorinated materials.
Is Betulin COSMOS-approved?
This ingredient can be compatible with COSMOS-natural and COSMOS-organic products when sourced from plant material and processed with approved extraction or purification methods. It fits Green Chemistry best when recovered from bark byproducts using lower-impact solvents and minimal derivatization.
How does Betulin work chemically?
The molecule is a pentacyclic triterpene diol, highly lipophilic, crystalline, and essentially insoluble in water, so it is usually dispersed or solubilized in oil phases, alcohol systems, or structured emulsions. Typical cosmetic use is at low active levels, often below 1%, while higher levels may be used when it is serving a structuring or stabilizing role in anhydrous or water-in-oil formats.
Last updated 2026-05-13