Subtilisin is a proteolytic enzyme produced by Bacillus species through biotechnology. In skincare, it works as a pH-dependent enzymatic exfoliant, loosening protein-rich surface buildup to leave rinse-off masks and cleansers feeling smoother.
An enzyme that gently dissolves buildup for smoother-feeling skin.
Category
Exfoliating, Tone/Texture
Type
Exfoliant
Ingredient Ratings
Overall Rating
Fair
Comedogenic Risk
None
Skin Benefits
It gently refines roughness to reveal a more polished, even-feeling complexion with minimal mechanical rubbing, though evidence for long-term skin benefits in leave-on products is limited.
Uses In Skincare & Cosmetics
It's often included in enzyme peels, exfoliating gels, and powder-to-foam treatments that are rinsed after short contact.
Comedogenic Rating
This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.
Safety
It may cause stinging, redness, or tightness, especially on sensitive or compromised skin and around the eyes; rinse-off use typically lowers this risk. Patch test if you're reactive and avoid using it alongside other strong exfoliants.
Is Subtilisin a Good Ingredient?
It rates Fair because its enzymatic exfoliation can smooth texture in short-contact formulas, but strong clinical data for leave-on benefits are limited. As a protease, it may also irritate or disrupt the barrier if overused or at unsuitable pH.