Science
Mechanism of Action
SAIB operates by forming a stable, non-yellowing film on the skin's surface. This film acts as a modifying extender for other film formers, improving their adhesion to the skin and enhancing the overall water resistance of the cosmetic application. As a plasticizer, it imparts flexibility to formulations, preventing cracking or flaking, and additionally stabilizes emulsions.
Research
Clinical Evidence
Low confidence15%
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Sucrose Acetate Isobutyrate is a thermally stable, low-odor liquid resistant to yellowing and UV light degradation. It exhibits excellent hydrolytic stability, is not easily hydrolyzed, and maintains its color integrity. Although highly viscous at 100% concentration, it is available in lower-viscosity blends for easier handling.
Synergies
- silicones
- polymers
- resins
- oils
- waxes
Safety
Safety Profile
Sucrose Acetate Isobutyrate holds a Generally Recognized As Safe (GRAS) status from the U.S. FDA for use as a food additive (up to 300 mg/kg in nonalcoholic beverages). In cosmetic applications, safety assessments, including animal studies, indicate it is generally non-irritating to skin. The Cosmetic Ingredient Review (CIR) lists SAIB as a cosmetic ingredient, and EWG rates concerns for cancer, allergies, developmental toxicity, and use restrictions as LOW.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sucrose Acetate Isobutyrate is a valuable ingredient for enhancing cosmetic product performance by improving wear, water resistance, and finish, though its direct clinical efficacy for fundamental skincare concerns remains unsubstantiated.
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References
Sources