Skin Conditioning
CALCIUM STARCH ISODODECENYLSUCCINATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A calcium-bridged modified starch (with isododecenylsuccinate groups) used as a soft-focus oil-absorbing powder in makeup. Generally well-tolerated.
Calcium starch isododecenylsuccinate (CAS 194810-88-3) is a modified starch in which hydroxyl groups are esterified with isododecenylsuccinic anhydride and the resulting acid groups are neutralized with calcium. The branched hydrocarbon tails give the starch oil-absorbing and soft-focus properties, while keeping it dispersible in cosmetic formulations. Used in foundations, primers, mattifying powders, and color cosmetics. Modified starches are broadly considered safe in cosmetics; specific public toxicology for this exact chemistry is limited. As with all fine powders, eye and respiratory irritation can occur in loose-powder applications.
Function
Skin benefits
- Absorbs excess sebum
- Provides soft-focus blur effect
- Improves makeup wear and texture
Known concerns
- Possible eye/respiratory irritation as loose powder
- Limited compound-specific public data
- Performance varies with supplier
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related skin conditionings
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.