Ascorbyl Tetraisopalmitate
molecular structure · PubChem
AKA: 183476-82-6, Tetrahexyldecyl ascorbate, Vitamin C tetra-isopalmitate, VC-IP, Oristar THA, Nikkol BV-OSC, BV-OSC, ORISTAR ATIP, NIKKOL VC-IP
Synthetic
Antioxidant
Emollient
Skin Conditioner
Vitamin C
Clean
L-ascorbic acid, tetraisohexadecanoate
Formula
C70H128O10
Mol. Weight
1129.80
CAS #
161436-56-2, 183476-82-6
Form
Liquid
Functions
Antioxidant
Fights free radicals — the unstable molecules from UV, pollution, and stress that break down collagen and cause premature aging.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
A highly lipophilic vitamin C ester developed for improved stability and penetration in oil-based cosmetics, designed to overcome the oxidation issues of unmodified vitamin C.
Skin Types
●all-skin-types, gentle
Best For
Sun Damage
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR