Ascorbyl Tetraisopalmitate
AKA “183476-82-6, Tetrahexyldecyl ascorbate, Vitamin C tetra-isopalmitate, VC-IP, Oristar THA, Nikkol BV-OSC, BV-OSC, ORISTAR ATIP, NIKKOL VC-IP”
Emollient
Ingredient Facts
Ascorbyl tetraisopalmitate
AKA: 183476-82-6, Tetrahexyldecyl ascorbate, Vitamin C tetra-isopalmitate, VC-IP, Oristar THA, Nikkol BV-OSC, BV-OSC, ORISTAR ATIP, NIKKOL VC-IP
Emollient · Antioxidant · EWG: 1
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
See origin →
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
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Ascorbyl Tetraisopalmitate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ascorbyl Tetraisopalmitate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Tetrahexyldecyl Ascorbate
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Sunscreens and Cosmetic Formulations Containing Ascorbyl Tetraisopalmitate and Rice Peptides for the Improvement of Skin Photoaging: A Double-blind, R
Fossa Shirata MM, Maia Campos PMBG
Photochemistry and photobiology, 2021
Open-label topical application of tetrahexyldecyl ascorbate and acetyl zingerone containing serum improves the appearance of photoaging and uneven pig
Min M, Pérez Damonte SH, Sivamani RK
Journal of cosmetic dermatology, 2024
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR