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Pure Actives
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Pure Actives' Tetrahexyldecyl Ascorbate (THDA) is a stable, oil-soluble ester of Vitamin C at ≥98% purity, engineered to overcome the key limitations of conventional L-Ascorbic Acid in cosmetic formulations. Unlike water-soluble Vitamin C derivatives, THDA is lipophilic and readily penetrates the stratum corneum's lipid-rich environment, enabling superior dermal delivery of bioavailable Vitamin C. Once absorbed, THDA is enzymatically converted to L-Ascorbic Acid within the skin, where it exerts potent antioxidant, melanogenesis-inhibiting, and collagen-stimulating effects. Its exceptional oxidative stability makes it ideal for formulations requiring long shelf life without the discolouration issues associated with unstable Vitamin C forms.
This ingredient is intended for cosmetic use only. Not for internal consumption. Always conduct a patch test before use in finished formulations.
Add to the oil phase of your formulation at 0.5–3.0%. As a clear oil, THDA blends easily into carrier oils, emollients, and anhydrous formulations. Compatible with most cosmetic actives and suitable for use alongside retinoids, peptides, and AHAs. Suitable for brightening serums, anti-aging facial oils, dark spot treatments, vitamin C moisturizers, and photoprotective formulations.
Store in a cool, dark place away from direct sunlight, heat, and moisture. Keep container tightly sealed when not in use. MFG: JUL 2026 | EXP: JUL 2028
INCI: Tetrahexyldecyl Ascorbate
CAS: 183476-82-6
Molecular Formula: C26H52O5
Molecular Weight: 444.69 g/mol
Purity: ≥98%
Appearance: Clear to Pale Yellow Oil
Solubility: Oil Soluble (Dispersible in Oil)
Grade: Cosmetic Grade
Origin: Synthetic
Country of Origin: China
Recommended Use: 0.5–3.0%
Phase: Oil Phase
COA: https://cdn.shopify.com/s/files/1/0598/4154/4291/files/Pure_Actives_COA_Tetrahexyldecyl_Ascorbate_July_2026.pdf?v=1787874678
SDS: https://cdn.shopify.com/s/files/1/0598/4154/4291/files/Pure_Actives_SDS_Tetrahexyldecyl_Ascorbate_July_2026.pdf?v=1787874678
TDS: https://cdn.shopify.com/s/files/1/0598/4154/4291/files/Pure_Actives_TDS_Tetrahexyldecyl_Ascorbate_July_2026.pdf?v=1787874678
I formulated a beautiful Mangosteen & Astaxanthin glaze with it! Perfect addition, and gentle enough for sensitive skin.
A hard to find, specialty ingredient that adds natural silkiness to any formulation!
Good Material. I used it for my Skin Care Formulation, and blends well with other materials.
Great
Using this in my DIY oil-based lotion to make it less greasy and it really does do the job intended for! Happy with the purchase
Good Material. I used it for my Skin Care Formulation, and blends well with other materials.
Using this in my DIY oil-based lotion to make it less greasy and it really does do the job intended for! Happy with the purchase
Using it in my DIY lotion and so far so good! I like the smell and consistency.
Looked everywhere for powder, not liquid. Love it!
