INCI: Tetrahexyldecyl Ascorbate
Oil-soluble vitamin C for brighter, more even-looking skin and antioxidant support.
What Is THD Vitamin C?
THD Vitamin C, or Tetrahexyldecyl Ascorbate, is an oil-soluble derivative of vitamin C used in advanced skincare formulations. Unlike water-soluble forms of vitamin C, THD Vitamin C is compatible with lipid-based formulas, making it particularly well suited to facial oils, serum-oils, creams, and other nourishing treatments.
Its oil-soluble nature also allows formulators to combine vitamin C with botanical oils, emollients, and other lipid-compatible skincare ingredients in elegant treatment formulas.
Benefits
THD Vitamin C helps support a brighter, more even-looking complexion while addressing the visible appearance of dullness and uneven tone. It also provides antioxidant support against the visible effects of environmental stress.
In age-supportive skincare, it is often selected for formulas designed to promote radiance, smoother-looking texture, and an overall more refined appearance.
Why We Use THD Vitamin C
Pure Intox uses THD Vitamin C when an oil-compatible vitamin C ingredient is particularly well suited to the structure and purpose of a formula. It complements nourishing botanical oils without requiring a water-based delivery system.
This makes it especially useful in treatment-focused serum-oils where antioxidant support, visible radiance, and skin-conditioning benefits are intended to work together.
Sourcing & Quality
We select cosmetic-grade Tetrahexyldecyl Ascorbate for purity, stability, and compatibility with oil-based skincare formulations. Careful handling during formulation and packaging helps protect ingredient integrity from unnecessary exposure to excessive heat, light, and air.
Found In Pure Intox Rituals
THD Vitamin C is featured in:

