Tetrahexyldecyl Ascorbate  (THDA)

Tetrahexyldecyl Ascorbate is a stable, oil-soluble form of Vitamin C, used in cosmetics, personal care products, and anti-aging products because of its ability to increase collagen levels, reduce melanin production, brighten skin, and repair the effects of UV exposure and other environmental damage. It is also considered to be more potent than L-ascorbic acid and other Vitamin C compounds, and has a higher rate of penetration (because it is lipid soluble, like human skin) than other derivatives; it also has a higher rate of conversion to Vitamin C within the dermis.


Vitamin C Functions:

Tetrahexyldecyl Ascorbate also has the ability to stimulate the skin to produce glycosaminoglycans, natural moisturizers that allow skin to absorb moisture from the body itself.


Tetrahexyldecyl Ascorbate is considered a mild version of vitamin C, and also remains stable in air and water for up to 18 months, allowing it to serve as a long-lasting antioxidant. Because this ingredient is effective in lower concentrations than traditional Vitamin C,  it has been found to be gentler and work in some people who are resistant to ascorbic acid.


According to a study published in Dermatologic Surgery entitled "Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamage," Tetrahexyldecyl Ascorbate "penetrates directly into the epidermis and dermis, acting both as an antioxidant and a direct stimulant of new collagen," unlike other ascorbic acids, which are released into the stratum corneum and protect the skin only as an antioxidant. Significant improvement was found when patients applied a 7% concentration of Tetrahexyldecyl Ascorbate and saw a decrease in visible photo-aging and increased collagen production, thanks to the delivery and penetration abilities of Dermal Regenerating Serum.

The Benefits of Vitamin C - Tetrahexyldecyl Ascorbate (THDA) for Aging Skin

Vitamin C affects cells on the inside and outside of the body. A recent study published in the American Journal of Clinical Nutrition examined links between nutrient intakes and skin aging in 4,025 women aged 40-74. It found that higher vitamin C intakes were associated with a lower likelihood of a wrinkled appearance, dryness of the skin, and a better skin-aging appearance.

--Vitamin C Benefits, Sources, Supplements, & More - WebMD


Studies Suggest that vitamin C may:

  • Reduce inflammation

  • Reduce the risk of cancer and cardiovascular disease


Lorenol Labs' DAILY REGENERATING SERUM Contains Tetrahexyldecyl Ascorbate (THDA)

  • Tetrahexyldecyl Ascorbate (THDA) is one of the most stable forms of vitamin C. It is much more stable against breakdown than pure Vitamin C. Regular Vitamin C is very unstable and is subject to rapid oxidation and turns yellow in formulations that have water. THDA is much more resistant to oxidation and breakdown.                                                                                                                                                              

  • Considered a mild version of vitamin C, and also remains stable in air and water for up to 18 months, allowing it to serve as a long-lasting antioxidant.                                                                                                                                                                                                                                

  • THDA is oil soluble and moves into the skin with much more efficiency than vitamin C. Its penetration across the skin’s surface is 3 times better than vitamin C. Even at 25 times the concentration; vitamin C does not move across the skin’s surface as well as THDA.  

  • THDA is an excellent antioxidant and like any antioxidant, it binds to and inactivates free radicals. These Free Radicals can cause considerable damage and aging to skin.                                                                                                                                                                                                             

  • Because THDA is oil-soluble, it is easily incorporated into our serum. Regular vitamin C is water soluble and incompatible with non-aqueous serums.                                                                                                                                                                                                                            

  • THDA is excellent for lightening dark spots on the skin and promoting an overall “brighter” skin tone.

--Tetrahexyldecyl Ascorbate --Truth In Aging