The authors theorized that the 10% AA is released slowly from the silicon delivery system and probably stays in the upper layer of the skin to give antioxidant benefits, while THDA penetrates more rapidly and deeply and gives some wrinkle-reducing benefits. We could find Tetrahexyldecyl Ascorbate mentioned only in one published in-vivo study that examined the anti-aging properties of a silicone formula containing 10% AA and 7% THDA. So this all sounds really great, but these are only in-vitro results at this point. Third, THDA seems to have all three magic abilities of pure vitamin C: it gives antioxidant protection from both UVB and UVA rays, it increases collagen synthesis (even more than AA) and it has a skin brightening effect by reducing melanogenesis by more than 80% in human melanoma cell cultures. There is also in-vitro data showing that it converts to AA in the skin.
So great in fact, that it surpasses the penetration of pure vitamin C threefold at the same concentration and it penetrates successfully into the deeper layers of the skin (that is usually important to do some anti-aging work). Second, because it's oil-soluble, its skin penetration abilities seem to be great. First, it is stable (if pH < 5), easy to formulate, and a joy to work with for a cosmetic chemist. With this context in mind let's see what THDA might be able to do. In addition, vitamin C's three magic properties (antioxidant, collagen booster, skin brightener) are all properly proven in-vivo (on real people), but for the derivatives, it's mostly in-vitro studies or in the case of THDA, it's in-vitro and done by an ingredient supplier. It's a really promising candidate (see below), but while reading all the goodness about it in a minute, do not forget that derivatives not only have to be absorbed into the skin but also have to be converted to pure vitamin C (ascorbic acid or AA) and the efficacy of the conversion is often unknown. If you’re going for a dewy appearance, the Ultra Glow All Nighter Setting Spray is your best bet.Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate There is also an Ultra Matte version of the formula, which is ideal for keeping oil and shine under control. The Urban Decay All Nighter Long-Lasting Makeup Setting Spray has a natural finish. Is Urban Decay All Nighter matte or dewy? The ever-popular Urban Decay All Nighter Long-Lasting Makeup Setting Spray is made with patented Temperature Control Technology, allowing it to hold makeup in place for up to 16 hours without smudging or transferring. How long does Urban Decay All Nighter Setting Spray last? Complete with rosy neutrals so you can rock a range of natural looks, Urban Decay’s Pigment Infusion System™ promotes a stronger hold and plenty of impact. The creamy formula offers a smooth application and effortless blending.Īnother best-seller is the Naked3 Eyeshadow Palette. Made to create intense color that lasts, the award-winning 24/7 Glide-On Waterproof Eyeliner Pencil is a must-try. What are Urban Decay's best selling products? Whether you’re aiming to step up your cat eye or add some sparkle, we can help you find the right solution for your needs.
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