How do the anti-aging ingredients in Green Cream and Skinceuticals 0.5 compare?
Green Cream Level 3 contains a fairly high concentration of vitamin E as tocopheryl acetate, which has a higher environmental protection factor (a measure of antioxidant capacity) than most, but not all, other antioxidants. Green Cream Levels 6 and 9 also contain vitamin E, although in less high concentrations. To soothe (retinol can be irritating), Green Cream contains a high concentration of soothing aloe vera gel and cucumber extract in all levels. On the other hand, Skinceuticals 0.5 does not contain anti-aging vitamin E, but instead contains ceramides 2 and 3. An article in the International Journal of Cosmetic Science reports that ceramides replenish reduced ceramide levels (particularly the phytosphingosine-containing ceramides) and levels of long-chain fatty acids in dry skin. However, according to this 2000 study by the same author, it was found that moisturizers incorporating ceramide 3 had no greater effect on transepidermal water loss (TEWL) than ordinary lotions without ce
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