Okay, I liked the idea of a "C" powder, but I'm NOT going to get it because ....
According to "newbeauty.com/blog": Quote
"Don’t mix vitamin C with:
1. Alphahydroxy Acids (AHAs): Overloading your skin with too many acid based-ingredients (both vitamin C and AHAs are acid-based) increases your chances of redness, peeling and irritation. “Some AHAs even come with instructions to wash it off after a certain amount of time so that the skin can accommodate and tolerate it,” says Miami dermatologist Loretta Ciraldo, MD.
2. Copper Peptides: Copper peptides help to encourage elastin and collagen formation, making it necessary for wound healing. But when used with vitamin C, the effects of each are cancelled out, rendering the benefits useless.
3. Retinol: Many experts will say that super-strength concentrations of vitamin C and retinol shouldn’t be applied to the skin together, or only with extreme caution, since both are very powerful and can cause the skin to become dry. However, there are some topical products that contain both ingredients, but chances are they contain low concentrations of each, making them safe to use.
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