Whether you’re a skin care pro or a curious beginner ... $12.79 $15.99 Amazon Alpha hydroxy acids, or AHAs, are water-soluble acids derived from fruits and plants (more on that below).

But one AHA you may not be too familiar with ... Citric acid is a classically used alpha-hydroxy acid in skin-care products. AHAs are natural acids derived from foods, so citric acid is extracted ...

After confiscating the offending acid and replacing it with a bottle of Alpha ... skin healthy and protected from photo-ageing.” The king of the AHAs. As glycolic acid is the smallest AHA ...

Toners can offer a variety of benefits, such as reducing inflammation, tightening pores, and providing additional hydration. Depending on the ingredients, toners can also address specific skin ...