You may have heard of willow bark when researching hydroxy acids like salicylic acid, that’s because black willow bark is essentially one of the best-known plant sources of salicylic acid.
The number one mistake many of us make is skipping exfoliation when it comes to our skin care routine. Meet mandelic acid. Mandelic acid is a chemical exfoliant that tends to be gentler on the skin but what does it do?