Contains salicylic acid, a BHA which is drying. However is used on specific spots.

Not really sure I see a need for this, only two ingredients one of which is very prevalent in many other skincare, the other of which is a little known (to me) antioxidant, again well represented elsewhere in my routine

Contains a retinoid

Mandelic acid is an AHA

Contains citric acid, which is an AHA

Contain citric acid, which is an AHA

Contains citric acid, which is an AHA

Contains citric acid, which is an AHA

Contains Phytic acid, which is an AHA

Contains glycolic acid and lactic acid, both AHAs

Contains salicylic acid, a BHA which is drying