Despite not being as common as some ingredients, azelaic acid is definitely worth swotting up on. This is what you need to know. It’s one that’s becoming increasingly popular after years of ...

Lactic Acid: A mild AHA that gently exfoliates the skin without irritating it. It’s a good alternative to stronger acids like ...

Its main ingredient is azelaic acid, another key ingredient on Ibrahim’s list. Azelaic acid is known for being effective against melasma, eczema, and acne, which makes this product a great pick ...

Sofie Pavitt is NYC's acne whisperer, and her award-winning mandelic acid serum is a must-try if you're dealing with clogged pores or acne. The Cosmo beauty team is collectively obsessed with how well ...