Since the mandelic acid molecules are bigger than the ones of other AHA (Alpha hydroxy acid) used in chemical peelings, it goes through the skin more slowly and less deeply. Therefore, mandelic acid is less harsh and bett­ter tolerated by everyone. As a result, there is less overall irritation when compared with other AHA, which is beneficial for those who have sen­sitive skin that is prone to inflammation.
Mandelic acid has an antibacterial effect on the skin, which makes it a viable choice for those with acne-prone skin who want to have a che­mical peel but are worried about clogged pores and irritation as a result.