I am 59 years old and have fairly good skin except for being oily.
I do have some wrinkles so I decided to begin using some recommended serums. I purchased vitamin C serum and a alphahydroxy acid serum. Within days, on certain places on my face and under my chin, I developed what looks like acne! It seems to be just in a few areas. Which serum could be causing this? I discontinued both. Now I am waiting for it to heal. Any advice? Thanks in advance.