TCA is a very good tool for facial tightening. However, the medical concentrations (15-35%or more) need be done with physician supervision (it could depends on your state rules). I would recommend that you have a consult with a plastic surgeon or a dermatologist that can tell you if you are a good candidate for this procedure.
Side effect could include hyper or hypo pigmentation as well as scarring. My advice would be to use an over the counter skin product with lesser concentration until you can see a specialist.

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