All TCA are different! Best one to use is of course ours as it is made with
Prepeel cream has to be used by the patient at home.
Usually it has to been applied on the facial skin 7 days before lipoic acid.
In case of oily skin, it has to been use 15 days before applying lipoic acid.
In case of not severe acnes, just PrePeel and Lipoic Acid , even without TCA are enough to get excellent results.
Lipoic Acid is considered normally as the best acid to help for penetration of all other ingredients. In the case of acne, it has to be applied during 2 weeks each day after a pre treatment of pre peel ( 1 to 2 weeks daily).