Peter Thomas Roth Goodbye Acne ™ Aha/Bha Acne Clearing Gel is a deep pore-clearing face, body and spot treatment that contains maximum-strength 2% Salicylic Acid (Bha) and a 10% Glycolic Acid Complex (Aha). 2% Salicylic Acid clears up and helps prevent acne, while a potent 10% Glycolic Acid Complex helps reduce the look of uneven skin tone and texture.