An innovative way to eliminate acne on contact: Peter Thomas Roth Acne Clear Invisible Dots. These inconspicuous adhesive patches are infused with concentrated 0.5% Salicylic Acid that works overnight and throughout the day to reduce and heal pimples for a clearer, calmer complexion.. Tea Tree Oil helps refresh and tone the skin. Hyaluronic Acid prevents drying by attracting moisture from the air. Two custom sizes allow for complete coverage of acne spots. 72 clear dots. Apply to clean, dry skin on an individual blemish; gently press adhesive side over blemish and press edges to secure. Leave in place throughout the day or night. Do not apply makeup or topical product over the patch. PTHO-WU16. 17 01 003.