02 · WHAT WE FOUND — THE RECEIPTS
INCIBenzoyl Peroxide 10% (declared active (top)) — Legitimate active for the category; 10% rinse-off is the highest OTC strength, not automatically the best first choice for sensitive facial skin
INCIFoaming cleanser base (surfactant system, undisclosed inactives) (inactive carrier) — Practical wash format; contact time and frequency drive tolerability
INCIBenzoyl peroxide oxidative property (active behavior) — Can bleach towels, clothing, and pillowcases on contact
INCIConcentration discipline (10% vs lower-strength siblings) (use-pattern variable) — Lower-strength or shorter-contact options exist when tolerability matters more than maximum percentage
MATHBenzoyl peroxide 10% is the maximum strength available without a prescription and sits within the FDA OTC acne-drug allowed range. The label's '99% in 15 seconds' is a brand antibacterial claim citing data-on-file, not an independently verified figure here. The honest math is that for a rinse-off wash, contact time is short, so a higher percentage is not automatically more effective and does raise dryness and irritation risk; the relevant variable is tolerability over time, not the headline number.
CITEPanOxyl official product page · brand cites independent lab/data-on-file for bacteria kill claim
CITEAmerican Academy of Dermatology benzoyl peroxide guidance · derm organization guidance
CONSDermatology consensus supports benzoyl peroxide as an established OTC active for acne-care, while stressing that dryness and irritation often drive the real-world choice of strength. The highest percentage is not always the smartest percentage, especially on the face, and step-down to a lower strength is a normal and reasonable move.