05/28/2026
That tube of topical acne gel? In addition to the active ingredient it can contain up to 90% denatured alcohol.
The “active” ingredient is what’s doing the work - tretinoin, adapalene, clindamycin, benzoyl peroxide. Everything else is the vehicle. The base. The stuff carrying the medication into your skin.
And that stuff matters more than most people think.
A few to know:
→ denatured alcohol — effective, but brutal on a teenage skin barrier.
→ polyoxyl stearate (PEG) — emulsifier can be irritating
That tube of topical acne gel? In addition to the active ingredient it can contagion up to 90% denatured alcohol.
The “active” ingredient is what’s doing the work - tretinoin, adapalene, clindamycin, benzoyl peroxide. Everything else is the vehicle. The stuff carrying the medication into your skin.
And that stuff matters more than most people think or consider.
A few to know:
→ denatured alcohol — Effective, but brutal on a teenage skin barrier.
→ propylene glycol — common solvent, alcohol based, can be irritating
→ methylparaben — preservative
→ BHA /BHT- antioxidant/preservative
→ fragrance + dyes — often found in OTC acne washes
If a treatment “should” be working and it somehow feels worse - peeling, red, breaking out in new places - the medication isn’t always the problem. Sometimes it’s everything around it.
Comment DERM for my top questions to bring up at your next appointment.
livefreeskincare
