AC Gel 5% Benzoyl Peroxide — Reddit Reviews
by Benzac
Updated October 22, 2026
Studies found 5% benzoyl peroxide reduces acne; Reddit reports improvement alongside significant dryness.
What the community says
This 5% benzoyl peroxide gel targets active acne, and studies found fewer pimples, blackheads, and whiteheads over 56 days. Redditors report calmer redness and some improvement, but dryness, recurring breakouts, and delayed reactions make it rough on sensitive skin.
What this means for you
What people love
- 5% benzoyl peroxide; evidence-backed acne reduction
- Redness can look calmer within hours
Watch out for
Product details
Product Traits
Key Ingredients
Skin type data limited
Where to buy
What the science says vs. what Reddit says
Acne
Some evidence
Benzoyl Peroxide: 6 studies tested it on its own. See all 23 studies
On Reddit: Area-by-area use means some apply it only where they have breakouts, skipping it on clear days. 7 mentions
What the studies found
- Most studies found it helped clear acne better than a placebo or no treatment
- Most people had fewer pimples, blackheads and whiteheads with benzoyl peroxide
- Some studies found early improvement, but results were less clear later on
- It worked about as well as a comparison routine in one study
- The most common side effects were more skin irritation and other side effects overall
Studied at 2.5–5%this product: 5%
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 15 mentions across 9 threads
Benzac AC Gel 5% Benzoyl Peroxide on Reddit, in one place — 9 threads from r/tretinoin, r/AsianBeauty and 2 more, summarized.
“Benzac 5% (applied to areas where I have acne, but I skip this if I don’t have acne that day)”
Positive
“I started using benzac and the biosulfur soap the same time with the tret”
Positive
“did you start Sulphur+ Benzac and Azelaic acid the same time as tret”
Positive
“It only pilled with Benzac AC, but with other products, it layers well.”
Cautionary
“The Airy Hold Cream is definitely not greasy but doesn’t dry down like a matte milk sunscreen.”
Cautionary
“Would I repurchase? Absolutely!”
Cautionary
“Benzac gel (benzoyl peroxide): used it for over 4 months.”
Cautionary
“It helped a little, but the pimples kept coming back, so I stopped.”
Cautionary
“I’ve had recurring pimples around my mouth for a long time.”
Cautionary
“- Benzac 5% either leave on all night OR take off after 2 hours and - Hydrocolloid bandage overnight”
Positive
“They do seem way less inflamed a few hours after using the benzac but overall have got worse since I started it.”
Positive
“I don’t know which is best?”
Positive
“Tuesday: Cleanser, Niacinamide, Moisturizer, Clindamycin, Benzoyl Peroxide”
Positive
“Friday: Cleanser, Niacinamide, Moisturizer, Clindamycin, Benzoyl Peroxide (Same as Tuesday)”
Positive
“Benzoyl Peroxide - Benzac Ac Gel 5%”
Positive
“Try using Benzoyl Peroxide (2.5%) OTC products like Benzac AC.”
Mentioned
“Only recently, I have started having some struggles with acne,”
Mentioned
“I had a pimple on my forehead that I couldn't keep my hands away from.”
Mentioned
