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Effaclar BPO Multi-Target Acne Treatment with 5.5% Benzoyl Peroxide

Acne Spot Treatment

Effaclar BPO Multi-Target Acne Treatment with 5.5% Benzoyl Peroxide — Reddit Reviews

by La Roche-Posay

Not enough verdicts yetSee the Reddit discussion

Updated November 10, 2026

Studies support 5.5% benzoyl peroxide for acne; Reddit threads offer limited firsthand verdict.

What the community says

Backed by 23 studies

A 5.5% benzoyl peroxide leave-on for mild-to-moderate acne, with studies finding topical benzoyl peroxide beats placebo. Redditors discuss nightly or alternate-night use; research also found side effects were more common, so people sensitive to side effects should skip it.

From Reddit

Backed by 2 threads from r/SkincareAddiction.

Read the threads ↓

What people love

  • 5.5% leave-on benzoyl peroxide; the active Redditors keep asking about
  • Research-backed acne active; beat placebo in a large review

Product details

Concerns

Product Traits

Key Ingredients

Based on limited Reddit discussion so far

What the science says

Benzoyl peroxide has some evidence for helping acne, as most of its 23 studies found it cleared breakouts better than a placebo or no treatment 1. It often reduced pimples, blackheads and whiteheads in mild to moderate acne, though some studies found early gains that were mixed by the end 1. In one study it performed about as well as a comparison routine, and side effects were more common overall, though the most common ones were not listed 1.

  1. Benzoyl Peroxide for acne Some evidence · 23 studies

Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.

How we grade research

Full ingredient list · 17

La Roche-Posay Effaclar BPO Multi-Target Acne Treatment with 5.5% Benzoyl Peroxide ingredients

Benzoyl Peroxide, Water, Glycerin, Pentylene Glycol, Carbomer, Silica, Tocopheryl Acetate, Sodium Citrate, Sodium Hydroxide, Sodium Metabisulfite, Diethylhexyl Sodium Sulfosuccinate, Phenoxyethanol, Epilobium Angustifolium Flower/Leaf/Stem Extract, Propanediol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Disodium EDTA, Potassium Hydroxide

Listed in label order, highest concentration first. Linked ingredients have their own page.

Real Reddit threads — 3 mentions across 2 threads

La Roche-Posay Effaclar BPO Multi-Target Acne Treatment with 5.5% Benzoyl Peroxide on Reddit, in one place — 2 threads from r/SkincareAddiction, summarized.

“Has anyone found any success with the La Roche-Posay Effaclar BPO (5.5% Benzoyl Peroxide)?”

Mentioned

“Anyone tried the new La Roche Posay Effaclar BPO Acne Treatment with 5.5% Benzoyl Peroxide?”

Mentioned

“I recently discovered the new La Roche Posay Effaclar BPO Acne Treatment with 5.5% Benzoyl Peroxide online”

Mentioned

“I was wondering if anyone has had any luck with it?”

Mentioned

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