Verified Beauty Data

Dupe report Nº 023 / Adapalene 0.1% gels

La Roche-Posay Effaclar Adapalene Gel dupes, ranked by formula match

Updated

Adapalene 0.1% is an FDA-fixed drug strength. Differin has the identical 0.1% for $19.19 instead of $39.99.

02 / The scoreboard

3 formulas, one number that matters

Read the actives column first — it is the apples-to-apples comparison. $ per gram of active is what the working ingredients cost you; the base-formula score is supporting evidence, not the verdict.

Product Actives vs original $ / g of active Price Base formula Verdict
La Roche-Posay Effaclar Adapalene Gel 0.1% Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel $888.67 $39.99 45 mL · Amazon 100% the reference The original
Exact disclosed active the direct clones — same actives, same percentages
Differin Adapalene Gel 0.1% Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel $426.44 $19.19 45 mL · Amazon 95% highest measured The winner Amazon →
Acne Free Adapalene Gel 0.1% Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel $664.67 $9.97 15 mL · Amazon 95% Best budget Amazon →

✓ same % as original ≠ different % ? in formula, % undisclosed — not in formula

03 / The original

Why the original is the original

Adapalene 0.1% is an FDA-approved over-the-counter drug (Differin switched from prescription in 2016) — the active and its exact concentration are fixed by federal regulation, not chosen by any one brand. That means La Roche-Posay's Effaclar Adapalene Gel, Differin, and Acne Free all disclose the identical 0.1% adapalene on their own Drug Facts panels. There is no "weaker" or "stronger" adapalene gel here; it is the same drug, at the same legal concentration, in three different tubes.

So the comparison comes down to what each gram of gel costs, and the cheapest sticker price is not the best deal. Differin's 45 g tube costs $0.43 per gram of gel. Acne Free has the lowest sticker price, but its tube is a third the size, so each gram costs more than Differin's. La Roche-Posay costs the most, $0.89 per gram, for the identical drug.

If you want the cheapest way to use 0.1% adapalene over the months it takes to clear acne, Differin wins. If you want to try adapalene for the least money upfront, Acne Free's small tube gets you there; you will just replace it sooner. La Roche-Posay's higher price buys its own base and packaging, not a different drug.

04 / The candidates

Every candidate, examined

01 / Differin

The winner
$426.44 per g of active
$19.19 retail · 45 mL
95% base formula · highest of 6

Differin Adapalene Gel 0.1%

Shared formula DNA 0 of 2 original ingredients present
Adapalene (0.1% active ingredient)

shared with original not shared rare marker — weighs more in the score

What matches
Discloses the identical 0.1% adapalene — the FDA approves OTC adapalene only at this strength, so every brand's tube contains the same drug at the same strength. Differin is the original adapalene brand; its 2016 switch from prescription is what made 0.1% adapalene an over-the-counter drug.
What differs
A bigger 45 g tube than Acne Free's 15 g — which is exactly why Differin, not Acne Free, is the cheapest per gram of gel ($0.43) despite Acne Free's lower sticker price.
Who it's for
The winner — the honest long-run value pick. $19.19 versus $39.99 for the identical 0.1% adapalene, and the lowest cost per gram of the three once you account for tube size.
Ships in
Packaging not verified No brand or retailer statement on the bottle — we won’t guess.
pH
pH not published L-ascorbic acid needs pH below 3.5 to absorb
Data source
Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel OTC adapalene is FDA-approved only at 0.1%; disclosed on the Drug Facts panel. ASIN B0H2F8XYC9 price + 45.0 mL size verified from the Verified Beauty Data's product records record (PA-API/label-verified).

$19.19 for 45 mL → $426.44 per gram of active — 2.1× cheaper per active gram than the original's $888.67.

Buy on Amazon $19.19

02 / Acne Free

Best budget
$664.67 per g of active
$9.97 retail · 15 mL
95% base formula · 2nd of 6

Acne Free Adapalene Gel 0.1%

Shared formula DNA 0 of 2 original ingredients present
Adapalene (0.1% active ingredient)

shared with original not shared rare marker — weighs more in the score

What matches
Also discloses the identical 0.1% adapalene on its own Drug Facts panel — same FDA-fixed drug, same strength, at the lowest sticker price on this page ($9.97).
What differs
A smaller 15 g tube — a third the size of Differin's 45 g — which means each gram of gel ($0.66) costs more than Differin's ($0.43), not less. The lowest price tag is not the lowest long-run cost here.
Who it's for
The best-budget pick if the smallest possible upfront cost is what matters — $9.97 to try 0.1% adapalene. If you already know you'll use it for months, Differin's bigger tube is the cheaper way to buy the same drug.
Ships in
Packaging not verified No brand or retailer statement on the bottle — we won’t guess.
pH
pH not published L-ascorbic acid needs pH below 3.5 to absorb
Data source
Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel OTC adapalene is FDA-approved only at 0.1%; disclosed on the Drug Facts panel. ASIN B07V6N5LYK price + 15.0 mL size verified from the Verified Beauty Data's product records record (PA-API/label-verified).

$9.97 for 15 mL → $664.67 per gram of active — 1.3× cheaper per active gram than the original's $888.67.

Buy on Amazon $9.97

05 / Methodology

How we verified this

Verified June 15, 2026

Every formula on this page was tokenized — split into its individual INCI ingredients — and matched against the EU CosIng ingredient database, so "Aqua," "Water," and "Eau" all resolve to the same ingredient.

The base-formula match score works like this: sharing a rare ingredient counts far more than sharing a common one. Almost every serum contains water and glycerin — that proves nothing. Almost nothing contains Ethoxydiglycol or Laureth-23, so when a candidate shares those with the original, it says something real about how the formula was built. (For the statisticians: it is an IDF-weighted Jaccard similarity over the normalized ingredient lists.)

Scores are computed, not opinions. The verdict tags are our editorial read of the actives, the scores, and the prices — and the methodology stays public so you can disagree with us precisely.

Where the ingredient lists come from

  1. Adapalene 0.1% disclosed on the FDA OTC Drug Facts panel

Sources for this report

  • FDA OTC Drug Facts panels — adapalene 0.1% is the only FDA-approved OTC strength
  • Amazon Creators PA-API — ASIN/price verification
  • Verified Beauty Data's own product records

06 / Questions

Frequently asked

What is the best La Roche-Posay Effaclar Adapalene Gel dupe?
Differin ($19.19) is the honest winner. Adapalene 0.1% is an FDA-approved over-the-counter drug (Differin switched from prescription in 2016) — the concentration is legally fixed, so La Roche-Posay, Differin, and Acne Free all disclose the identical 0.1% on their own Drug Facts panels. Differin's 45 g tube works out to $0.43 per gram of gel — the cheapest of the three once you account for tube size, even though Acne Free has the lower sticker price.
Is Differin the same as La Roche-Posay Effaclar Adapalene Gel?
On the active, yes — both disclose the identical 0.1% adapalene, a concentration fixed by FDA regulation, not chosen by either brand. The difference is the base: La Roche-Posay's derm-pharmacy formula costs $0.89 per gram of gel, versus Differin's $0.43. You are paying for the base and packaging, not a different drug.
Is Acne Free Adapalene Gel cheaper than Differin per use?
Its sticker price is lower ($9.97 versus $19.19), but its tube is a third the size (15 g versus Differin's 45 g). Per gram of gel, Acne Free actually costs $0.66 — more than Differin's $0.43. Acne Free is the lower-upfront-cost option; Differin is the lower long-run cost.

→ / Related

Dig into the ingredients