EVIDENCE COMPARISON

Directional

Tretinoin
vs Adapalene
for Surface Smoothness

Early or indirect evidence suggests tretinoin and adapalene show equal performance for improving skin surface smoothness based on indirect comparison.

1.00x

Effect ratio

Neither

Favored

2

Studies

Indirect

Comparison

ExploratorySubjective endpointTexture

Limits: Indirect comparison · Includes subjective endpoint · Early-stage evidence tier

This is an indirect comparison — the two ingredients were not tested head-to-head in the same trial. The ratio is derived from separate studies against a common comparator.

How to read this claim

Kept public as exploratory because it indirect comparison; includes subjective endpoint; early-stage evidence tier.

Some study-specific context may affect how broadly this comparison generalizes.

Source Studies (2)

Comparison of tretinoin 0.05% cream and 3% alcohol-based salicylic acid preparation in the treatment of acne vulgaris.

randomized

2% supramolecular salicylic acid hydrogel vs. adapaline gel in mild to moderate acne vulgaris treatment: A multicenter, randomized, evaluator-blind, parallel-controlled trial.

randomized
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