EVIDENCE COMPARISON

Directional

Glycolic Acid
vs Tretinoin
for Surface Smoothness

Early or indirect evidence suggests glycolic acid may provide 12% better surface smoothness improvement than tretinoin for skin texture, based on indirect comparison.

1.12x

Effect ratio

Glycolic Acid

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

A Randomized Control Trial of 20% Glycolic Acid Versus 30% Salicylic Acid in the Management of Molluscum Contagiosum.

controlled
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