Self‐applied topical interventions for melasma: a systematic review and meta‐analysis of data from randomized, investigator‐blinded clinical trials
randomized, split-face
EVIDENCE COMPARISON
DirectionalHyaluronic Acid Matrix (HAm)
vs Cysteamine
for Pigmentation Reduction
Early or indirect evidence suggests hyaluronic acid matrix and cysteamine show equal effectiveness for reducing pigmentation to improve skin tone, based on indirect comparison.
1.00x
Effect ratio
Neither
Favored
2
Studies
Indirect
Comparison
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.
Tone
How to read this claim
Kept public as exploratory because it indirect comparison; mixed endpoint quality; early-stage evidence tier.
Some study-specific context may affect how broadly this comparison generalizes.
Source Studies (2)
… double-blind, placebo-controlled clinical trial evaluating the efficacy of a novel combination of hyaluronic acid serum and antioxidant cream for rejuvenation of the …
randomized, double-blind