Sample
18 redditors with explicit opinion · 8 positive · 0 negative · 3 neutral
Score0.795 — formula: 0.75 × % positive + 0.25 × pos/neg ratio
Confidence95% CI: 43–90% · the true approval rate falls in this range with 95% statistical confidence
Verdict
Recommended — ≥50% positive. Mixed but more good than bad.
Sources
r/tretinoin, r/r/SkincareAddiction