The Amazon link is an affiliate link. Greenlens may earn a commission; it never changes a rating or ranking.
Raters split
Ingredient safety
A 25-point gap between the two loudest voices.
Lowest 65 · highest 90 · gap 25
Coverage & match quality
7 ratings · 4 of 4 axes
no black box
We don't rate products ourselves. We collect what each public rater already says, put every scale on common ground, and keep the disagreements visible instead of averaging them away.
Collect each rater's own score
Every source keeps its native verdict for this product. We never invent a score for an axis a source didn't measure.
Normalize to 0–100, higher = better
Raters use different scales: EWG's 1–10 where low means safe, Yuka's 0–100 where high means safe. We map them all onto one 0–100 axis and flip the ones that run backwards so the numbers are finally comparable.
Average per axis, but keep the spread
Scores on the same axis become one representative number (their mean). When raters split by 20+ points we flag it and keep every rater's number. A disagreement is never blended into silence.
Your weights make the overall
The ring is the weighted average of the four pillars using your weights. It's computed fresh every time and never stored, so there's no hidden “objective” default.
worked example · Ingredient safety
Raters split here, so this 75 is a midpoint, not a consensus. The spread stays on the “every rater” list above.
Tune your weights
composite recomputes live
+Range 58–65
Ingredient safety is lifting your score: INCI Beauty (Ad-supported) scores it 65 while Greenlens Ingredient Scan (Independent) scores it 90.
