Coverage & match quality
2 ratings · 1 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 can use different scales and directions: some where a low number means safe, some where a high one does. 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
Greenlens Ingredient Scan
Independent · EU regulatory reference
Flagged 6 of 32 ingredients: 1 restricted, 5 regulated allergens.
Starts at 100; 26 other ingredients carried no recognized regulated hazard. Absence of a flag means no regulated hazard was recognized — not proof of safety. This is one lens; see where raters disagree above.
Why this score
Every ingredient, under all three lenses
The Scan is one opinion. The strict and lenient lenses read the same list and land 22 points apart. See what each one flags, and what it costs.
Tune your weights
composite recomputes live
+No rater covers this axis for this product, so its weight can't move the score.
No rater covers this axis for this product, so its weight can't move the score.
No rater covers this axis for this product, so its weight can't move the score.
Data availability
Good25 of 32 characterized
Our sources have reference data on 25 of 32 listed ingredients; 7 are uncharacterized in our data — a gap, not a clean bill.
| Ingredient | What it does | Safety | Data |
|---|---|---|---|
| Water/Aqua/EAUsolvent | solvent | No flags in our sources | Well-characterized |
| Cocamidopropyl Hydroxysultaineantistaticcleansinghair conditioning | antistaticcleansinghair conditioning | No flags in our sources | Well-characterized |
| Sodium Cocoyl Isethionatecleansinghair conditioningsurfactant - cleansing | cleansinghair conditioningsurfactant - cleansing | No flags in our sources | Well-characterized |
| Caprylyl/Capryl Glucosidecleansingfoamingsurfactant - cleansing | cleansingfoamingsurfactant - cleansing | No flags in our sources | Well-characterized |
| Glycerinperfuminghumectantdenaturant | perfuminghumectantdenaturant | No flags in our sources | Well-characterized |
| Pyrus Malus Fruit Extractskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Lactobacillus/Salix Purpurea Bark Ferment Extract | No flags in our sources | CosIng-catalogued | |
| Salicylic Acidpreservativefragranceanti-seborrheic | preservativefragranceanti-seborrheic | EU harmonised CMR (cat. 2)· flagged by 4 of 9raters disagree | Referenced |
| Glyceryl Stearate SEsurfactant - emulsifying | surfactant - emulsifying | No flags in our sources | Well-characterized |
| Cucurbita Pepo Seed Oilemollientskin conditioning | emollientskin conditioning | No flags in our sources | Well-characterized |
| Biotinanti-sebumhair conditioningskin conditioning | anti-sebumhair conditioningskin conditioning | No flags in our sources | CosIng-catalogued |
| Coconut Acidemollientcleansingsurfactant - cleansing | emollientcleansingsurfactant - cleansing | No flags in our sources | Well-characterized |
| Sodium Isethionateantistaticcleansinghair conditioning | antistaticcleansinghair conditioning | No flags in our sources | CosIng-catalogued |
| Mentholfragrancedenaturantrefreshing | fragrancedenaturantrefreshing | EU-regulated fragrance allergen· flagged by 1 of 9raters disagree | Referenced |
| Coffea Arabica Seed Extractfragranceskin conditioning | fragranceskin conditioning | No flags in our sources | CosIng-catalogued |
| Bambusa Arundinacea Stem Powderabrasive | abrasive | No flags in our sources | CosIng-catalogued |
| Oenothera Biennis Oilemollient | emollient | No flags in our sources | Well-characterized |
| Benzyl Alcoholpreservativeperfumingsolvent | preservativeperfumingsolvent | EU harmonised skin sensitizer· flagged by 2 of 9raters disagree | Referenced |
| Sodium Gluconatechelatingskin conditioning | chelatingskin conditioning | No flags in our sources | Well-characterized |
| Potassium Sorbatepreservativefragrance | preservativefragrance | No flags in our sources | Well-characterized |
| Sorbic Acidpreservativefragrance | preservativefragrance | No flags in our sources | Well-characterized |
| Citric Acidfragrancechelatingbuffering | fragrancechelatingbuffering | Health Canada Hotlist — restricted· flagged by 1 of 9raters disagree | Referenced |
| Carvoneperfumingfragranceflavouring | perfumingfragranceflavouring | EU harmonised skin sensitizer· flagged by 2 of 9raters disagree | Referenced |
| Mentha Piperita Oilperfumingfragrancerefreshing | perfumingfragrancerefreshing | EU-regulated fragrance allergen· flagged by 1 of 9raters disagree | Referenced |
| Mentha Viridis Leaf Oilfragranceastringentskin conditioning | fragranceastringentskin conditioning | EU-regulated fragrance allergen· flagged by 1 of 9raters disagree | Referenced |
| Natural Fragrance | Not in our sources | No data | |
| 100% Natural Fragrance | Not in our sources | No data | |
| Share Opens in a new window | Not in our sources | No data | |
| Tweet Opens in a new window | Not in our sources | No data | |
| Pin it Opens in a new window | Not in our sources | No data | |
| View Ingredient Definitions | Not in our sources | No data | |
| Hair Renew Scalp Hairbath | Not in our sources | No data |