Coverage & match quality
1 rating · 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 8 of 39 ingredients: 1 of concern, 6 regulated allergens.
Starts at 100; 32 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 24 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
Robust38 of 39 characterized
Our sources have reference data on 38 of 39 listed ingredients; 1 is uncharacterized in our data — a gap, not a clean bill.
| Ingredient | What it does | Safety | Data |
|---|---|---|---|
| Aqua/Water/Eau | No flags in our sources | Well-characterized | |
| Dipropylene Glycolperfumingfragrancesolvent | perfumingfragrancesolvent | No flags in our sources | Well-characterized |
| Polysilicone-29hair conditioning | hair conditioning | No flags in our sources | CosIng-catalogued |
| Silicone Quaternium-18emollienthair conditioning | emollienthair conditioning | No flags in our sources | CosIng-catalogued |
| Chondrus Crispus Extractskin conditioningviscosity controlling | skin conditioningviscosity controlling | No flags in our sources | CosIng-catalogued |
| Ascophyllum Nodosum Extractskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Palmaria Palmata Extractskin protecting | skin protecting | No flags in our sources | CosIng-catalogued |
| Laminaria Saccharina Extractskin protecting | skin protecting | No flags in our sources | CosIng-catalogued |
| Undaria Pinnatifida Extractskin conditioningskin protecting | skin conditioningskin protecting | No flags in our sources | CosIng-catalogued |
| Polysorbate 20surfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Trideceth-12surfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Trideceth-6surfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Caprylyl Glycolemollientdeodoranthair conditioning | emollientdeodoranthair conditioning | No flags in our sources | Well-characterized |
| Parfum/Fragrance | Transparency concern· flagged by 1 of 9raters disagree | Referenced | |
| Ceteareth-25cleansingsurfactant - cleansingsurfactant - emulsifying | cleansingsurfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Ceteareth-7surfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Hydroxypropyl Guar Hydroxypropyltrimonium Chlorideantistatichair conditioning | antistatichair conditioning | No flags in our sources | CosIng-catalogued |
| Hydroxypropylgluconamidehumectanthair conditioning | humectanthair conditioning | No flags in our sources | CosIng-catalogued |
| Hydroxypropylammonium Gluconatehumectanthair conditioning | humectanthair conditioning | No flags in our sources | CosIng-catalogued |
| Lactic Acidhumectantbufferingskin conditioning | humectantbufferingskin conditioning | Health Canada Hotlist — restricted· flagged by 1 of 9raters disagree | Referenced |
| Glycolic Acidbuffering | buffering | Health Canada Hotlist — restricted· flagged by 1 of 9raters disagree | Referenced |
| Caprylhydroxamic Acidchelating | chelating | No flags in our sources | CosIng-catalogued |
| Bis-Cetearyl Amodimethiconehair conditioning | hair conditioning | No flags in our sources | CosIng-catalogued |
| Dipeptide Diaminobutyroyl Benzylamide Diacetateskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Phenoxyethanolpreservativeantimicrobial | preservativeantimicrobial | Mild sensitizer for some· flagged by 1 of 9raters disagree | Referenced |
| Butylene Glycolfragrancehumectantskin conditioning | fragrancehumectantskin conditioning | No flags in our sources | Well-characterized |
| Propylene Carbonatesolventviscosity controlling | solventviscosity controlling | No flags in our sources | Well-characterized |
| Propanediolsolventviscosity controlling | solventviscosity controlling | No flags in our sources | Well-characterized |
| O-Cymen-5-olpreservativeantimicrobialdeodorant | preservativeantimicrobialdeodorant | No flags in our sources | CosIng-catalogued |
| Tartaric Acidfragrancebuffering | fragrancebuffering | Health Canada Hotlist — restricted· flagged by 1 of 9raters disagree | Referenced |
| Benzyl Alcoholpreservativeperfumingsolvent | preservativeperfumingsolvent | EU harmonised skin sensitizer· flagged by 2 of 9raters disagree | Referenced |
| Sodium Benzoatepreservativefragranceanticorrosive | preservativefragranceanticorrosive | No flags in our sources | Well-characterized |
| Potassium Sorbatepreservativefragrance | preservativefragrance | No flags in our sources | Well-characterized |
| Benzyl Salicylateuv absorberperfuming | uv absorberperfuming | ANSES endocrine candidate· flagged by 3 of 9raters disagree | Referenced |
| Limoneneperfumingdeodorantsolvent | perfumingdeodorantsolvent | ANSES endocrine candidate· flagged by 3 of 9raters disagree | Referenced |
| Geranyl Acetateperfumingtonic | perfumingtonic | ANSES endocrine candidate· flagged by 2 of 9raters disagree | Referenced |
| Vanillinfragrance | fragrance | EU-regulated fragrance allergen· flagged by 1 of 9raters disagree | Referenced |
| Hexyl Cinnamalperfuming | perfuming | ANSES endocrine candidate· flagged by 2 of 9raters disagree | Referenced |
| VFDSS01-Y24 | Not in our sources | No data |