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 4 of 29 ingredients: 1 prohibited, 2 restricted, 1 of concern.
Starts at 100; 25 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 55 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
Robust27 of 29 characterized
Our sources have reference data on 27 of 29 listed ingredients; 2 are uncharacterized in our data — a gap, not a clean bill.
| Ingredient | What it does | Safety | Data |
|---|---|---|---|
| AQUAsolvent | solvent | No flags in our sources | Well-characterized |
| ALCOHOL DENATfragranceantimicrobialantifoaming | fragranceantimicrobialantifoaming | ANSES endocrine candidate· flagged by 3 of 9raters disagree | Referenced |
| PROPANEpropellant | propellant | No flags in our sources | CosIng-catalogued |
| CAFFEINEperfumingskin conditioning | perfumingskin conditioning | ANSES endocrine candidate· flagged by 1 of 9raters disagree | Referenced |
| ISOBUTANEpropellant | propellant | EU-prohibited· flagged by 3 of 9raters disagree | Referenced |
| CYCLOPENTASILOXANEemollienthair conditioningskin conditioning | emollienthair conditioningskin conditioning | Persistent / bioaccumulative· flagged by 1 of 9raters disagree | Referenced |
| THEOPHYLLINEtonicskin conditioning | tonicskin conditioning | EU harmonised CMR (cat. 1)· flagged by 1 of 9raters disagree | Referenced |
| CARNITINEantistaticcleansinghair conditioning | antistaticcleansinghair conditioning | No flags in our sources | CosIng-catalogued |
| HYDROXYETHYLCELLULOSEfilm formingbindingemulsion stabilising | film formingbindingemulsion stabilising | No flags in our sources | Well-characterized |
| PPG-26-BUTETH-26hair conditioningskin conditioning | hair conditioningskin conditioning | No flags in our sources | CosIng-catalogued |
| PARFUMperfumingfragrance | perfumingfragrance | Transparency concern· flagged by 1 of 9raters disagree | Referenced |
| PROPYLENE GLYCOLhumectantskin conditioningsolvent | humectantskin conditioningsolvent | No flags in our sources | Well-characterized |
| PEG-40 HYDROGENATED CASTOR OILsurfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | CosIng-catalogued |
| SODIUM HYDROXIDEbufferingdenaturant | bufferingdenaturant | EU-restricted (with limits)· flagged by 2 of 9raters disagree | Referenced |
| GLYCERINperfuminghumectantdenaturant | perfuminghumectantdenaturant | No flags in our sources | Well-characterized |
| THEOBROMINEfragranceskin conditioning | fragranceskin conditioning | No flags in our sources | CosIng-catalogued |
| TROXERUTINskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| POLYQUATERNIUM-4film formingantistatic | film formingantistatic | No flags in our sources | CosIng-catalogued |
| VANILLYL BUTYL ETHERfragrancehair conditioningoral care | fragrancehair conditioningoral care | No flags in our sources | CosIng-catalogued |
| GLYCINE SOJA EXTRACTskin conditioning | skin conditioning | No flags in our sources | Well-characterized |
| HEDERA HELIX LEAF/STEAM EXTRACT | Not in our sources | No data | |
| THEOBROMA CACAO SEED EXTRACTantioxidant | antioxidant | No flags in our sources | Well-characterized |
| BETULA ALBA LEAF EXTRACTfragranceastringentcleansing | fragranceastringentcleansing | No flags in our sources | CosIng-catalogued |
| HUMULUS LUPULUS FLOWER EXTRACT | Not in our sources | No data | |
| PUNICA GRANATUM BARK EXTRACTfragranceskin conditioning | fragranceskin conditioning | No flags in our sources | CosIng-catalogued |
| CENTELLA ASIATICA EXTRACTcleansingsmoothingsoothing | cleansingsmoothingsoothing | No flags in our sources | Well-characterized |
| MALTODEXTRINfilm formingabsorbentbinding | film formingabsorbentbinding | No flags in our sources | Well-characterized |
| SILICAabrasiveabsorbentanticaking | abrasiveabsorbentanticaking | No flags in our sources | Well-characterized |
| TETRASODIUM GLUTAMATE DIACETATEchelating | chelating | No flags in our sources | Well-characterized |