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
No EU-regulated hazards recognized among 23 ingredients.
Starts at 100; 23 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 2 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
Robust21 of 23 characterized
Our sources have reference data on 21 of 23 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 |
| Butylene Glycolfragrancehumectantskin conditioning | fragrancehumectantskin conditioning | No flags in our sources | Well-characterized |
| Propanediolsolventviscosity controlling | solventviscosity controlling | No flags in our sources | Well-characterized |
| Carbomeremulsion stabilisinggel formingviscosity controlling | emulsion stabilisinggel formingviscosity controlling | EU microplastics-restricted· flagged by 1 of 9raters disagree | Referenced |
| Niacinamidesmoothing | smoothing | No flags in our sources | Well-characterized |
| Polysorbate 20surfactant - cleansingsurfactant - emulsifying | surfactant - cleansingsurfactant - emulsifying | No flags in our sources | Well-characterized |
| Glycerol | No flags in our sources | Well-characterized | |
| Tasmannia Lanceolata Fruit/Leaf Extractantioxidanthair conditioningskin conditioning | antioxidanthair conditioningskin conditioning | No flags in our sources | CosIng-catalogued |
| Brassica Campestris Extractskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Brassica Oleracea Italica Sprout Extractemollientskin conditioning | emollientskin conditioning | No flags in our sources | CosIng-catalogued |
| Polygonum Fagopyrum Seed Extractskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Medicago Sativa Extracttonic | tonic | No flags in our sources | CosIng-catalogued |
| Brassica Oleracea Acephala Leaf Extracthumectantskin conditioning | humectantskin conditioning | No flags in our sources | CosIng-catalogued |
| Brassica Oleracea Capitata Leaf Extractskin conditioning | skin conditioning | No flags in our sources | CosIng-catalogued |
| Bioflavonoidssoothingskin conditioning | soothingskin conditioning | No flags in our sources | CosIng-catalogued |
| Aloe Barbadensis Leaf Extracthumectantemollientoral care | humectantemollientoral care | IARC possible carcinogen (Group 2B)· flagged by 1 of 9raters disagree | Referenced |
| Allantoinsoothingskin conditioningskin protecting | soothingskin conditioningskin protecting | No flags in our sources | Well-characterized |
| Disodium EDTAchelatingviscosity controlling | chelatingviscosity controlling | No flags in our sources | Well-characterized |
| Phenoxyethanolpreservativeantimicrobial | preservativeantimicrobial | Mild sensitizer for some· flagged by 1 of 9raters disagree | Referenced |
| Caprylyl Glycolemollientdeodoranthair conditioning | emollientdeodoranthair conditioning | No flags in our sources | Well-characterized |
| Mentha arvensis Oil | Not in our sources | No data | |
| Maclura Cochinchinensis Leaf Prenylflavonoids | Not in our sources | No data | |
| Goldcolorantslip modifiersurface modifier | colorantslip modifiersurface modifier | No flags in our sources | CosIng-catalogued |