Greenlens

Every public rating on one cosmetic, the places they disagree kept visible, and a single score whose weighting you control.

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The one rule

We never blend a score that hides who disagrees. Funding model travels with every rating. Weights are computed at read time and never stored.

Cosmetics only · lead with safetyOpen data via Open Beauty Facts · no EWG/Yuka scraping
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Catalog/colorwowhairUS/Youth Juice Scalp Treatment
Youth Juice Scalp Treatment
colorwowhairUS

Youth Juice Scalp Treatment

hair1.7fl

Your composite

90OUT OF 100Excellent
90
Safety
—
Eco
—
Labor
—
Pkg

Why this score

8-point split

90

Scan

98

Precautionary

94

Tolerance

See why →
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In your home

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Cleaner options

12 found

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Flags

No ingredient flags.

Cleaner options

See 12 cleaner alternatives

Same category, ranked by ingredient safety, never by affiliate payout.

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Every rater, every axis

Ingredient safety

  • Greenlens Ingredient ScanIndependentunverified match
    90

Coverage & match quality

1 rating · 1 of 4 axes

  • Some ratings rest on an automatic match that has not been human-reviewed.
  • Fewer raters reach smaller-brand products, so a missing rating is not a clean bill of health, only a gap.

no black box

How this score is built

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.

  1. 1

    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.

  2. 2

    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.

  3. 3

    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.

  4. 4

    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 Scan90 on 0–100→90
Single raterpillar90

Why the safety score

Greenlens Ingredient Scan

Independent · EU regulatory reference

90/100

Flagged 2 of 29 ingredients: 1 restricted.

  • Pinus pinaster oil and extractEU Cosmetics Regulation Annex III (restricted)−10

Starts at 100; 28 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 8 points apart. See what each one flags, and what it costs.

All three lenses →

Weighted by what you care about

Tune your weights

composite recomputes live

+
1.0×
Environmentalno rating

No rater covers this axis for this product, so its weight can't move the score.

Laborno rating

No rater covers this axis for this product, so its weight can't move the score.

Packagingno rating

No rater covers this axis for this product, so its weight can't move the score.

0 means ignored. Higher = more weight in your composite.

Ingredients, decoded

Data availability

Robust·29 of 29 characterized

Our sources have reference data on all 29 listed ingredients.

Every listed ingredient: its function, where our safety lists land, and whether our sources have data on it.
IngredientWhat it doesSafetyData
WATER/AQUA/EAU→solventsolventNo flags in our sourcesWell-characterized
BUTYLENE GLYCOL→fragrancehumectantskin conditioningfragrancehumectantskin conditioningNo flags in our sourcesWell-characterized
PENTYLENE GLYCOL→skin conditioningsolventskin conditioningsolventNo flags in our sourcesWell-characterized
PROPANEDIOL→solventviscosity controllingsolventviscosity controllingNo flags in our sourcesWell-characterized
GLYCERIN→perfuminghumectantdenaturantperfuminghumectantdenaturantNo flags in our sourcesWell-characterized
HEXYLENE GLYCOL→perfumingsurfactant - cleansingsurfactant - emulsifyingperfumingsurfactant - cleansingsurfactant - emulsifyingNo flags in our sourcesWell-characterized
PHENOXYETHANOL→preservativeantimicrobialpreservativeantimicrobial4/10Mild sensitizer for some· flagged by 1 of 9raters disagreeReferenced
CARBOMER→emulsion stabilisinggel formingviscosity controllingemulsion stabilisinggel formingviscosity controlling4/10EU microplastics-restricted· flagged by 1 of 9raters disagreeReferenced
ACETAMIDE MEA→humectanthair conditioningsurfactant - cleansinghumectanthair conditioningsurfactant - cleansingNo flags in our sourcesCosIng-catalogued
PHYLLANTHUS EMBLICA FRUIT EXTRACT→humectantskin conditioninghumectantskin conditioningNo flags in our sourcesCosIng-catalogued
NIACINAMIDE→smoothingsmoothingNo flags in our sourcesWell-characterized
AMINOMETHYL PROPANOL→bufferingbufferingNo flags in our sourcesCosIng-catalogued
KAPPAPHYCUS ALVAREZII EXTRACT→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
PANTHENOL→antistatichair conditioningskin conditioningantistatichair conditioningskin conditioningNo flags in our sourcesWell-characterized
CAFFEINE→perfumingskin conditioningperfumingskin conditioning6/10ANSES endocrine candidate· flagged by 1 of 9raters disagreeReferenced
ETHYLHEXYLGLYCERIN→deodorantskin conditioningdeodorantskin conditioningNo flags in our sourcesWell-characterized
ARGININE→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
LACTIC ACID→humectantbufferingskin conditioninghumectantbufferingskin conditioning4/10Health Canada Hotlist — restricted· flagged by 1 of 9raters disagreeReferenced
AMARANTHUS CAUDATUS SEED EXTRACT→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
DISODIUM EDTA→chelatingviscosity controllingchelatingviscosity controllingNo flags in our sourcesWell-characterized
PINUS PINASTER BARK EXTRACT→antioxidantantioxidant4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
GLYCINE SOJA GERM EXTRACT→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
TRITICUM VULGARE GERM EXTRACT→skin conditioningskin protectingskin conditioningskin protectingNo flags in our sourcesCosIng-catalogued
SEA WATER→humectantsolventhumectantsolventNo flags in our sourcesCosIng-catalogued
SODIUM BENZOATE→preservativefragranceanticorrosivepreservativefragranceanticorrosiveNo flags in our sourcesWell-characterized
GLUCONOLACTONE→chelatingskin conditioningchelatingskin conditioningNo flags in our sourcesWell-characterized
HYDROLYZED RICE PROTEIN→antistatichair conditioningskin conditioningantistatichair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
SCUTELLARIA BAICALENSIS ROOT EXTRACT→humectantastringentsoothinghumectantastringentsoothingNo flags in our sourcesCosIng-catalogued
PPG-26-BUTETH-26→hair conditioningskin conditioninghair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued