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/Olaplex/Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO LITER
O
Olaplex

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO LITER

uncategorized

Your composite

83OUT OF 100Good

range 80–87

75
Safety
—
Eco
92
Labor
—
Pkg

Why this score

22-point split

67

Scan

60

Precautionary

82

Tolerance

See why →
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In your home

Sort this into a room

Alternatives

No category on file, so no fair comparison.

Flags

No ingredient flags.

Every rater, every axis

Ingredient safety

Raters agree
  • Greenlens Ingredient ScanIndependentunverified match
    67
  • Greenlens Tolerance ScreenIndependentunverified match
    82

Labor

  • Cruelty-Free CertificationNonprofitunverified match
    92

Coverage & match quality

3 ratings · 2 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 Scan67 on 0–100→67
  • Greenlens Tolerance Screen82 on 0–100→82
Average of 67 · 82pillar75

Why the safety score

Greenlens Ingredient Scan

Independent · EU regulatory reference

67/100

Flagged 4 of 49 ingredients: 3 restricted, 1 regulated allergen.

  • PolyacrylamidesEU Cosmetics Regulation Annex III (restricted)−10
  • MentholEU Cosmetics Regulation Annex III / Reg. (EU) 2023/1545 (labelled fragrance allergen)−3
  • PolyacrylamidesEU Cosmetics Regulation Annex III (restricted)−10
  • Inorganic sulfites and bisulfites (12)EU Cosmetics Regulation Annex III (restricted)−10

Starts at 100; 45 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.

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.

1.0×
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·47 of 49 characterized

Our sources have reference data on 47 of 49 listed ingredients; 2 are uncharacterized in our data — a gap, not a clean bill.

Every listed ingredient: its function, where our safety lists land, and whether our sources have data on it.
IngredientWhat it doesSafetyData
Aqua→solventsolventNo flags in our sourcesWell-characterized
Sodium Cocoyl Isethionate→cleansinghair conditioningsurfactant - cleansingcleansinghair conditioningsurfactant - cleansingNo flags in our sourcesWell-characterized
Cocamidopropyl Betaine→antistaticcleansinghair conditioningantistaticcleansinghair conditioning6/10Strong contact sensitizer· flagged by 1 of 9raters disagreeReferenced
Sodium C14-16 Olefin Sulfonate→cleansingfoamingsurfactant - cleansingcleansingfoamingsurfactant - cleansingNo flags in our sourcesWell-characterized
Cocamidopropylamine Oxide→cleansinghair conditioningsurfactant - cleansingcleansinghair conditioningsurfactant - cleansingNo flags in our sourcesWell-characterized
Decyl Glucoside→cleansingemulsion stabilisingsurfactant - cleansingcleansingemulsion stabilisingsurfactant - cleansingNo flags in our sourcesWell-characterized
Acrylates Copolymer→film formingantistaticbindingfilm formingantistaticbinding4/10EU microplastics-restricted· flagged by 1 of 9raters disagreeReferenced
sh-Oligopeptide-281 SP→—Not in our sourcesNo data
Carthamus Tinctorius Oleosomes→emollientemulsion stabilisingskin conditioningemollientemulsion stabilisingskin conditioningNo flags in our sourcesWell-characterized
Panthenol→antistatichair conditioningskin conditioningantistatichair conditioningskin conditioningNo flags in our sourcesWell-characterized
Polyquaternium-11→film formingantistaticfilm formingantistaticNo flags in our sourcesCosIng-catalogued
Polyquaternium-7→film formingantistaticfilm formingantistatic4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
Salvia Hispanica Seed Extract→emollientskin conditioningemollientskin conditioningNo flags in our sourcesCosIng-catalogued
Ilex Paraguariensis Leaf Extract→perfuminghair conditioningskin conditioningperfuminghair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Crambe Abyssinica Seed Oil→hair conditioningskin conditioninghair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Linum Usitatissimum Seed Extract→perfumingskin conditioningperfumingskin conditioningNo flags in our sourcesWell-characterized
Hydroxypropyltrimonium Hyaluronate→film formingfilm formingNo flags in our sourcesCosIng-catalogued
Helianthus Annuus Seed Oil→fragranceemollientskin conditioningfragranceemollientskin conditioningNo flags in our sourcesWell-characterized
Persea Gratissima Oil→skin conditioningskin conditioningNo flags in our sourcesWell-characterized
Helianthus Annuus Seed Wax→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Menthyl Lactate→fragrancerefreshingfragrancerefreshingNo flags in our sourcesCosIng-catalogued
Jojoba Esters→emollientmoisturisingsoothingemollientmoisturisingsoothingNo flags in our sourcesCosIng-catalogued
Tocopherol→fragranceantioxidantskin conditioningfragranceantioxidantskin conditioningNo flags in our sourcesWell-characterized
Pentylene Glycol→skin conditioningsolventskin conditioningsolventNo flags in our sourcesWell-characterized
Acacia Senegal Gum→fragrancefilm formingfragrancefilm formingNo flags in our sourcesWell-characterized
Menthol→fragrancedenaturantrefreshingfragrancedenaturantrefreshing4/10EU-regulated fragrance allergen· flagged by 1 of 9raters disagreeReferenced
Glycerin→perfuminghumectantdenaturantperfuminghumectantdenaturantNo flags in our sourcesWell-characterized
Glycol Distearate→emollientopacifyingsurfactant - emulsifyingemollientopacifyingsurfactant - emulsifyingNo flags in our sourcesWell-characterized
Polyester-37→film forminghair conditioningskin conditioningfilm forminghair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Propanediol→solventviscosity controllingsolventviscosity controllingNo flags in our sourcesWell-characterized
Caprylyl Glycol→emollientdeodoranthair conditioningemollientdeodoranthair conditioningNo flags in our sourcesWell-characterized
Ethyl Linoleate→perfumingemollientperfumingemollientNo flags in our sourcesCosIng-catalogued
Ethyl Oleate→perfumingemollientperfumingemollientNo flags in our sourcesCosIng-catalogued
Caprylic Acid→perfumingfragrancecleansingperfumingfragrancecleansingNo flags in our sourcesWell-characterized
Xylitol→humectantskin conditioninghumectantskin conditioningNo flags in our sourcesCosIng-catalogued
Lactic Acid→humectantbufferingskin conditioninghumectantbufferingskin conditioning4/10Health Canada Hotlist — restricted· flagged by 1 of 9raters disagreeReferenced
Hydroxypropyl Bis-Hydroxyethyldimonium Chloride→humectantskin conditioninghumectantskin conditioningNo flags in our sourcesCosIng-catalogued
Guar Hydroxypropyltrimonium Chloride→film formingantistaticskin conditioningfilm formingantistaticskin conditioningNo flags in our sourcesCosIng-catalogued
Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer→film formingantistatichair fixingfilm formingantistatichair fixing4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
Sorbitan Oleate Decylglucoside Crosspolymer→cleansingsurfactant - emulsifyingsurfactant - foam boostingcleansingsurfactant - emulsifyingsurfactant - foam boostingNo flags in our sourcesWell-characterized
Hydroxypropylcellulose→film formingbindingemulsion stabilisingfilm formingbindingemulsion stabilisingNo flags in our sourcesWell-characterized
Ethylhexylglycerin→deodorantskin conditioningdeodorantskin conditioningNo flags in our sourcesWell-characterized
Polyglycerin-3→humectanthumectantNo flags in our sourcesWell-characterized
Propylene Glycol→humectantskin conditioningsolventhumectantskin conditioningsolventNo flags in our sourcesWell-characterized
Phenethyl Alcohol→fragrancefragrance6/10ANSES endocrine candidate· flagged by 1 of 9raters disagreeReferenced
Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate→antioxidantantioxidantNo flags in our sourcesWell-characterized
Gluconolactone→chelatingskin conditioningchelatingskin conditioningNo flags in our sourcesWell-characterized
Sodium Metabisulfite→preservativeantioxidantreducingpreservativeantioxidantreducing4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
Trisodium Ethylenediami→—Not in our sourcesNo data