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.5LEAVE-IN MOISTURIZE & MEND LEAVE-IN CONDITIONER
O
Olaplex

Nº.5LEAVE-IN MOISTURIZE & MEND LEAVE-IN CONDITIONER

uncategorized

Your composite

88OUT OF 100Excellent

range 86–90

84
Safety
—
Eco
92
Labor
—
Pkg

Why this score

20-point split

80

Scan

100

Precautionary

88

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
    80
  • Greenlens Tolerance ScreenIndependentunverified match
    88

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 Scan80 on 0–100→80
  • Greenlens Tolerance Screen88 on 0–100→88
Average of 80 · 88pillar84

Why the safety score

Greenlens Ingredient Scan

Independent · EU regulatory reference

80/100

Flagged 2 of 71 ingredients: 2 restricted.

  • BEHENTRIMONIUM CHLORIDE (1)EU Cosmetics Regulation Annex III (restricted)−10
  • CETRIMONIUM CHLORIDE (1) / STRARTRIMONIUM CHLORIDE (1)EU Cosmetics Regulation Annex III (restricted)−10

Starts at 100; 69 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 20 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·70 of 71 characterized

Our sources have reference data on 70 of 71 listed ingredients; 1 is 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
Water/Aqua/Eau→solventsolventNo flags in our sourcesWell-characterized
Cetearyl Alcohol→emollientemulsion stabilisingopacifyingemollientemulsion stabilisingopacifyingNo flags in our sourcesWell-characterized
Astrocaryum Murumuru Seed Butter→emollientskin conditioningemollientskin conditioningNo flags in our sourcesWell-characterized
Propanediol→solventviscosity controllingsolventviscosity controllingNo flags in our sourcesWell-characterized
Behentrimonium Chloride→preservativeantistatichair conditioningpreservativeantistatichair conditioning4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
Glycerin→perfuminghumectantdenaturantperfuminghumectantdenaturantNo flags in our sourcesWell-characterized
Cetyl Alcohol→fragranceemollientemulsion stabilisingfragranceemollientemulsion stabilisingNo flags in our sourcesWell-characterized
Isoamyl Laurate→emollientskin conditioningemollientskin conditioningNo flags in our sourcesWell-characterized
Squalane→emollienthair conditioningrefattingemollienthair conditioningrefattingNo flags in our sourcesWell-characterized
Bis-Aminopropyl Diglycol Dimaleate→hair conditioninghair waving or straighteningskin conditioninghair conditioninghair waving or straighteningskin conditioningNo flags in our sourcesCosIng-catalogued
Brassicyl Valinate Esylate→emollientemulsion stabilisinghair conditioningemollientemulsion stabilisinghair conditioningNo flags in our sourcesCosIng-catalogued
Cetyl Esters→emollientskin conditioningemollientskin conditioningNo flags in our sourcesWell-characterized
Pentylene Glycol→skin conditioningsolventskin conditioningsolventNo flags in our sourcesWell-characterized
Phenethyl Benzoate→perfumingemollientperfumingemollientNo flags in our sourcesCosIng-catalogued
Brassica Campestris/Aleurites Fordi Oil Copolymer→film formingskin conditioningfilm formingskin conditioningNo flags in our sourcesCosIng-catalogued
Hydroxypropyl Guar Hydroxypropyltrimonium Chloride→antistatichair conditioningantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Caprylic/Capric Triglyceride→perfumingfragranceskin conditioningperfumingfragranceskin conditioningNo flags in our sourcesWell-characterized
Cetrimonium Chloride→preservativeantimicrobialantistaticpreservativeantimicrobialantistatic4/10EU-restricted (with limits)· flagged by 2 of 9raters disagreeReferenced
Caesalpinia Spinosa Gum→film formingskin conditioningviscosity controllingfilm formingskin conditioningviscosity controllingNo flags in our sourcesCosIng-catalogued
Fructooligosaccharides→humectantskin conditioninghumectantskin conditioningNo flags in our sourcesCosIng-catalogued
Beta Vulgaris Root Extract→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Sodium PCA→humectantantistatichair conditioninghumectantantistatichair conditioningNo flags in our sourcesWell-characterized
Hydroxypropyl Starch Phosphate→bulkingviscosity controllingbulkingviscosity controllingNo flags in our sourcesCosIng-catalogued
Guar Hydroxypropyltrimonium Chloride→film formingantistaticskin conditioningfilm formingantistaticskin conditioningNo flags in our sourcesCosIng-catalogued
Sodium Lactate→humectantbufferingkeratolytichumectantbufferingkeratolyticNo flags in our sourcesWell-characterized
Hydrogenated Ethylhexyl Olivate→emollientskin conditioningemollientskin conditioningNo flags in our sourcesCosIng-catalogued
Calcium Gluconate→humectantoral careskin conditioninghumectantoral careskin conditioningNo flags in our sourcesWell-characterized
Argania Spinosa Kernel Oil→emollientskin conditioningemollientskin conditioningNo flags in our sourcesWell-characterized
Caprylyl Glycol→emollientdeodoranthair conditioningemollientdeodoranthair conditioningNo flags in our sourcesWell-characterized
Cocos Nucifera Oil→perfumingfragrancehair conditioningperfumingfragrancehair conditioningNo flags in our sourcesWell-characterized
Panthenol→antistatichair conditioningskin conditioningantistatichair conditioningskin conditioningNo flags in our sourcesWell-characterized
Arginine→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Ethylhexylglycerin→deodorantskin conditioningdeodorantskin conditioningNo flags in our sourcesWell-characterized
Oryza Sativa Bran Extract→skin conditioningskin protectingskin conditioningskin protectingNo flags in our sourcesCosIng-catalogued
Sodium Phytate→chelatingoral carechelatingoral careNo flags in our sourcesWell-characterized
Aspartic Acid→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Potassium Lactate→humectantbufferingskin conditioninghumectantbufferingskin conditioningNo flags in our sourcesWell-characterized
Ximenia Americana Seed Oil→fragranceemollientfragranceemollientNo flags in our sourcesCosIng-catalogued
PCA→humectantmoisturisinghumectantmoisturisingNo flags in our sourcesCosIng-catalogued
Hydrogenated Olive Oil Unsaponifiables→emollienthair conditioningskin conditioningemollienthair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Butylene Glycol→fragrancehumectantskin conditioningfragrancehumectantskin conditioningNo flags in our sourcesWell-characterized
Lactic Acid→humectantbufferingskin conditioninghumectantbufferingskin conditioning4/10Health Canada Hotlist — restricted· flagged by 1 of 9raters disagreeReferenced
Raphanus Sativus Seed Extract→skin conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Octyldodecyl Oleate→emollientemollientNo flags in our sourcesCosIng-catalogued
Octyldodecanol→perfumingfragranceemollientperfumingfragranceemollientNo flags in our sourcesCosIng-catalogued
Helianthus Annuus Extract→emollienthair conditioningskin conditioningemollienthair conditioningskin conditioningNo flags in our sourcesWell-characterized
Propylene Glycol→humectantskin conditioningsolventhumectantskin conditioningsolventNo flags in our sourcesWell-characterized
Glycine→antistaticbufferinghair conditioningantistaticbufferinghair conditioningNo flags in our sourcesWell-characterized
Citric Acid→fragrancechelatingbufferingfragrancechelatingbuffering4/10Health Canada Hotlist — restricted· flagged by 1 of 9raters disagreeReferenced
Alanine→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Algin→fragrancebindingviscosity controllingfragrancebindingviscosity controllingNo flags in our sourcesCosIng-catalogued
Coco-Glucoside→cleansingfoamingsurfactant - cleansingcleansingfoamingsurfactant - cleansingNo flags in our sourcesWell-characterized
Sorbitan Oleate→surfactant - emulsifyingsurfactant - emulsifying6/10ANSES endocrine candidate· flagged by 1 of 9raters disagreeReferenced
Serine→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Tocopherol→fragranceantioxidantskin conditioningfragranceantioxidantskin conditioningNo flags in our sourcesWell-characterized
Rosmarinus Officinalis Leaf Extract→fragranceantimicrobialskin conditioningfragranceantimicrobialskin conditioningNo flags in our sourcesCosIng-catalogued
Valine→fragranceantistatichair conditioningfragranceantistatichair conditioningNo flags in our sourcesCosIng-catalogued
Carrageenan→—No flags in our sourcesWell-characterized
Chitosan→film forminghair fixingfilm forminghair fixingNo flags in our sourcesWell-characterized
Xanthan Gum→bindingemulsion stabilisinggel formingbindingemulsion stabilisinggel formingNo flags in our sourcesWell-characterized
Isoleucine→antistatichair conditioningskin conditioningantistatichair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Proline→hair conditioningskin conditioninghair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Threonine→antistatichair conditioninghair waving or straighteningantistatichair conditioninghair waving or straighteningNo flags in our sourcesCosIng-catalogued
Histidine→humectantantistaticskin conditioninghumectantantistaticskin conditioningNo flags in our sourcesCosIng-catalogued
Phenylalanine→fragrancehair conditioningskin conditioningfragrancehair conditioningskin conditioningNo flags in our sourcesCosIng-catalogued
Magnolia Officinalis Bark Extract→antimicrobialskin conditioningantimicrobialskin conditioningNo flags in our sourcesCosIng-catalogued
Betula Alba Bark Extract→perfumingfragranceflavouringperfumingfragranceflavouringNo flags in our sourcesCosIng-catalogued
Crambe Maritima Extract→hair conditioningskin protectinghair conditioningskin protectingNo flags in our sourcesCosIng-catalogued
Ulmus Fulva Bark Extract→moisturisingmoisturisingNo flags in our sourcesCosIng-catalogued
Caesalpinia Spinosa Fruit Extract→skin protectingskin protectingNo flags in our sourcesCosIng-catalogued
Sodium Hya→—Not in our sourcesNo data