Knight & Wilson
Colour Freedom Ultra Vibrant Non Permanent Hair Colour With Shea Butter & Argan Oil, Silver Blonde (2020 formulation)
Hair Color And Bleaching
Cleaner pick · Safest color we have rated
Naturally Brite
Henna Hair Dye, Dark Brown+56 on ingredient safety
Ingredient safetyRaters agree
Ranked by safety only. Greenlens earns from qualifying purchases. Payout never affects a rating, a ranking, or the cleaner pick.
Raters split
Ingredient safety
A 65-point gap between the two loudest voices.
25ANSES Endocrine DisruptorsGovernment
vs90EU Harmonised Classification (CLP Annex VI)Government
050100
See why, ingredient by ingredientAll 990 cleaner options, safest first We show the best 12, including the strongest on each axis.
Every rater, every axis
Ingredient safety
65 pts apartIndependent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Independent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Independent — not funded by the brands it rates. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Also screened, nothing found: ECHA SVHC Candidate List · US NTP Report on Carcinogens · California Proposition 65 · IARC Monographs
Environmental
Also screened, nothing found: EU Microplastics Restriction
Coverage & match quality
6 ratings · 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.
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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
Robust17 of 17 characterized
Our sources have reference data on all 17 listed ingredients.
Worth a look (8)
ANSES CMR-listedflagged by 3 of 9 lists →
ANSES endocrine candidateflagged by 3 of 9 lists →
Undisclosed fragrance blendflagged by 2 of 9 lists →
ANSES endocrine candidateflagged by 2 of 9 lists →
EU-restricted (with limits)flagged by 2 of 9 lists →
Health Canada Hotlist — restrictedflagged by 1 of 9 lists →
Mild sensitizer for someflagged by 1 of 9 lists →
EU-restricted (with limits)flagged by 2 of 9 lists →
No flags in our sources (9)
What these ingredient tags mean (2)
These describe what an ingredient is, not whether it is a problem. The stance marks above are the ratings; these are not.
fragrance materialBENZYL SALICYLATE, HEXYL CINNAMAL
- BENZYL SALICYLATE: A faintly floral fragrance component named separately on the label. EU Regulation (EC) 1223/2009, Annex III entry 75: a fragrance substance whose presence must be indicated in the list of ingredients above 0,001% in leave-on and 0,01% in rinse-off products, because of established contact-allergy risk. The entry was replaced by Commission Regulation (EU) 2026/909 of 27 April 2026, which caps it per product type from 0,004% in oral products to 4% in fragrance products; under its footnote (**), products not complying may not be placed on the Union market from 1 January 2027, nor made available from 1 July 2028.
- HEXYL CINNAMAL: A jasmine-like fragrance component named separately on the label. EU Regulation (EC) 1223/2009, Annex III entry 87: a fragrance substance whose presence must be indicated in the list of ingredients above 0,001% in leave-on and 0,01% in rinse-off products, because of established contact-allergy risk.
undeclared fragrance blendPARFUM
- PARFUM: A blend the label does not itemize, so what is in it cannot be read from the ingredient list. EU Regulation (EC) 1223/2009 permits the collective term "parfum"; the SCCS Opinion on Fragrance Allergens (SCCS/1459/11) reviews the contact-allergy evidence for the substances it can contain.