Kérastase
Serum Extentioniste Scalp & Hair Serum
uncategorized1.7oz
Cleaner pick · Safest treatment we have rated
Africology Skincare & Spa
Bio Therapy Conditioner+46 on ingredient safety
250ml · 47.50 ZAR · 19 ZAR/100 ml
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 46-point gap between the two loudest voices.
42Greenlens Precautionary ScreenIndependent
vs88Greenlens Tolerance ScreenIndependent
050100
See why, ingredient by ingredientAll 2028 cleaner options, safest first We show the best 12, including the strongest on each axis.
Every rater, every axis
Ingredient safety
46 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 →
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: US NTP Report on Carcinogens · California Proposition 65 · EU Harmonised Classification (CLP Annex VI) · IARC Monographs · ECHA SVHC Candidate List
Environmental
A government authority. Auto-linked to this product, not yet human-reviewed. Checked this week. about this rater →
Labor
Run by a nonprofit. Auto-linked to this product, not yet human-reviewed. This rates Kérastase as a company and applies to everything they make, not this product alone. Checked this week. about this rater →
Coverage & match quality
7 ratings · 3 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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composite recomputes live
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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
Robust29 of 31 characterized
Our sources have reference data on 29 of 31 listed ingredients; 2 are uncharacterized in our data — a gap, not a clean bill.
Worth a look (7)
Endocrine-activeflagged by 3 of 9 lists →
ANSES endocrine candidateflagged by 1 of 9 lists →
Undisclosed fragrance blendflagged by 2 of 9 lists →
EU-restricted (with limits)flagged by 2 of 9 lists →
Health Canada Hotlist — restrictedflagged by 1 of 9 lists →
EU microplastics-restrictedflagged by 1 of 9 lists →
EU-restricted (with limits)flagged by 2 of 9 lists →
No flags in our sources (22)
- Aqua/Water
- Polyquaternium-37
- Paraffinum Liquidum/Mineral Oil
- Amodimethicone
- Polysorbate 20
- Quaternium-87
- Stearyl Alcohol
- Menthoxypropanediolfragrance material
- Safflower Glucoside
- Maltodextrin
- Propylene Glycolcommon irritant
- Candelilla Cera/Candelilla Wax
- PPG-1 Trideceth-6
- Propanediol
- Isopropyl Alcoholcommonly drying
- Trideceth-6
- Polyquaternium-11
- Rose Extract
- Camellia Sinensis Leaf Extract
- Xanthan Gum
- Tocopherol
- Sodium Citrate
No data in our sources (2)
Not a verdict — our authorities simply have no reference for these.
What these ingredient tags mean (3)
These describe what an ingredient is, not whether it is a problem. The stance marks above are the ratings; these are not.
commonly dryingIsopropyl Alcohol
- Isopropyl Alcohol: A fast-evaporating solvent with a drying finish, common in toners and hand products. International Chemical Safety Card ICSC 0554, Isopropyl alcohol, prepared by an international group of experts for the ILO and WHO: "Repeated or prolonged contact with skin may cause dryness and cracking." It describes a stronger exposure than a cosmetic formula.
common irritantPropylene Glycol
- Propylene Glycol: A solvent that shows up in patch-test clinics, more often as irritation than as allergy. American Contact Dermatitis Society, Allergen of the Year 2018 (Jacob SE, Scheman A, McGowan MA, Dermatitis 2018;29(1):3-5).
undeclared fragrance blendParfum/Fragrance
- Parfum/Fragrance: 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.
Where this came from
Cruelty-free status recorded from peta.org ↗
Researched facts on Greenlens always carry the page that stated them — nothing is inferred from a model's memory.