Style Factor
Lock Booster Twist & Grip, Natural Tea Tree Leaf Oil
Hair Styling Aid
Cleaner pick · Safest styling we have rated
Catrice Cosmetics
Curl Freeze Lash Styling Gel+45 on ingredient safety
$7
Ingredient safetyRaters agree
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Raters split
Ingredient safety
A 58-point gap between the two loudest voices.
42Greenlens Precautionary ScreenIndependent
vs100Greenlens Tolerance ScreenIndependent
050100
See why, ingredient by ingredientAll 1835 cleaner options, safest first We show the best 12, including the strongest on each axis.
Every rater, every axis
Ingredient safety
58 pts apartIndependent — 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 →
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: EU Harmonised Classification (CLP Annex VI) · California Proposition 65 · IARC Monographs · ANSES Endocrine Disruptors · US NTP Report on Carcinogens · ECHA SVHC Candidate List · Health Canada Ingredient Hotlist
Recognized on a safer-ingredients list: US EPA Safer Choice recognizes 69% of ingredients as safer choices — a marker, never a score.
Environmental
Also screened, nothing found: EU Microplastics Restriction
Coverage & match quality
3 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
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Packagingno rating
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0 means ignored. Higher = more weight in your composite.
Ingredients, decoded
Data availability
Robust13 of 13 characterized
Our sources have reference data on all 13 listed ingredients.
Worth a look (2)
Undisclosed fragrance blendflagged by 2 of 9 lists
Mild sensitizer for someflagged by 1 of 9 lists
No flags in our sources (11)
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.
common irritantPropylene Glycol, Melaleuca Alternifolia Leaf Oil
- 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).
- Melaleuca Alternifolia Leaf Oil: An essential oil whose oxidation products carry its sensitising potential; the EU assesses it as a moderate skin sensitiser. SCCS Scientific Opinion on Tea Tree Oil (CAS/EC 68647-73-4 / 285-377-1), SCCS/1681/25, adopted 30 October 2025, which concludes it is a moderate skin sensitiser. It does not set maximum levels of its own: it assesses the concentrations the applicant defended, and finds no concern at 2,0% in shampoo, 1,0% in shower gel, 1,0% in face wash and 0,1% in face cream, for oil conforming to ISO 4730:2017, in adults, in non-sprayable formats. It draws on the earlier SCCP opinions SCCP/1155/08 and SCCP/0843/04 and incorporates their data by reference; it says nothing about their status.
undeclared fragrance blendFragrance
- 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.
humectantGlycerin
- Glycerin: A humectant, and one of the two ingredients a comparison of moisturiser components found made a significant difference to skin hydration. FDA OTC skin protectant monograph, 21 CFR 347.10(h), lists glycerin as a skin protectant at 20 to 45%. On the humectant half: Jeong CB, Han JY, Cho JC, Suh KD, Nam GW, "Analysis of electrical property changes of skin by oil-in-water emulsion components", Int J Cosmet Sci 2013;35(4):402-410, DOI 10.1111/ics.12059, PMID 23621673, found that "glycerine and urea showed significant skin hydration effects compared with other humectants".