Bronner Bros.
Bronner Brothers Tropical Roots Stimulating Growth Oil for All Natural Hair Styles (2019 formulation)
Hair Products For People Of Color
Cleaner pick · Safest treatment we have rated
Act+Acre
Daily Hydro Scalp Serum+70 on ingredient safety
$24
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 77-point gap between the two loudest voices.
8Greenlens Precautionary ScreenIndependent
vs85Health Canada Ingredient HotlistGovernment
050100
See why, ingredient by ingredientAll 2764 cleaner options, safest first We show the best 12, including the strongest on each axis.
Every rater, every axis
Ingredient safety
77 pts apartA 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 →
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 →
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 →
Also screened, nothing found: US NTP Report on Carcinogens
Environmental
Also screened, nothing found: EU Microplastics Restriction
Coverage & match quality
9 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
Good25 of 31 characterized
Our sources have reference data on 25 of 31 listed ingredients; 6 are uncharacterized in our data — a gap, not a clean bill.
Worth a look (6)
EU-prohibitedflagged by 5 of 9 lists
Carcinogen-linkedflagged by 5 of 9 lists
Undisclosed fragrance blendflagged by 2 of 9 lists
EU-regulated fragrance allergenflagged by 1 of 9 lists
IARC possible carcinogen (Group 2B)flagged by 1 of 9 lists
Persistent / bioaccumulativeflagged by 1 of 9 lists
No flags in our sources (19)
- CANOLA OIL
- ISOPROPYL MYRISTATEcomedogenic in testing
- RICINUS COMMUNIS SEED OIL
- PRUNUS AMYGDALUS DULCIS OIL
- CAMELINA SATIVA SEED OIL
- COCOS NUCIFERA OIL
- ROSMARINUS OFFICINALIS OIL
- CARTHAMUS TINCTORIUS SEED OIL
- ACHILLEA MILLEFOLIUM FLOWER EXTRACT
- RUMEX ACETOSELLA EXTRACT
- ULMUS FULVA BARK
- SALVIA OFFICINALIS EXTRACT
- LAWSONIA INERMIS EXTRACT
- PRUNUS SEROTINA BARK EXTRACT
- JUGLANS NIGRA LEAF EXTRACT
- CHAMOMILLA RECUTITA EXTRACT
- MEDICAGO SATIVA LEAF POWDER
- TRITICUM VULGARE GERM
- PANAX GINSENG EXTRACT
No data in our sources (6)
- EUCALYPTUS GLOBULES LEAF OIL
- MALALEUCA ALTERNIFOLIA OIL
- SYMPHYTUM OFFICINALE EXTRACT
- ARCTIUM LAPPA ROOT
- HYSSOPUS OFFICINALIS LEAF POWDER
- CHOLECALIFEROL
Not a verdict — our authorities simply have no reference for these.
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.
comedogenic in testingISOPROPYL MYRISTATE
- ISOPROPYL MYRISTATE: A light emollient, and the ester the rabbit-ear literature names first. Fulton JE Jr, Pay SR, Fulton JE 3rd, "Comedogenicity of current therapeutic products, cosmetics, and ingredients in the rabbit ear", J Am Acad Dermatol 1984;10(1):96-105, PMID 6229554. The openly readable abstract names this ingredient among its "ingredient offenders", in prose and without a numeric rating: "Ingredient offenders include isopropyl myristate and its analogs, such as isopropyl palmitate, isopropyl isostearate, butyl stearate, isostearyl neopentanoate, myristyl myristate..." The rabbit-ear assay rates raw ingredients and does not predict how a finished formula behaves on human skin.
retinoidRETINYL PALMITATE
- RETINYL PALMITATE: A gentler vitamin A ester that the skin converts to retinol. SCCS Opinion on Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate), SCCS/1576/16, which assesses retinyl palmitate by name; EU Regulation (EC) 1223/2009 Annex III entry 376 covers it in the same group as retinol.