One 'n Only

40 products in the catalog

43Poor
avg. across 40 rated products · one axis, not the card composite: 40
products the raters split on

The average covers the ingredient-safety axis only, computed live from each product's raters — never a blended or stored brand score. Open a product to weight the axes yourself.

All products Hair Color And Bleaching 23 Hair Styling Aid 4 Hair Treatment Serum 6 Shampoo 4 Styling 26

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Best overall Worst overall Most contested A–Z

58
One 'n Only
Zero Fuss Styling Cream 4 oz Cream
FairIngredient safety only
58
raters split 42–94
Data Robust · 14/15
5 raters · split 42–94 on ingredient safety
EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Precautionary ScreenIndependent42
Greenlens Ingredient ScanIndependent62
Greenlens Tolerance ScreenIndependent94
ANSES Endocrine DisruptorsGovernment80
54
One 'n Only
Smoothing Styling Hair Cream
PoorIngredient safety only
54
raters split 40–94
Data Robust · 21/21
6 raters · split 40–94 on ingredient safety
EU Harmonised Classification (CLP Annex VI)Government90
Greenlens Precautionary ScreenIndependent42
ANSES Endocrine DisruptorsGovernment40
Greenlens Ingredient ScanIndependent62
Greenlens Tolerance ScreenIndependent94
Health Canada Ingredient HotlistGovernment85