22 products in the catalog
Ingredient safety
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.
K18Hair
FutureIQ™ biomimetic hair longevity serum
Safety 100
Data Robust · 18/19
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
AirWash™ dry shampoo 4oz
Safety 92
Data Robust · 13/13
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Mini AirWash™ dry shampoo
Safety 92
Data Robust · 13/13
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
AstroLift™ reparative volume spray 1.6oz
Safety 91
Data Robust · 9/9
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
DAMAGE SHIELD protective shampoo 8.5oz
Safety 85
Data Robust · 19/19
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
mini DAMAGE SHIELD protective shampoo 1.8oz
Safety 85
Data Robust · 19/19
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Jumbo DAMAGE SHIELD protective shampoo
Safety 85
Data Robust · 19/19
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Full-Size Leave-In Molecular Repair Hair Mask 50mL
Safety 84
Data Robust · 8/8
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Leave-In Molecular Repair Hair Mask Deluxe Sample
Safety 84
Data Robust · 8/8
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Mini Leave-In Molecular Repair Hair Mask 15 mL
Safety 84
Data Robust · 8/8
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
Jumbo Leave-In Molecular Repair Hair Mask 100mL
Safety 84
Data Robust · 8/8
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
salon blowout at home
Safety 84
Data Robust · 8/8
2 raters · broadly agree
Weakest on Ingredient safety
K18Hair
HeatBounce conditioning heat protectant 4oz
Safety 73
Raters split 66–94
Data Robust · 39/44
2 raters · split 66–94 on ingredient safety
K18Hair
HeatBounce 1.6 oz
Safety 73
Raters split 66–94
Data Robust · 39/44
2 raters · split 66–94 on ingredient safety
K18Hair
TripleBright oxidation defense purple shampoo
Safety 64
Raters split 56–88
Data Robust · 33/34
2 raters · split 56–88 on ingredient safety
K18Hair
DAMAGE SHIELD protective conditioner 8.5oz
Safety 62
Raters split 55–82
Data Robust · 29/29
2 raters · split 55–82 on ingredient safety
K18Hair
mini DAMAGE SHIELD protective conditioner 1.8oz
Safety 62
Raters split 55–82
Data Robust · 29/29
2 raters · split 55–82 on ingredient safety
K18Hair
Jumbo DAMAGE SHIELD protective conditioner
Safety 62
Raters split 55–82
Data Robust · 29/29
2 raters · split 55–82 on ingredient safety
K18Hair
PEPTIDE PREP™ detox shampoo 8.5oz
Safety 60
Raters split 52–82
Data Robust · 18/18
2 raters · split 52–82 on ingredient safety
K18Hair
mini PEPTIDE PREP™ detox shampoo 1.8oz
Safety 60
Raters split 52–82
Data Robust · 18/18
2 raters · split 52–82 on ingredient safety
K18Hair
Jumbo PEPTIDE PREP™ detox shampoo
Safety 60
Raters split 52–82
Data Robust · 18/18
2 raters · split 52–82 on ingredient safety
K18Hair
K18 x Future Society Limited Edition Scent Mask
Safety 55
Raters split 46–82
Data Robust · 28/28
2 raters · split 46–82 on ingredient safety