105 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.

Kiehl's
Ultra Pure High-Potency 5.0% Niacinamide Serum
959030
Data Robust · 10/10
5 raters · broadly agree
Weakest on Labor

Kiehl's
Ultra Pure High-Potency 1.5% Hyaluronic Acid Serum
9630
Data Robust · 7/7
5 raters · broadly agree
Weakest on Labor
Kiehl's
Since 1851 Hydro-Plumping Re-Texturizing Serum Concentrate (2019 formulation)
9230
Data Robust · 18/18
5 raters · broadly agree
Weakest on Labor

Kiehl's
Hydro-Plumping Re-Texturizing Serum Concentrate (2018 formulation)
9230
Data Robust · 18/18
5 raters · broadly agree
Weakest on Labor

Kiehl's
Hydro-Plumping Hydrating Serum
9230
Data Robust · 20/20
5 raters · broadly agree
Weakest on Labor

Kiehl's
Ultra Pure High-Potency 9.8% Glycolic Acid Serum
8530
raters split 80–100
Data Robust · 7/7
6 raters · split 80–100 on ingredient safety
Kiehl's
Since 1851 Precision Lifting & Pore-Tightening Concentrate (2019 formulation)
439030
raters split 20–94
Data Robust · 32/34
8 raters · split 20–94 on ingredient safety
Kiehl's
Clearly Corrective Dark Spot Solution (2018 formulation)
7530
raters split 70–98
Data Robust · 24/24
7 raters · split 70–98 on ingredient safety

Kiehl's
Clearly Corrective Dark Spot Serum
7530
raters split 70–98
Data Robust · 24/24
7 raters · split 70–98 on ingredient safety
Kiehl's
Since 1851 Clearly Corrective Dark Spot Solution (2019 formulation)
536430
raters split 42–94
Data Robust · 31/31
6 raters · split 42–94 on ingredient safety

Kiehl's
Midnight Recovery Concentrate
5930
raters split 40–100
Data Good · 25/33
6 raters · split 40–100 on ingredient safety
Kiehl's
Vital Skin Strengthening Super Serum
3530
raters split 0–98
Data Robust · 36/36
7 raters · split 0–98 on ingredient safety