Products are split into three levels based on ingredient labels
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Contains ingredients with possible health concernsSTOP
Contains harmful ingredientsSTOP
Kiehl's
Powerful-Strength Line-Reducing Concentrate
Last verified: March 10, 2026
- Propylene Glycol
- Dimethicone
- Glycerin
- Ascorbic Acid
- Ethylhexyl Palmitate
- Cetyl PEG/PPG-10/1 Dimethicone
- Dimethicone Crosspolymer
- Ascorbyl Glucoside
- Cyclohexasiloxane
- Hydroxyethylpiperazine Ethane Sulfonic Acid
- Lauroyl Lysine
- Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer
- Polysilicone-11
- Adenosine
- Hydrolyzed Hyaluronic Acid
- Limonene
- Isobutane
- Citrus Aurantium Dulcis (Orange) Peel Oil
- Citrus Limon Peel Oil/Lemon Peel Oil
- Citral
- Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Why This Product is Rated STOP
Powerful-Strength Line-Reducing Concentrate by Kiehl's has been evaluated by Million Marker and contains ingredients with known health concerns. This product is rated STOP, indicating higher concern.
We recommend avoiding STOP-rated products and seeking safer alternatives from our GO or SLOW categories.
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