FaceTheory Regena C20 Vitamin C Serum Versus Kiehl's Powerful-Strength Vitamin C Serum
Updated on August 06, 2024
Overview
What they are
These products are both reef safe serums. They have a total of 0 ingredients in common
Cool Features
They both contain Vitamin C
Suited For
They're both likely to be good for anti aging, dry skin, reducing pores, dark spots and better texture
Free From
They both do not contain any harsh alcohols, parabens or sulfates
What's Inside
They both contain oils
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
FaceTheory Regena C20 Vitamin C Serum 6 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
FaceTheory Regena C20 Vitamin C Serum 6 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Key Ingredients
Benefits
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Propylene Glycol
Humectant
Dimethicone
Emollient
Glycerin
Humectant
Ascorbic Acid
Antioxidant
Ethylhexyl Palmitate
Emollient
Cetyl PEG/PPG-10/1 Dimethicone
Emulsifying
Dimethicone Crosspolymer
Emulsion StabilisingAscorbyl Glucoside
Antioxidant
Cyclohexasiloxane
Emollient
Hydroxyethylpiperazine Ethane Sulfonic Acid
BufferingLauroyl Lysine
Skin ConditioningAcrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer
Polysilicone-11
Adenosine
Skin Conditioning
Hydrolyzed Hyaluronic Acid
Humectant
Limonene
Perfuming
Isobutane
Citrus Aurantium Dulcis Peel Oil
Masking
Citrus Limon Peel Oil
Masking
Citral
Perfuming
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Antioxidant
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 Peel Oil, Citrus Limon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
FaceTheory Regena C20 Vitamin C Serum 6 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Reviews
Here's what our community thinks
FaceTheory Regena C20 Vitamin C Serum 6 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Actually noticed a difference in my fine lines with this product. The bottle also lasted me over a year with almost daily use.
