FaceTheory Regena C20 Vitamin C Serum
Kiehl's Powerful-Strength Vitamin C Serum

FaceTheory Regena C20 Vitamin C Serum Versus Kiehl's Powerful-Strength Vitamin C Serum

This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles.

This anti-aging serum is formulated around Ascorbic Acid and Ascorbyl Glucoside to soften the look of wrinkles and brighten dull-looking skin.

Serum
Serum
5.00 · 2 reviews
British United Kingdom
American United States

What's inside

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Show highlights for:

Propanediol

Solvent
Helps hydrate Dry Skin IconGood for Barrier Repair Icon

3-O-Ethyl Ascorbic Acid

Skin Conditioning
Vitamin C IconHelps brighten skin IconGood for Minimizing Pores IconHelps reduce Skin Redness IconGood for Scar Healing IconGood for Skin Texture Icon

Olive Oil Polyglyceryl-4 Esters

Surfactant
Oil IconMay worsen Seborrheic Dermatitis IconNot safe for Fungal Acne Icon

Dibutyl Lauroyl Glutamide

Skin Conditioning

Dibutyl Ethylhexanoyl Glutamide

Skin Conditioning

Ferulic Acid

Antimicrobial
Antioxidant IconHelps with Anti-Aging IconHelps brighten skin IconGood for Scar Healing Icon

Propanediol, 3-O-Ethyl Ascorbic Acid, Olive Oil Polyglyceryl-4 Esters, Dibutyl Lauroyl Glutamide, Dibutyl Ethylhexanoyl Glutamide, Ferulic Acid

Propylene Glycol

Humectant
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Dimethicone

Emollient
1 / 0 Silicon IconGood for Scar Healing Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconGood for Barrier Repair Icon

Ascorbic Acid

Antioxidant
Vitamin C IconAntioxidant IconHelps with Anti-Aging IconHelps brighten skin IconGood for Scar Healing IconGood for Dark Spots IconGood for Skin Texture Icon

Ethylhexyl Palmitate

Emollient
2-3 / 0 Bad for Acne Prone Skin IconMay worsen Seborrheic Dermatitis IconMay worsen Keratosis Pilaris IconMay worsen Oily Skin IconNot safe for Fungal Acne Icon

Cetyl PEG/PPG-10/1 Dimethicone

Emulsifying
Silicon Icon

Dimethicone Crosspolymer

Emulsion Stabilising
Silicon Icon

Ascorbyl Glucoside

Antioxidant
Vitamin C IconAntioxidant IconHelps with Anti-Aging IconHelps brighten skin IconGood for Scar Healing Icon

Cyclohexasiloxane

Emollient
Silicon Icon

Hydroxyethylpiperazine Ethane Sulfonic Acid

Buffering

Lauroyl Lysine

Skin Conditioning
Good for Oily Skin Icon

Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer

Polysilicone-11

Silicon IconGood for Oily Skin Icon

Adenosine

Skin Conditioning
Helps with Anti-Aging IconHelps hydrate Dry Skin IconHelps reduce irritation Icon

Hydrolyzed Hyaluronic Acid

Humectant
Hyaluronic Acid IconHelps with Anti-Aging IconHelps hydrate Dry Skin IconGood for Scar Healing Icon

Limonene

Perfuming
Fragrance IconMay worsen Eczema IconMay cause irritation IconMay worsen Perioral Dermatitis IconMay worsen Psoriasis IconMay worsen Rosacea IconEU Allergen Icon

Isobutane

Citrus Aurantium Dulcis Peel Oil

Masking
Oil IconEU Allergen Icon

Citrus Limon Peel Oil

Masking
Oil IconEssential Oil IconFragrance IconCan worsen Dry Skin IconMay cause irritation IconMay worsen Perioral Dermatitis IconMay worsen Psoriasis IconMay worsen Keratosis Pilaris IconEU Allergen Icon

Citral

Perfuming
Fragrance IconMay worsen Eczema IconMay cause irritation IconMay worsen Perioral Dermatitis IconMay worsen Rosacea IconEU Allergen Icon

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Antioxidant
Antioxidant Icon

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

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