Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum

Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum Detailed comparison of Summer Fridays Light Aura Vitamin C + Peptide Eye Cream versus Kiehl's Powerful-Strength Dark Circle Reduci

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Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum Detailed comparison of Summer Fridays Light Aura Vitamin C + Peptide Eye Cream versus Kiehl's Powerful-Strength Dark Circle Reducing Vitamin C Eye Serum. This brightening eye moisturizer is formulated around Niacinamide and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and soften the look of wrinkles. This brightening eye moisturizer is formulated around Ascorbic Acid and Adenosine to fade the look of dark spots and soften the look of wrinkles. Water Behenyl Alcohol Glycerin Butyrospermum Parkii Butter Pentylene Glycol Coco-Caprylate Cetearyl Alcohol Caprylic/Capric Triglyceride Niacinamide Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Glyceryl Stearate Jojoba Esters Tetrahexyldecyl Ascorbate Isostearyl Isostearate Sodium Hyaluronate Acetyl Hexapeptide-8 Persea Gratissima Oil Rosa Canina Seed Oil Caffeine Allantoin Propanediol Phospholipids Prunus Amygdalus Dulcis Oil Papaver Rhoeas Extract Tocopherol Carica Papaya Leaf Extract Curcuma Longa Root Extract Corallina Officinalis Extract Coccinia Indica Fruit Extract Helianthus Annuus Seed Wax Ocimum Sanctum Leaf Extract Ocimum Basilicum Flower/Leaf Extract Simmondsia Chinensis Seed Oil Bambusa Vulgaris Leaf/Stem Extract Pisum Sativum Extract Glucosamine Hcl Silica Melia Azadirachta Flower Extract Melia Azadirachta Leaf Extract Sodium Stearoyl Glutamate Polyglycerin-3 Diheptyl Succinate Capryloyl Glycerin/Sebacic Acid Copolymer Sorbitan Isostearate Sodium Phytate Glyceryl Caprylate Glyceryl Undecylenate Xanthan Gum 1,2-Hexanediol Caprylyl Glycol Sodium Benzoate Phenethyl Alcohol Polysorbate 60 Mica CI 77891 Water, Behenyl Alcohol, Glycerin, Butyrospermum Parkii Butter, Pentylene Glycol, Coco-Caprylate, Cetearyl Alcohol, Caprylic/Capric Triglyceride, Niacinamide, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Glyceryl Stearate, Jojoba Esters, Tetrahexyldecyl Ascorbate, Isostearyl Isostearate, Sodium Hyaluronate, Acetyl Hexapeptide-8, Persea Gratissima Oil, Rosa Canina Seed Oil, Caffeine, Allantoin, Propanediol, Phospholipids, Prunus Amygdalus Dulcis Oil, Papaver Rhoeas Extract, Tocopherol, Carica Papaya Leaf Extract, Curcuma Longa Root Extract, Corallina Officinalis Extract, Coccinia Indica Fruit Extract, Helianthus Annuus Seed Wax, Ocimum Sanctum Leaf Extract, Ocimum Basilicum Flower/Leaf Extract, Simmondsia Chinensis Seed Oil, Bambusa Vulgaris Leaf/Stem Extract, Pisum Sativum Extract, Glucosamine Hcl, Silica, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Sodium Stearoyl Glutamate, Polyglycerin-3, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Sorbitan Isostearate, Sodium Phytate, Glyceryl Caprylate, Glyceryl Undecylenate, Xanthan Gum, 1,2-Hexanediol, Caprylyl Glycol, Sodium Benzoate, Phenethyl Alcohol, Polysorbate 60, Mica, CI 77891 Propylene Glycol Dimethicone Ascorbic Acid Dimethicone Crosspolymer Cetyl PEG/PPG-10/1 Dimethicone Cyclohexasiloxane Hydroxyethylpiperazine Ethane Sulfonic Acid Lauroyl Lysine Aluminum Starch Octenylsuccinate Polysilicone-11 Adenosine Hydrolyzed Hyaluronic Acid Steareth-20 Chlorhexidine Digluconate N-Hydroxysuccinimide Sodium Citrate Potassium Sorbate Palmitoyl Tripeptide-1 Chrysin Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Palmitoyl Tetrapeptide-7 Citric Acid Biotin Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Dimethicone Crosspolymer, Cetyl PEG/PPG-10/1 Dimethicone, Cyclohexasiloxane, Water, Hydroxyethylpiperazine E These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ci 77891 is a white pigment from Titanium dioxide. It is naturally found in minerals such as rutile and ilmenite. It's main function is to add a white color to cosmetics. It can also be mixed with other colors to create different shades. Ci 77891 is commonly found in sunscreens due to its ability to block UV rays. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!