Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Ilia Bright Start Retinol Alternative Brightening Eye Cream

Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Ilia Bright Start Retinol Alternative Brightening Eye Cream Detailed comparison of Summer Fridays Light Aura Vitamin C + Peptide Eye Cream versus Ilia Bright Start Retinol Alternative Brightening E

This source-based comparison does not add ratings or recommend a winner.

Summer Fridays Light Aura Vitamin C + Peptide Eye Cream Versus Ilia Bright Start Retinol Alternative Brightening Eye Cream Detailed comparison of Summer Fridays Light Aura Vitamin C + Peptide Eye Cream versus Ilia Bright Start Retinol Alternative Brightening Eye Cream. This brightening eye moisturizer is formulated around Niacinamide and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and soften the look of wrinkles. This anti-aging eye moisturizer is formulated around Caffeine and Acetyl Hexapeptide-8 to 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 Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters Jojoba Oil/Macadamia Seed Oil Esters Brassica Campestris/Aleurites Fordi Oil Copolymer Sodium Polyacryloyldimethyl Taurate Moringa Oil/Hydrogenated Moringa Oil Esters Sodium Stearoyl Lactylate Hydroxyacetophenone Squalene Caprylic/Capric/Succinic Triglyceride Citric Acid Phytosteryl Macadamiate Persea Gratissima Fruit Extract Crithmum Maritimum Extract Phytosterols Sodium Citrate CI 77491 Water, Caprylic/Capric Triglyceride, Persea Gratissima Oil, Propanediol, Glycerin, Pentylene Glycol, Cetearyl Alcohol, Candelilla/Jojoba/Rice Bran Polyglyceryl-3 Esters, Jojoba Oil/Macadamia Seed Oil Esters These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Acetyl Hexapeptide-8 (also known as Argireline) is a synthetic hexapeptide that is often called a "topical Botox alternative". It works by mimicking how Botox relaxes muscles; it interferes with the signaling process that tells your facial muscles to contract. This can help soften expression lines like forehead wrinkles or crow's feet over time. The comparison to Botox does have limits because the molecule is water-loving and relatively large. Acetyl Hexapeptide-8 has a hard time absorbing deeply enough through the skin's outer barrier to actually reach the muscles. So whether it truly works the way Botox does at a biological level is still up for debate, but early clinical outcomes are fairly encouraging. A 12 week human study of a multi-ingredient regimen containing this ingredient saw: While some studies have observed improvements in wrinkle appearance, it is important to note that more consistent results are seen in multi-ingredient formulations (vs just Acetyl Hexapeptide-8 alone). Some research studies also used higher concentrations (up to 10%) while this ingredient is usually found in concentrations up to 0.005% in leave-on formulations. Behenyl Alcohol is a type of fatty alcohol (these are different from the drying, solvent alcohols). Fatty Alcohols have hydrating properties and are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils; behenyl alcohol is derived from the fats of vegetable oils. Emollients help keep your skin soft and hydrated by creating a film that traps moisture in. In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores. Caffeine is a naturally occurring plant compound found in coffee beans, tea leaves, cocoa pods, and guarana. As an antioxidant, caffeine protects your skin from free radical damage caused by UV exposure and envionrmnetal stressors. Early research also shows that caffeine can help calm redness, soothe irritated skin, and support hair growth by stimulating microcirculation in the scalp. You might have seen eye creams marketing caffeine as a depuffing ingredient. This is because it is a vasoconstrictor meaning it can temporarily constrict blood vessels, though clinical evidence for this specific use is still limited. Most skincare products contain this ingredient at concentrations between 1-6%. It is able to penetrate skin easily regardless of skin type or thickness. Just so you know, a very small number of case reports describe caffeine-induced allergy. This ingredient is generally well-tolerat