Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medik8 Liquid Peptides Versus Aspect Skincare Eyelift

Medik8 Liquid Peptides Versus Aspect Skincare Eyelift Detailed comparison of Medik8 Liquid Peptides versus Aspect Skincare Eyelift. This anti-aging serum is formulated around Carnosine and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin t

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

Medik8 Liquid Peptides Versus Aspect Skincare Eyelift Detailed comparison of Medik8 Liquid Peptides versus Aspect Skincare Eyelift. This anti-aging serum is formulated around Carnosine and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture. This anti-aging eye moisturizer is formulated around Squalane and Hesperidin Methyl Chalcone to soften the look of wrinkles and hydrate skin. Water Glycerin Butylene Glycol Inulin Sodium Hyaluronate Panthenol Alpha-Glucan Oligosaccharide Carnosine Carbomer Polysorbate 20 Caprylyl Glycol Phenoxyethanol Hydroxypropyl Cyclodextrin Dunaliella Salina Extract Ethylhexylglycerin Citric Acid Palmitoyl Tripeptide-5 Sodium Benzoate Acetyl Hexapeptide-8 Tetrapeptide-21 Pentapeptide-18 Palmitoyl Tripeptide-1 Pantolactone Palmitoyl Tripeptide-38 Palmitoyl Tetrapeptide-7 Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Potassium Sorbate Xanthan Gum Water, Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum Aloe Barbadensis Leaf Juice Caprylic/Capric Triglyceride Stearic Acid Squalane Cetearyl Alcohol Sucrose Stearate Cetearyl Olivate Butyrospermum Parkii Butter Sorbitan Olivate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Soluble Collagen Tocopheryl Acetate Acacia Senegal Gum Malus Domestica Fruit Cell Culture Extract Lecithin Steareth-20 Hesperidin Methyl Chalcone Cucumis Sativus Fruit Extract Glycyrrhiza Glabra Root Extract Sucrose Palmitate Backhousia Citriodora Leaf Extract Citrus Glauca Fruit Extract Davidsonia Jerseyana Fruit Extract Tasmannia Lanceolata Fruit Extract Terminalia Ferdinandiana Fruit Extract Epilobium Angustifolium Flower/Leaf/Stem Extract Retinyl Palmitate Ascorbyl Tetraisopalmitate Biosaccharide Gum-1 N-Hydroxysuccinimide Dipeptide-2 Sodium Metabisulfite Chrysin Avena Sativa Kernel Extract Sodium Hydroxide Water, Glycerin, Aloe Barbadensis Leaf Juice, Caprylic/Capric Triglyceride, Stearic Acid, Squalane, Cetearyl Alcohol, Sucrose Stearate, Cetearyl Olivate, Butyrospermum Parkii Butter, Phenoxyethanol, Sorbitan Olivate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Panthenol, Soluble Collagen, Tocopheryl Acetate, Acacia Senegal Gum, Malus Domestica Fruit Cell Culture Extract, Lecithin, Steareth-20, Hesperidin Methyl Chalcone, Ethylhexylglycerin, Cucumis Sativus Fruit Extract, Glycyrrhiza Glabra Root Extract, Sucrose Palmitate, Backhousia Citriodora Leaf Extract, Citrus Glauca Fruit Extract, Davidsonia Jerseyana Fruit Extract, Tasmannia Lanceolata Fruit Extract, Terminalia Ferdinandiana Fruit Extract, Epilobium Angustifolium Flower/Leaf/Stem Extract, Hydroxypropyl Cyclodextrin, Retinyl Palmitate, Ascorbyl Tetraisopalmitate, Sodium Hyaluronate, Potassium Sorbate, Biosaccharide Gum-1, N-Hydroxysuccinimide, Dipe Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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. This ingredient is used in skincare as a delivery system. It works by "encapsulating" active ingredients with its unique ring shape that is water-loving on the outside and oil-loving on the inside. This improves the stability and absorption of the product into the skin. According to a manufacturer, it also offer some moisturizing effects. Palmitoyl Tetrapeptide-7 (formerly Palmitoyl Tetrapeptide-3) is a synthetic peptide. Its main job is to fight what researchers call "inflammaging". "Inflammaging" is the slow, low-grade chronic inflammation that quietly breaks down collagen as we age. This ingredient calms down a specific inflammation signal in your skin cells (called IL-6). When left unchecked, this signal triggers enzymes that break down collagen and elastin. Clinical testing showed statistically significant improvements in: Studies also found the more of this ingredient used, the more your skin produces Collagen I, fibronectin, and hyaluronic acid. You'll likely see this ingredient paired with Palmitoyl Tripeptide-1 in the well-known Matrixyl 3000 complex for enhanced anti-aging effects. A 3% concentration applied twice daily for two months showed meaningful skin rejuvenation results in clinical panels. Fungal acne note: Usually a palmitic acid component can feed Malassezia in unbound form, but here is is covalently bonded to the peptide. This means it is very difficult for Malassezia to access, and therefore very unlikely to cause fungal acne. Palmitoyl Tri