Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medik8 Crystal Retinal Versus Allies of Skin Retinal 0.1% & Peptides Advanced Repair Night Cream

Medik8 Crystal Retinal Versus Allies of Skin Retinal 0.1% & Peptides Advanced Repair Night Cream Detailed comparison of Medik8 Crystal Retinal 3 versus Allies of Skin Retinal 0.1% & Peptides Advanced Repair Night Cream. This anti-aging serum is formulated arou

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Medik8 Crystal Retinal Versus Allies of Skin Retinal 0.1% & Peptides Advanced Repair Night Cream Detailed comparison of Medik8 Crystal Retinal 3 versus Allies of Skin Retinal 0.1% & Peptides Advanced Repair Night Cream. This anti-aging serum is formulated around 3-O-Ethyl Ascorbic Acid and Tetrahexyldecyl Ascorbate to soften the look of wrinkles and refine skin texture. This anti-aging night moisturizer is formulated around Retinal and Palmitoyl Tripeptide-1 to soften the look of wrinkles and refine skin texture. Water Caprylic/Capric Triglyceride Glycerin Isododecane Cetearyl Olivate Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Cetearyl Alcohol PPG-12/Smdi Copolymer Sorbitan Olivate Tocopheryl Acetate Cyclodextrin Squalane Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Hydroxyacetophenone 3-O-Ethyl Ascorbic Acid Hydroxypropyl Methylcellulose Sodium Hyaluronate Phenoxyethanol Tetrahexyldecyl Ascorbate Daucus Carota Sativa Seed Oil Retinal Rubus Chamaemorus Seed Oil Alumina Isostearic Acid Lecithin Polyglyceryl-3 Polyricinoleate Lonicera Japonica Flower Extract Lonicera Caprifolium Flower Extract Polyhydroxystearic Acid Stearic Acid Sodium Polyaspartate Pentylene Glycol Citric Acid Polysorbate 60 Disodium EDTA Ethylhexylglycerin BHT Sorbitan Isostearate Vanilla Planifolia Fruit Extract Dipteryx Odorata Bean Extract Coumarin CI 14700 CI 77891 Water, Caprylic/Capric Triglyceride, Glycerin, Isododecane, Cetearyl Olivate, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, PPG-12/Smdi Copolymer, Sorbitan Olivate, Tocopheryl Acetate, Cyclodextrin, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyacetophenone, 3-O-Ethyl Ascorbic Acid, Hydroxypropyl Methylcellulose, Sodium Hyaluronate, Phenoxyethanol, Tetrahexyldecyl Ascorbate, Daucus Carota Sativa Seed Oil, Retinal, Rubus Chamaemorus Seed Oil, Alumina, Isostearic Acid, Lecithin, Polyglyceryl-3 Polyricinoleate, Lonicera Japonica Flower Extract, Lonicera Caprifolium Flower Extract, Polyhydroxystearic Acid, Stearic Acid, Sodium Polyaspartate, Pentylene Glycol, Citric Acid, Polysorbate 60, Disodium EDTA, Ethylhexylglycerin, BHT, Sorbitan Isostearate, Vanilla Planifolia Fruit Extract, Dipteryx Odorata Bean Extract, Coumarin, CI 14700, CI 77891 Argania Spinosa Kernel Oil Propanediol Punica Granatum Seed Oil Methylsilanol Hydroxyproline Aspartate Sodium Stearoyl Glutamate Leuconostoc/Radish Root Ferment Filtrate Hydrolyzed Jojoba Esters Beta-Glucan Centella Asiatica Leaf Extract Saccharomyces/Xylinum/Black Tea Ferment Ubiquinone Epigallocatechin Gallate Madecassoside Asiaticoside Camellia Sinensis Leaf Extract Ceramide NP Panthenol Arginine Glycolipids Ornithine Bisabolol Tocopherol Helianthus Annuus Seed Oil Levulinic Acid Phytosteryl Macadamiate Sodium Polyacrylate Phospholipids Hexapeptide-8 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-5 Palmitoyl Tripeptide-38 Sodium Acrylates Copolymer Xanthan Gum Hydrogenated Polyisobutene 1,2-Hexanediol Caprylyl Glycol Potassium Sorbate Polyglyceryl-10 Stearate Water, Glycerin, Argania Spinosa Kernel Oil, Caprylic/Capric Triglyceride, Propanediol, Punica Granatum Seed Oil, Methylsilanol Hydroxyproline Aspartate, Sodium Stearoyl Glutamate, Leuconostoc/Radish Root Ferment Filtrate, Rubus Chamaemorus Seed Oil, Hydrolyzed Jojoba Esters, Beta-Glucan, Centella Asiatica Leaf Extract, Saccharomyces/Xylinum/Black Tea Ferment, Ubiquinone, Epigallocatechin Gallate, Madecassoside, 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. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. Cyclodextrins are ring-shaped sugar molecules made from starch. It is used to stabilize, protect, and slowly release active ingredients. This ingredient can help prevent oxidation, reduce irritation from strong actives, and make certain ingredients absorb better once applied. Once applied to your skin, enzymes gradually break down the cyclodextrin "ring"; this releases the active ingredient in a controlled way. 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. Lecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of phospholipids. Thanks to its amphiphilic structure (water-loving head and oil-loving tail), it is a tr