Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

MediCube Age-R Glutathione Glow Serum Versus Medik8 Liquid Peptides Advanced MP

MediCube Age-R Glutathione Glow Serum Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of MediCube Age-R Glutathione Glow Serum versus Medik8 Liquid Peptides Advanced MP. This anti-aging serum is formulated around Niacinamide and Glutathione to so

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MediCube Age-R Glutathione Glow Serum Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of MediCube Age-R Glutathione Glow Serum versus Medik8 Liquid Peptides Advanced MP. This anti-aging serum is formulated around Niacinamide and Glutathione to soften the look of wrinkles and brighten dull-looking skin. This anti-aging serum is formulated around Palmitoyl Tripeptide-38 and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture. Water Glycerin PEG-8 Niacinamide Butylene Glycol Methylpropanediol 1,2-Hexanediol Methyl Gluceth-20 Glycereth-26 Bis-PEG-18 Methyl Ether Dimethyl Silane Betaine Carbomer Diphenyl Dimethicone Tromethamine Triethylhexanoin Ethylhexylglycerin C12-14 Alketh-12 Parfum Glutathione Xanthan Gum Hydrogenated Lecithin Adenosine Coptis Japonica Extract Polyglyceryl-10 Oleate Disodium EDTA Saccharide Hydrolysate Polyglyceryl-10 Laurate Panthenol Collagen Theobroma Cacao Seed Extract Dextrin Sodium Hyaluronate Stellaria Media Extract Sorbitan Laurate Prunella Vulgaris Extract Lactobacillus Ferment Fucus Vesiculosus Extract Hydroxyethylcellulose Acetyl Dipeptide-1 Cetyl Ester Lycopodium Clavatum Extract Equisetum Arvense Extract Caprylyl Glycol Hyaluronic Acid Palmitoyl Tripeptide-5 Sodium Hyaluronate Crosspolymer Hydrolyzed Sodium Hyaluronate Hydrolyzed Hyaluronic Acid Acetyl Octapeptide-3 Sodium Acetylated Hyaluronate Hydroxypropyltrimonium Hyaluronate Hydrolyzed Keratin Hydrolyzed Collagen Hydrolyzed Silk Water, Glycerin, PEG-8, Niacinamide, Butylene Glycol, Methylpropanediol, 1,2-Hexanediol, Methyl Gluceth-20, Glycereth-26, Bis-PEG-18 Methyl Ether Dimethyl Silane, Betaine, Carbomer, Diphenyl Dimethicone, Tromethamine, Triethylhexanoin, Ethylhexylglycerin, C12-14 Alketh-12, Parfum, Glutathione, Xanthan Gum, Hydrogenated Lecithin, Adenosine, Coptis Japonica Extract, Polyglyceryl-10 Oleate, Disodium EDTA, Saccharide Hydrolysate, Polyglyceryl-10 Laurate, Panthenol, Collagen, Theobroma Cacao Seed Extract, Dextrin, Sodium Hyaluronate, Stellaria Media Extract, Sorbitan Laurate, Prunella Vulgaris Extract, Lactobacillus Ferment, Fucus Vesiculosus Extract, Hydroxyethylcellulose, Acetyl Dipeptide-1 Cetyl Ester, Lycopodium Clavatum Extract, Equisetum Arvense Extract, Caprylyl Glycol, Hyaluronic Acid, Palmitoyl Tripeptide-5, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Acetyl Octapeptide-3, Sodium Acetylated Hyaluronate, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Keratin, Hydrolyzed Collagen, Hydrolyzed Silk Dimethicone Dimethyl Isosorbide Undecane Arginine Inulin Microcrystalline Cellulose Ceteareth-20 Tridecane Tocopherol Hydroxyacetophenone Palmitoyl Tripeptide-38 Caprylic/Capric Triglyceride Polyacrylate Crosspolymer-6 Palmitoyl Tripeptide-1 Pullulan Tetrapeptide-21 Palmitoyl Tetrapeptide-10 Palmitoyl Tetrapeptide-7 Ammonium Polyacryloyldimethyl Taurate Glyceryl Linoleate Acetyl Hexapeptide-8 Pentapeptide-18 Oligopeptide-1 Arginine/Lysine Polypeptide Sucrose Palmitate Cetyl Palmitate Phenoxyethanol Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Benzotriazolyl Dodecyl P-Cresol Polysorbate 80 Sorbitan Stearate Polysorbate 20 Carnosine Sodium Metabisulfite Dunaliella Salina Extract Helianthus Annuus Seed Oil Hydroxypropyl Cyclodextrin Dimethicone/Vinyl Dimethicone Crosspolymer Sodium Benzoate Pantolactone T-Butyl Alcohol Potassium Sorbate Citric Acid Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer P 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. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air. This ingredient mainly works behind the scenes and helps with: On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it. One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin). Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption. You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%. 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 cor