Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medik8 Clarity Peptides Versus Neocutis Bio Serum Firm

Medik8 Clarity Peptides Versus Neocutis Bio Serum Firm Detailed comparison of Medik8 Clarity Peptides versus Neocutis Bio Serum Firm. This brightening serum is formulated around Niacinamide and Zinc PCA to brighten dull-looking skin and refine the look of pore

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Medik8 Clarity Peptides Versus Neocutis Bio Serum Firm Detailed comparison of Medik8 Clarity Peptides versus Neocutis Bio Serum Firm. This brightening serum is formulated around Niacinamide and Zinc PCA to brighten dull-looking skin and refine the look of pores. This serum is formulated around Aminopropyl Ascorbyl Phosphate to reduce redness and brighten. Water Niacinamide Caprylic/Capric Triglyceride Acetyl Glucosamine Glyceryl Stearate Citrate Dimethicone Zinc PCA Glycerin Polyglyceryl-3 Stearate Crambe Abyssinica Seed Oil Hydroxyacetophenone Hydrogenated Lecithin Behenyl Alcohol Cetearyl Alcohol Phenoxyethanol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Disodium EDTA Xanthan Gum Cetyl Palmitate Carnosine Ethylhexylglycerin Polysorbate 80 Palmitoyl Tetrapeptide-10 Sorbitan Stearate Sodium Hyaluronate Polysorbate 60 Sorbitan Isostearate Sodium Benzoate Citric Acid Tocopherol Butylene Glycol 1,2-Hexanediol Caprylhydroxamic Acid Water, Niacinamide, Caprylic/Capric Triglyceride, Acetyl Glucosamine, Glyceryl Stearate Citrate, Dimethicone, Zinc PCA, Glycerin, Polyglyceryl-3 Stearate, Crambe Abyssinica Seed Oil, Hydroxyacetophenone, Hydrogenated Lecithin, Behenyl Alcohol, Cetearyl Alcohol, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Disodium EDTA, Xanthan Gum, Cetyl Palmitate, Carnosine, Ethylhexylglycerin, Polysorbate 80, Palmitoyl Tetrapeptide-10, Sorbitan Stearate, Sodium Hyaluronate, Polysorbate 60, Sorbitan Isostearate, Sodium Benzoate, Citric Acid, Tocopherol, Butylene Glycol, 1,2-Hexanediol, Caprylhydroxamic Acid Squalane Aminopropyl Ascorbyl Phosphate Hydrolyzed Sodium Hyaluronate Cutaneous Lysate Tetrapeptide-21 Palmitoyl Tripeptide-1 Acetate Pullulan Ethylene/Acrylic Acid Copolymer Proline Arginine Glycine Glutamine Chlorphenesin Nannochloropsis Oculata Extract Capryloyl Carnosine Poloxamer 338 Silica Trifluoroacetyl Tripeptide-2 Dextran Potassium Sorbate Sodium Hydroxide Water, Glycerin, Caprylic/Capric Triglyceride, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Squalane, Aminopropyl Ascorbyl Phosphate, Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Cutaneous Lysate, Tetrapeptide-21, Palmitoyl Tripeptide-1 Acetate, Butylene Glycol, Ethylhexylglycerin, Pullulan, Acetyl Glucosamine, Ethylene/Acrylic Acid Copolymer, Polysorbate 60, Proline, Arginine, Glycine, Glutamine, Chlorphenesin, Nannochloropsis Oculata Extract, Capryloyl Carnosine, Poloxamer 338, Silica, Trifluoroacetyl Tripeptide-2, Dextran, Sorbitan Isostearate, Potassium Sorbate, Sodium Benzoate, Tocopherol, Disodium EDTA, Sodium Hydroxide, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Acetyl Glucosamine is an antioxidant and humectant. It is an amino acid sugar and is naturally found in our skin. The cool thing about this ingredient? It helps the skin produce hyaluronic acid and boost hydration. It also has antioxidant benefits to protect skin cells. When paired with niacinamide, Acetyl Glucosamine has been shown to be effective at reducing discoloration. 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. 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%. 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 les