Clinique Fresh Pressed Clinical™ Daily + Overnight Boosters with Pure Vitamin C 10% + A (Retinol) Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum

Clinique Fresh Pressed Clinical™ Daily + Overnight Boosters with Pure Vitamin C 10% + A (Retinol) Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum Detailed comparison of Clinique Fresh Pressed Clinical™ Daily + Overnight Boosters with Pure Vitamin C 10% + A (Retinol) versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum. This anti-aging serum is formulated around Ascorbic Acid and Retinol to soften the look of wrinkles and brighten dull-looking skin. This anti-aging serum is formulated around Tripeptide-10 Citrulline and Acetyl Octapeptide-3 to soften the look of wrinkles. Water Ascorbic Acid Glycerin Dimethicone Squalane Butylene Glycol Dipropylene Glycol Acetyl Glucosamine Cucumis Sativus Fruit Extract Hordeum Vulgare Extract Morus Nigra Root Extract Molasses Extract Laminaria Digitata Extract Scutellaria Baicalensis Root Extract Acetyl Hexapeptide-8 Vitis Vinifera Fruit Extract Algae Extract Palmitoyl Hexapeptide-12 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Alcaligenes Polysaccharides Caffeine Sucrose Whey Protein Betaine Salicylic Acid Glycine Soja Protein Sodium Hyaluronate Caprylyl Glycol Sigesbeckia Orientalis Extract Bis-PEG-18 Methyl Ether Dimethyl Silane Propylene Glycol Dicaprate Helianthus Annuus Seedcake Allyl Methacrylates Crosspolymer Carbomer Glyceryl Polymethacrylate Tromethamine Xanthan Gum Potassium Sorbate PEG-8 Polysorbate 20 Sodium Citrate Disodium EDTA Phenoxyethanol Glycine Soja Oil Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer Methyl Trimethicone Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone Polysilicone-11 Methyl Gluceth-20 Retinol Oenothera Biennis Flower Extract Laminaria Saccharina Extract Gelidiella Acerosa Extract Cholesterol Salvia Sclarea Extract Aminopropyl Ascorbyl Phosphate Plankton Extract Glycine Soja Seed Extract Micrococcus Lysate Hypnea Musciformis Extract Tocopheryl Acetate Sodium Hydroxide Calcium Chloride Ammonium Acryloyldimethyltaurate/Vp Copolymer Lecithin BHT Sodium Benzoate Water, Ascorbic Acid, Glycerin, Dimethicone, Squalane, Butylene Glycol, Dipropylene Glycol, Acetyl Glucosamine, Cucumis Sativus Fruit Extract, Hordeum Vulgare Extract, Morus Nigra Root Extract, Molasses Extract, Laminaria Digitata Extract, Scutellaria Baicalensis Root Extract, Acetyl Hexapeptide-8, Vitis Vinifera Fruit Extract, Algae Extract, Palmitoyl Hexapeptide-12, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Alcaligenes Polysaccharides, Caffeine, Sucrose, Whey Protein, Betaine, Salicylic Acid, Glycine Soja Protein, Sodium Hyaluronate, Caprylyl Glycol, Sigesbeckia Orientalis Extract, Bis-PEG-18 Methyl Ether Dimethyl Silane, Propylene Glycol Dicaprate, Helianthus Annuus Seedcake, Allyl Methacrylates Crosspolymer, Carbomer, Glyceryl Polymethacrylate, Tromethamine, Xanthan Gum, Potassium Sorbate, PEG-8, Polysorbate 20, Sodium Citrate, Disodium EDTA, Phenoxyethanol, Glycine Soja Oil, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Methyl Trimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Polysilicone-11, Methyl Gluceth-20, Retinol, Oenothera Biennis Flower Extract, Laminaria Saccharina Extract, Gelidiella Acerosa Extract, Cholesterol, Salvia Sclarea Extract, Aminopropyl Ascorbyl Phosphate, Plankton Extract, Glycine Soja Seed Extract, Micrococcus Lysate, Hypnea Musciformis Extract, Tocopheryl Acetate, Sodium Hydroxide, Calcium Chloride, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Lecithin, BHT, Sodium Benzoate Rosa Centifolia Flower Water Isopropyl Myristate Mannitol Natto Gum Tripeptide-10 Citrulline Acetyl Octapeptide-3 Acetyl Tetrapeptide-11 Acetyl These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Ascorbic Acid is is pure Vitamin C and is the biologically active form used directly by skin. Not only is vitamin C great for your overall health and immune system, but it also has plenty of benefits for your skin. It is best supported by academic literature for: Topical vitamin C has been shown to help neutralize oxidative stress from UV and pollution, helping to improve photoaging and hyperpigmentation when used consistently. One clinical study found that using 5% topical vitamin C for six months improved signs of photodamaged skin, both on the surface and in the deeper structural layers of the skin. While vitamin C doesn’t replace sunscreen, studies show it can boost photoprotection when combined with Vitamin E and ferulic acid. These two ingredients help improve stability and protective effects. The big downside of this ingredient is formulation difficulty. Vitamin C is prone to oxidation and doesn't penetrate the skin unless formulated correctly. Research found that vitamin C absorbs into the skin best at a low pH (< 3.5) with about 20% being the upper limit for effective absorption. Skin levels can saturate after repeated application; this means your skin won’t keep absorbing more once it’s full of vitamin C. This is why more isn’t always better with vitamin C and why very high concentrations don’t necessarily give extra benefits. Ascorbic acid generally works well with many skincare ingredients but can be irritating when combined with other active ingredients. Strong oxidizing acne treatments like benzoyl peroxide can reduce the effectiveness of vitamin C if they are used at the same time; they are often recommended for use at different times of day. Read more about ot