StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum Versus The INKEY List 15% Vitamin C And EGF Serum

StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum Versus The INKEY List 15% Vitamin C And EGF Serum Detailed comparison of StriVectin Super-C Retinol Brighten & Correct Vitamin C Serum versus The INKEY List 15% Vitamin C And EGF Serum. This brightening serum is formulated around Sodium Ascorbyl Phosphate and Ascorbic Acid to brighten dull-looking skin and soften the look of wrinkles. This brightening serum is formulated around Ascorbyl Glucoside to brighten dull-looking skin and fade the look of dark spots. Water Sodium Ascorbyl Phosphate Glycereth-7 Triacetate Pentylene Glycol Polysorbate 20 Dipropylene Glycol Glycerin Dimethyl Isosorbide Ascorbyl Glucoside Ascorbic Acid Malpighia Glabra Fruit Juice Retinol Sodium Hyaluronate Myristyl Nicotinate Tamarindus Indica Seed Polysaccharide Orobanche Rapum Extract Malus Domestica Fruit Cell Culture Extract Camellia Sinensis Leaf Extract Xylitylglucoside Bacillus/Sea Salt Ferment Filtrate Hydroxymethoxyphenyl Decanone Anhydroxylitol Adenosine Xylitol Glucose Ethylhexylglycerin Lecithin Xanthan Gum Acrylates/C10-30 Alkyl Acrylate Crosspolymer Propanediol Maltodextrin Rhizobian Gum Mica Parfum Limonene Linalool Geraniol Citral Citronellol Benzyl Benzoate Chlorphenesin Phenoxyethanol BHT BHA Sodium Benzoate Potassium Sorbate CI 77491 CI 77891 Water, Sodium Ascorbyl Phosphate, Glycereth-7 Triacetate, Pentylene Glycol, Polysorbate 20, Dipropylene Glycol, Glycerin, Dimethyl Isosorbide, Ascorbyl Glucoside, Ascorbic Acid, Malpighia Glabra Fruit Juice, Retinol, Sodium Hyaluronate, Myristyl Nicotinate, Tamarindus Indica Seed Polysaccharide, Orobanche Rapum Extract, Malus Domestica Fruit Cell Culture Extract, Camellia Sinensis Leaf Extract, Xylitylglucoside, Bacillus/Sea Salt Ferment Filtrate, Hydroxymethoxyphenyl Decanone, Anhydroxylitol, Adenosine, Xylitol, Glucose, Ethylhexylglycerin, Lecithin, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Propanediol, Maltodextrin, Rhizobian Gum, Mica, Parfum, Limonene, Linalool, Geraniol, Citral, Citronellol, Benzyl Benzoate, Chlorphenesin, Phenoxyethanol, BHT, BHA, Sodium Benzoate, Potassium Sorbate, CI 77491, CI 77891 Sodium Hydroxide PEG-40 Hydrogenated Castor Oil Benzyl Alcohol Butylene Glycol Sodium Metabisulfite Dehydroacetic Acid Phytic Acid Oligopeptide-1 Water, Ascorbyl Glucoside, Sodium Hydroxide, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Benzyl Alcohol, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Sodium Metabisulfite, Dehydroacetic Acid, Phytic Acid, Oligopeptide-1 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. Ascorbyl Glucoside (AA-2G) is one of the most stable vitamin C derivatives out there. It's made by attaching a glucose molecule to ascorbic acid; this glucose "cap" shields the vitamin C from air, light, heat, and metal ions that normally cause pure ascorbic acid to oxidize. Once on your skin, the enzyme alpha-glucosidase snips off the glucose and gradually releases active ascorbic acid right where it's needed. Basically, it behaves like a slow-release pro-vitamin C with less of a stinging that high-strength ascorbic acid can cause. The research supports the classic vitamin C benefits as well. In lab and human studies, AA-2G slowed down the skin's production of melanin (the pigment behind dark spots) and helped shield skin cells against sun damage better than ascorbyl phosphate. These studies also showed AA-2G released vitamin C over a longer period. A frequently cited manufacturer trial found that a 2% AA-2G face cream significantly improved wrinkle depth and skin roughness after 45 days. And in 2009, a clinical trial showed it meaningfully lightened dark patches on the gums compared to a placebo. There's also collagen-synthesis support (since vitamin C is a required cofactor for that) and an antioxidant effect too. Typical usage is usually between 0.5-5% and most studies/products land around 2%. AA-2G performs best when formulated at a mildly acidic pH (~5-7) which is much gentler than the pH that pure vitamin C demands (~2.5-3.5). Just one thing worth knowing: the in-skin conversation rate is only about 55-60% by weight. So a 5% AA-2G product delivers roughly 2.75-3% of actual active vitamin C. On top of that, skin absorption is relatively low because the ingredient is water-soluble. 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. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyeth