Vichy Liftactiv B3 Serum Dark Spots & Wrinkles Versus Paula's Choice Clinical Niacinamide 20% Treatment

Vichy Liftactiv B3 Serum Dark Spots & Wrinkles Versus Paula's Choice Clinical Niacinamide 20% Treatment Detailed comparison of Vichy Liftactiv B3 Serum Dark Spots & Wrinkles versus Paula's Choice Clinical Niacinamide 20% Treatment. This brightening serum is formulated around Niacinamide and Glycolic Acid to fade the look of dark spots and soften the look of wrinkles. This pore-care treatment is formulated around Niacinamide and Acetyl Glucosamine to refine the look of pores and refine skin texture. No concerns Water Butylene Glycol Niacinamide Hydroxyethylpiperazine Ethane Sulfonic Acid Glycerin Hydroxyethyl Urea Propylene Glycol Glycolic Acid Tranexamic Acid Allantoin Sodium Hydroxide Phenoxyethanol Chlorphenesin Ascorbyl Glucoside Caprylyl Glycol Hydrolyzed Rice Protein Vitreoscilla Ferment Trisodium Ethylenediamine Disuccinate Xanthan Gum Pentylene Glycol Water, Butylene Glycol, Niacinamide, Hydroxyethylpiperazine Ethane Sulfonic Acid, Glycerin, Hydroxyethyl Urea, Propylene Glycol, Glycolic Acid, Tranexamic Acid, Allantoin, Sodium Hydroxide, Phenoxyethanol, Chlorphenesin, Ascorbyl Glucoside, Caprylyl Glycol, Hydrolyzed Rice Protein, Vitreoscilla Ferment, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Pentylene Glycol Niacinamide 20% Acetyl Glucosamine Glycyrrhiza Glabra Root Extract Spiraea Ulmaria Extract Portulaca Oleracea Extract Camellia Japonica Flower Extract Epigallocatechin Gallate Boerhavia Diffusa Root Extract Camellia Sinensis Leaf Extract Lecithin Pullulan Panthenol Silica Sclerotium Gum Propanediol Sodium Phytate Ethylhexylglycerin Water, Niacinamide 20%, Pentylene Glycol, Butylene Glycol, Glycerin, Acetyl Glucosamine, Ascorbyl Glucoside, Glycyrrhiza Glabra Root Extract, Spiraea Ulmaria Extract, Portulaca Oleracea Extract, Camellia Japonica Flower Extract, Epigallocatechin Gallate, Boerhavia Diffusa Root Extract, Camellia Sinensis Leaf Extract, Allantoin, Lecithin, Pullulan, Panthenol, Silica, Xanthan Gum, Sclerotium Gum, Propanediol, Sodium Phytate, Phenoxyethanol, Ethylhexylglycerin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. 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-s