Paula's Choice C15 Super Booster Versus Peach & Lily Transparen-C Pro Spot Treatment

Paula's Choice C15 Super Booster Versus Peach & Lily Transparen-C Pro Spot Treatment Detailed comparison of Paula's Choice C15 Super Booster versus Peach & Lily Transparen-C Pro Spot Treatment. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. This brightening treatment is formulated around Ascorbyl Tetraisopalmitate and Glycyrrhiza Glabra Root Extract to fade the look of dark spots and brighten dull-looking skin. Water Ascorbic Acid Dipropylene Glycol Propanediol Glycerin Ethoxydiglycol Sodium Hydroxide PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Bisabolol Ferulic Acid Sodium Phytate Decylene Glycol Tocopherol 1,2-Hexanediol Sphingomonas Ferment Extract Phenoxyethanol Water, Ascorbic Acid, Dipropylene Glycol, Propanediol, Glycerin, Ethoxydiglycol, Sodium Hydroxide, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Bisabolol, Ferulic Acid, Sodium Phytate, Decylene Glycol, Tocopherol, 1,2-Hexanediol, Sphingomonas Ferment Extract, Phenoxyethanol Helianthus Annuus Seed Oil Macadamia Ternifolia Seed Oil Ascorbyl Tetraisopalmitate Limnanthes Alba Seed Oil Simmondsia Chinensis Seed Oil Camellia Sinensis Seed Oil Squalane Sodium Acetylated Hyaluronate Hydrolyzed Hyaluronic Acid Glycyrrhiza Glabra Root Extract Sodium Hyaluronate Tranexamic Acid Kojic Dipalmitate Helianthus Annuus Seed Oil, Macadamia Ternifolia Seed Oil, Ascorbyl Tetraisopalmitate, Limnanthes Alba Seed Oil, Simmondsia Chinensis Seed Oil, Camellia Sinensis Seed Oil, Squalane, Sodium Acetylated Hyaluronate, Hydrolyzed Hyaluronic Acid, Glycyrrhiza Glabra Root Extract, Tocopherol, Ferulic Acid, Sodium Hyaluronate, Tranexamic Acid, Kojic Dipalmitate, 1,2-Hexanediol, Water 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. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Ferulic Acid is a plant based antioxidant that can be naturally found in the cell walls of grains like rice, oats, and corn. It has antioxidant and antimicrobial properties, and has the ability to boost the performance of other antioxidants as well. A well-known study found that adding Ferulic Acid to a solution of Vitamins C and E doubled the photoprotection of skin. This is why you'll often see it paired with Vitamin C or Vitamin E serums rather than sold on its own. A 2025 review of 18 human studies found that using Ferulic Acid (0.5-1%) daily for one to three months showed improvements in: As far as allergies go, Ferulic acid is generally well-tolerated but can cause an allergic reaction in very rare cases. It's also worth noting that Ferulic acid is often extracted from plant sources like rice bran or wheat bran, so be sure to path test if you have known grain allergies. Outside of skincare, researchers are also looking into Ferulic Acid for its potential benefits in areas like diabetes, Alzheimer's, and heart health. Tocopherol is a fat-soluble antioxidant known as Vitamin E. You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells. Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes. It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks. This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage. This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there. In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading. Concentrations usually range from 0.1-1% in most leave-on products. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.