SkinCeuticals Triple Lipid Restore 2:4:2 Versus Paula's Choice C15 Super Booster

SkinCeuticals Triple Lipid Restore 2:4:2 Versus Paula's Choice C15 Super Booster Detailed comparison of SkinCeuticals Triple Lipid Restore 2:4:2 versus Paula's Choice C15 Super Booster. This barrier-repair moisturizer is formulated around Cholesterol and Ceramide NP to strengthen the skin barrier and soften the look of wrinkles. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. Water Dimethicone Hydrogenated Polyisobutene Glycerin Cholesterol C12-15 Alkyl Benzoate Ceramide NP Helianthus Annuus Seed Oil Unsaponifiables Bis-PEG-18 Methyl Ether Dimethyl Silane Sodium Polyacrylate PEG-10 Dimethicone Nylon-12 Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone Dimethicone/PEG-10/15 Crosspolymer Phenoxyethanol Disteardimonium Hectorite Hydroxyethylpiperazine Ethane Sulfonic Acid Ammonium Polyacryloyldimethyl Taurate Chlorphenesin Caprylyl Glycol PEG/PPG-18/18 Dimethicone Propylene Carbonate Disodium EDTA Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer Adenosine Dipropylene Glycol Lavandula Angustifolia Oil Rosmarinus Officinalis Leaf Oil T-Butyl Alcohol Mentha Piperita Oil Sodium Citrate Linalool Isobutane Ceramide EOP BHT Tocopherol Limonene Water, Dimethicone, Hydrogenated Polyisobutene, Glycerin, Cholesterol, C12-15 Alkyl Benzoate, Ceramide NP, Helianthus Annuus Seed Oil Unsaponifiables, Bis-PEG-18 Methyl Ether Dimethyl Silane, Sodium Polyacrylate, PEG-10 Dimethicone, Nylon-12, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, Dimethicone/PEG-10/15 Crosspolymer, Phenoxyethanol, Disteardimonium Hectorite, Hydroxyethylpiperazine Ethane Sulfonic Acid, Ammonium Polyacryloyldimethyl Taurate, Chlorphenesin, Caprylyl Glycol, PEG/PPG-18/18 Dimethicone, Propylene Carbonate, Disodium EDTA, Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer, Adenosine, Dipropylene Glycol, Lavandula Angustifolia Oil, Rosmarinus Officinalis Leaf Oil, T-Butyl Alcohol, Mentha Piperita Oil, Sodium Citrate, Linalool, Isobutane, Ceramide EOP, BHT, Tocopherol, Limonene Ascorbic Acid Propanediol Ethoxydiglycol Sodium Hydroxide PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Bisabolol Ferulic Acid Sodium Phytate Decylene Glycol 1,2-Hexanediol Sphingomonas Ferment Extract 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 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Dipropylene Glycol is a synthetically created humectant, stabilizer, and solvent. This ingredient helps: Dipropylene glycol is technically an alcohol, but it belongs to the glycol family (often considered part of the ‘good’ alcohols). This means it is hydrating and gentle on skin unlike drying solvent alcohols like denatured alcohol. As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent. Studies show Dipropylene Glycol is considered safe to use in skincare. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. 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 Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. Tocopherol is a fat-soluble antioxidant kn