Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Bliss Glow & Hydrate Day Serum Versus Paula's Choice Discoloration Repair Serum

Bliss Glow & Hydrate Day Serum Versus Paula's Choice Discoloration Repair Serum Detailed comparison of Bliss Glow & Hydrate Day Serum versus Paula's Choice Discoloration Repair Serum. This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate

This source-based comparison does not add ratings or recommend a winner.

Bliss Glow & Hydrate Day Serum Versus Paula's Choice Discoloration Repair Serum Detailed comparison of Bliss Glow & Hydrate Day Serum versus Paula's Choice Discoloration Repair Serum. This hydrating serum is formulated around Niacinamide and Sodium Hyaluronate to hydrate skin and brighten dull-looking skin. This brightening serum is formulated around Niacinamide and Tranexamic Acid to fade the look of dark spots and brighten dull-looking skin. Water Niacinamide Glycerin Propanediol Aloe Barbadensis Leaf Juice Coco-Caprylate/Caprate Dimethicone C15-19 Alkane Sodium Hyaluronate Tocopherol Tocopheryl Acetate Glycyrrhiza Glabra Root Extract Glycine Soja Oil Helianthus Annuus Seed Oil Avena Sativa Kernel Oil Xanthan Gum Acacia Senegal Gum Cetearyl Olivate Saccharide Isomerate Caprylyl Glycol Shea Butter Ethyl Esters Polyacrylate Crosspolymer-6 Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Polyglyceryl-4 Laurate/Succinate Sorbitan Olivate Glyceryl Stearate Lauryl Glucoside Hexylene Glycol Sodium Citrate Phenoxyethanol Ethylhexylglycerin Potassium Sorbate Sodium Benzoate Citric Acid Sodium Hydroxide Parfum Water, Niacinamide, Glycerin, Propanediol, Aloe Barbadensis Leaf Juice, Coco-Caprylate/Caprate, Dimethicone, C15-19 Alkane, Sodium Hyaluronate, Tocopherol, Tocopheryl Acetate, Glycyrrhiza Glabra Root Extract, Glycine Soja Oil, Helianthus Annuus Seed Oil, Avena Sativa Kernel Oil, Xanthan Gum, Acacia Senegal Gum, Cetearyl Olivate, Saccharide Isomerate, Caprylyl Glycol, Shea Butter Ethyl Esters, Polyacrylate Crosspolymer-6, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyglyceryl-4 Laurate/Succinate, Sorbitan Olivate, Glyceryl Stearate, Lauryl Glucoside, Hexylene Glycol, Sodium Citrate, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate, Citric Acid, Sodium Hydroxide, Parfum Tranexamic Acid C13-15 Alkane Caprylic/Capric Triglyceride Dicaprylyl Carbonate Ethyl Macadamiate Behenyl Alcohol Butylene Glycol Silybum Marianum Seed Oil Lactobacillus/Coconut Fruit Juice Ferment Filtrate Lecithin Bakuchiol Hydrogenated Lecithin Allantoin Boerhavia Diffusa Root Extract Glycine Soja Sterols Sodium Phytate Malic Acid Water, Niacinamide, Glycerin, Tranexamic Acid, C13-15 Alkane, Caprylic/Capric Triglyceride, Dicaprylyl Carbonate, Ethyl Macadamiate, Behenyl Alcohol, Glyceryl Stearate, Butylene Glycol, Silybum Marianum Seed Oil, Tocopherol, Lactobacillus/Coconut Fruit Juice Ferment Filtrate, Lecithin, Bakuchiol, Xanthan Gum, Caprylyl Glycol, Hydrogenated Lecithin, Allantoin, Glycine Soja Oil, Hexylene Glycol, Boerhavia Diffusa Root Extract, Glycine Soja Sterols, Citric Acid, Sodium Phytate, Malic Acid, Phenoxyethanol, Ethylhexylglycerin 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. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. 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. 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-i