BeautyAct 20% Vita-C Brightening Serum Versus The Outset Firming Vegan Collagen Prep Serum

BeautyAct 20% Vita-C Brightening Serum Versus The Outset Firming Vegan Collagen Prep Serum Detailed comparison of BeautyAct 20% Vita-C Brightening Serum versus The Outset Firming Vegan Collagen Prep Serum. This brightening serum is formulated around Ascorbyl Tetraisopalmitate and Tocopherol to brighten dull-looking skin and fade the look of dark spots. This serum is formulated around Tetrahexyldecyl Ascorbate to brighten and minimize pores. Water Ascorbyl Tetraisopalmitate C15-19 Alkane Propanediol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Methylpropanediol Squalane Glycerin Tocopherol Tocopheryl Acetate Helianthus Annuus Seed Oil Biosaccharide Gum-1 Phenoxyethanol Disodium EDTA Xanthan Gum Ethylhexylglycerin Citric Acid Polysorbate 60 Sodium Lactate Sodium Hydroxide Water, Ascorbyl Tetraisopalmitate, C15-19 Alkane, Propanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Methylpropanediol, Squalane, Glycerin, Tocopherol, Tocopheryl Acetate, Helianthus Annuus Seed Oil, Biosaccharide Gum-1, Phenoxyethanol, Disodium EDTA, Xanthan Gum, Ethylhexylglycerin, Citric Acid, Polysorbate 60, Sodium Lactate, Sodium Hydroxide Triheptanoin Coco-Caprylate/Caprate Sodium Polyacryloyldimethyl Taurate Capryloyl Glycerin/Sebacic Acid Copolymer Cassia Angustifolia Seed Polysaccharide Heterotheca Inuloides Flower Extract Chenopodium Quinoa Seed Extract Poncirus Trifoliata Fruit Extract Hydrolyzed Brassica Napus Seedcake Extract Sr-Hydrozoan Polypeptide-1 Castor Oil/Ipdi Copolymer Diheptyl Succinate Dilinoleic Acid/Butanediol Copolymer Caprylyl Glycol Hydrolyzed Jojoba Esters Lysolecithin Sclerotium Gum Tetrahexyldecyl Ascorbate Tetrasodium Glutamate Diacetate Pullulan Jojoba Esters Silica Sodium Benzoate Sodium Formate Sodium Glycolate Sodium PCA Potassium Hydroxide Potassium Sorbate Water, Propanediol, Glycerin, Triheptanoin, Coco-Caprylate/Caprate, Sodium Polyacryloyldimethyl Taurate, Capryloyl Glycerin/Sebacic Acid Copolymer, Cassia Angustifolia Seed Polysaccharide, Helianthus Annuus Seed Oil, Heterotheca Inuloides Flower Extract, Chenopodium Quinoa Seed Extract, Poncirus Trifoliata Fruit Extract, Hydrolyzed Brassica Napus Seedcake Extract, Sr-Hydrozoan Polypeptide-1, Castor Oil/Ipdi Copolymer, Diheptyl Succinate, Phenoxyethanol, Dilinoleic Acid/Butanediol Copolymer, Caprylyl Glycol, Hydrolyzed Jojoba Esters, Lysolecithin, Sclerotium Gum, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Tetrasodium Glutamate Diacetate, Pullulan, Xanthan Gum, Jojoba Esters, Silica, Citric Acid, Sodium Benzoate, Sodium Formate, Sodium Glycolate, Sodium Hydroxide, Sodium PCA, Potassium Hydroxide, Potassium Sorbate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. 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. Helianthus Annuus Seed Oil is a plant oil derived from the seeds of a sunflower. It is rich in fatty acids, primarily linoleic acid and oleic acid. This gives it emollient and skin conditioning properties. The reason this ingredient is so effective is because it forms a thin film on the skin that reduces transepidermal water loss (TEWL) while supplying linoleic acid to the stratum corneum to improve barrier strength. The high linoleic acid content is particularly n