Stella by Stella McCartney Alter-Care Serum Versus Biossance Squalane + Copper Peptide Rapid Plumping Serum

Stella by Stella McCartney Alter-Care Serum Versus Biossance Squalane + Copper Peptide Rapid Plumping Serum Detailed comparison of Stella by Stella McCartney Alter-Care Serum versus Biossance Squalane + Copper Peptide Rapid Plumping Serum Original. This hydrating serum is formulated around Squalane and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Squalane and Sodium Hyaluronate to hydrate skin and soften the look of wrinkles. No concerns Water Glycerin Propanediol Squalane Caprylic/Capric Triglyceride Pentylene Glycol Polyglycerin-3 Maris Aqua Sodium Hyaluronate Vaccinium Vitis-Idaea Fruit Extract Crithmum Maritimum Extract Palmaria Palmata Extract Hydrogenated Vegetable Oil Tocopheryl Acetate Tocopherol Jojoba Esters Xanthan Gum Hydrogenated Coco-Glycerides Hydroxyacetophenone Cetearyl Glucoside Sodium Stearoyl Glutamate Alcaligenes Polysaccharides Citric Acid Sodium Citrate Gluconolactone Glucose Calcium Gluconate Caprylic/Capric/Succinic Triglyceride Cetearyl Alcohol Sodium Benzoate Parfum Water, Glycerin, Propanediol, Squalane, Caprylic/Capric Triglyceride, Pentylene Glycol, Polyglycerin-3, Maris Aqua, Sodium Hyaluronate, Vaccinium Vitis-Idaea Fruit Extract, Crithmum Maritimum Extract, Palmaria Palmata Extract, Hydrogenated Vegetable Oil, Tocopheryl Acetate, Tocopherol, Jojoba Esters, Xanthan Gum, Hydrogenated Coco-Glycerides, Hydroxyacetophenone, Cetearyl Glucoside, Sodium Stearoyl Glutamate, Alcaligenes Polysaccharides, Citric Acid, Sodium Citrate, Gluconolactone, Glucose, Calcium Gluconate, Caprylic/Capric/Succinic Triglyceride, Cetearyl Alcohol, Sodium Benzoate, Parfum Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Copper Tripeptide-1 Acmella Oleracea Extract Ectoin Tetrapeptide-30 Palmitoyl Hexapeptide-52 Copper PCA Panthenol Sodium Polyglutamate Camellia Sinensis Leaf Extract Aloe Barbadensis Flower Extract Passiflora Incarnata Flower Extract Melia Azadirachta Leaf Extract Solanum Melongena Fruit Extract Curcuma Longa Root Extract Ocimum Basilicum Flower/Leaf Extract Coccinia Indica Fruit Extract Melia Azadirachta Flower Extract Ocimum Sanctum Leaf Extract Corallina Officinalis Extract Polyacrylate Crosspolymer-6 Acacia Senegal Gum Phenoxyethanol Ethylhexylglycerin Caprylyl Glycol Water, Glycerin, Propanediol, Squalane, Sodium Hyaluronate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Copper Tripeptide-1, Acmella Oleracea Extract, Ectoin, Tetrapeptide-30, Palmitoyl Hexapeptide-52, Copper PCA, Panthenol, Sodium Polyglutamate, Camellia Sinensis Leaf Extract, Aloe Barbadensis Flower Extract, Passiflora Incarnata Flower Extract, Melia Azadirachta Leaf Extract, Solanum Melongena Fruit Extract, Curcuma Longa Root Extract, Ocimum Basilicum Flower/Leaf Extract, Coccinia Indica Fruit Extract, Melia Azadirachta Flower Extract, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Polyacrylate Crosspolymer-6, Acacia Senegal Gum, Xanthan Gum, Phenoxyethanol, Ethylhexylglycerin, Citric Acid, Caprylyl Glycol 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. Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. It’s often used to: Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent. Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity. In skincare, it works as a hume