Typology Woman Periodic - Soothing and Moisturising Serum (Week 1 Serum) Versus Niod Copper Amino Isolate Serum 2:1 (CAIS2)

Typology Woman Periodic - Soothing and Moisturising Serum (Week 1 Serum) Versus Niod Copper Amino Isolate Serum 2:1 (CAIS2) Detailed comparison of Typology Woman Periodic - Soothing and Moisturising Serum (Week 1 Serum) versus Niod Copper Amino Isolate Serum 2:1 (CAIS2). This hydrating serum is formulated around Centaurea Cyanus Flower Water and Sodium Hyaluronate to hydrate skin and calm redness. This serum is formulated around Lactococcus Ferment Lysate to support the skin barrier and reduce redness. Water Centaurea Cyanus Flower Water Dicaprylyl Ether Glycerin 1,2-Hexanediol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Sodium Hyaluronate Saccharide Isomerate Sodium Levulinate Aloe Barbadensis Leaf Juice Powder Isohexadecane Potassium Sorbate Polysorbate 60 Sorbitan Isostearate Bisabolol Citric Acid Sodium Benzoate Sodium Citrate Sodium Hydroxide Water, Centaurea Cyanus Flower Water, Dicaprylyl Ether, Glycerin, 1,2-Hexanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium Hyaluronate, Saccharide Isomerate, Sodium Levulinate, Aloe Barbadensis Leaf Juice Powder, Isohexadecane, Potassium Sorbate, Polysorbate 60, Sorbitan Isostearate, Bisabolol, Citric Acid, Sodium Benzoate, Sodium Citrate, Sodium Hydroxide Lactococcus Ferment Lysate Ethyl Linoleate Hexanoyl Dipeptide-3 Norleucine Acetate Myristoyl Nonapeptide-3 Yeast Extract Soy Amino Acids Pseudoalteromonas Exopolysaccharides Lecithin Polyacrylate Crosspolymer-6 Trisodium Ethylenediamine Disuccinate Sodium Salicylate Sodium Chloride Pentylene Glycol Ethoxydiglycol Phenoxyethanol Chlorphenesin Water, Lactococcus Ferment Lysate, Glycerin, Ethyl Linoleate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hexanoyl Dipeptide-3 Norleucine Acetate, Myristoyl Nonapeptide-3, Yeast Extract, Soy Amino Acids, Bisabolol, Pseudoalteromonas Exopolysaccharides, Lecithin, Sorbitan Isostearate, Isohexadecane, Polysorbate 60, Polyacrylate Crosspolymer-6, Trisodium Ethylenediamine Disuccinate, Sodium Salicylate, Citric Acid, Sodium Chloride, Potassium Sorbate, Sodium Benzoate, Pentylene Glycol, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Bisabolol is a gentle skin conditioner, antioxidant, and soothing ingredient. It's primary claim to fame is soothing and research shows topically applied bisabolol can quiet the chemical messengers that cause your skin to become inflamed, helping to sooth any irritation. A clinical study found that applying 0.5% bisabolol daily for 8 weeks produced an average 9% decrease in skin pigmentation. Researchers found it can also suppress the process that leads to excess melanin production in skin. In vitro studies found that bisabolol combined with propylene glycol significantly increased skin permeability by increasing lipid fluidity in the stratum corneum. You'll likely see use concentrations quite low, usually 0.1-0.2%. Overall, this is a well-tolerated ingredient that works well in formulas designed for sensitive, reactive, or post-procedure skin. 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