The Ordinary Multi-Peptide Serum for Hair Density Versus The INKEY List PCA Bond Repair Hair Treatment

The Ordinary Multi-Peptide Serum for Hair Density Versus The INKEY List PCA Bond Repair Hair Treatment Detailed comparison of The Ordinary Multi-Peptide Serum for Hair Density versus The INKEY List PCA Bond Repair Hair Treatment Europe. No key ingredients Water Propanediol Butylene Glycol Glycerin Caffeine Biotinoyl Tripeptide-1 Acetyl Tetrapeptide-3 Larix Europaea Wood Extract Pisum Sativum Extract Scutellaria Baicalensis Root Extract Triticum Vulgare Germ Extract Glycine Soja Germ Extract Trifolium Pratense Flower Extract Camellia Sinensis Leaf Extract Apigenin Oleanolic Acid Arginine Glycine Calcium Gluconate Zinc Chloride Lactic Acid Gluconolactone Dextran Maltodextrin Hydroxyethylcellulose Xanthan Gum Pentylene Glycol Dimethyl Isosorbide Polysorbate 20 PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Trisodium Ethylenediamine Disuccinate Sodium Metabisulfite Sodium Benzoate Phenoxyethanol Chlorphenesin Water, Propanediol, Butylene Glycol, Glycerin, Caffeine, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Larix Europaea Wood Extract, Pisum Sativum Extract, Scutellaria Baicalensis Root Extract, Triticum Vulgare Germ Extract, Glycine Soja Germ Extract, Trifolium Pratense Flower Extract, Camellia Sinensis Leaf Extract, Apigenin, Oleanolic Acid, Arginine, Glycine, Calcium Gluconate, Zinc Chloride, Lactic Acid, Gluconolactone, Dextran, Maltodextrin, Hydroxyethylcellulose, Xanthan Gum, Pentylene Glycol, Dimethyl Isosorbide, Polysorbate 20, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Trisodium Ethylenediamine Disuccinate, Sodium Metabisulfite, Sodium Benzoate, Phenoxyethanol, Chlorphenesin Amodimethicone Betaine Bis-PCA Dimethicone Sorbitan Laurate Cetrimonium Chloride Panthenol Trideceth-12 Hydrolyzed Pea Protein Pg-Propyl Silanetriol Aminomethyl Propanol Aloe Barbadensis Leaf Juice Powder Disodium PEG-12 Dimethicone Sulfosuccinate Potassium Sorbate Citric Acid Polyglyceryl-4 Laurate Alcohol Helianthus Annuus Seed Extract Dilauryl Citrate Avena Strigosa Seed Extract Lecithin Water, Amodimethicone, Butylene Glycol, Betaine, Bis-PCA Dimethicone, Sorbitan Laurate, Cetrimonium Chloride, Panthenol, Trideceth-12, Glycerin, PEG-40 Hydrogenated Castor Oil, Sodium Benzoate, Hydrolyzed Pea Protein Pg-Propyl Silanetriol, Aminomethyl Propanol, Aloe Barbadensis Leaf Juice Powder, Disodium PEG-12 Dimethicone Sulfosuccinate, Potassium Sorbate, Citric Acid, Polyglyceryl-4 Laurate, Alcohol, Helianthus Annuus Seed Extract, Dilauryl Citrate, Phenoxyethanol, Avena Strigosa Seed Extract, Lecithin 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. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. 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. PEG-40 Hydrogenated Castor Oil is an emulsifier derived from castor oil. As an emulsifying agent, it helps other ingredients like fragrances and fat-soluble vitamins dissolve cohesively. Due to its large molecule size, it doesn't penetrate beyond the skin's surface. This ingredient has a solid regulatory track record; the CIR Expert Panel first concluded it was safe for use in cosmetics at concentrations up to 100% in 1997. A 2012 reassessment reaffirmed that finding. Safety studies have also found no irritation or evidence of toxicity. A 2019 study did find this ingredient to grow Malassezia, so this ingredient may not be fungal acne safe. 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,