Dr. Barbara Sturm Hyaluronic Serum Versus Medik8 Hydr8 B5 Intense

Dr. Barbara Sturm Hyaluronic Serum Versus Medik8 Hydr8 B5 Intense Detailed comparison of Dr. Barbara Sturm Hyaluronic Serum versus Medik8 Hydr8 B5 Intense. This hydrating serum is formulated around Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Panthenol and Sodium Hyaluronate to hydrate skin and strengthen the skin barrier. Water Butylene Glycol Lactobacillus/Portulaca Oleracea Ferment Extract Phenoxyethanol Sodium Hyaluronate Ethylhexylglycerin Potassium Sorbate Leuconostoc/Radish Root Ferment Filtrate Water, Butylene Glycol, Lactobacillus/Portulaca Oleracea Ferment Extract, Phenoxyethanol, Sodium Hyaluronate, Ethylhexylglycerin, Potassium Sorbate, Leuconostoc/Radish Root Ferment Filtrate Panthenol Glyceryl Glucoside Propylene Glycol Glycerin Sodium PCA Amelanchier Alnifolia Fruit Extract Urea Calcium Pantothenate Trehalose Taurine Creatine Diglycerin Acetyl Glucosamine Daucus Carota Sativa Juice Glycine Soja Seed Extract Lysine Hcl Alanine Arginine Histidine Hcl Biosaccharide Gum-1 Serine Allantoin Proline Lactic Acid Hydroxyacetophenone Hydrolyzed Wheat Protein Lysine PCA Sorbitol Glutamic Acid Threonine Valine Leucine Glycine Isoleucine Phenylalanine Sodium Benzoate Citric Acid Water, Panthenol, Glyceryl Glucoside, Propylene Glycol, Sodium Hyaluronate, Glycerin, Sodium PCA, Amelanchier Alnifolia Fruit Extract, Urea, Calcium Pantothenate, Trehalose, Taurine, Creatine, Diglycerin, Acetyl Glucosamine, Daucus Carota Sativa Juice, Glycine Soja Seed Extract, Lysine Hcl, Alanine, Arginine, Histidine Hcl, Biosaccharide Gum-1, Phenoxyethanol, Serine, Allantoin, Proline, Lactic Acid, Ethylhexylglycerin, Hydroxyacetophenone, Hydrolyzed Wheat Protein, Lysine, PCA, Sorbitol, Glutamic Acid, Threonine, Valine, Leucine, Glycine, Isoleucine, Phenylalanine, Potassium Sorbate, Sodium Benzoate, Citric Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. 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, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. Potassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products. This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus. Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more. You'll often find this ingredient used with other preservatives. 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 humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface. Interestingly, the size of the molecule affects its behavior: Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair. Many serums use a blend of both weigh