Paula's Choice Skin Balancing Pore-Reducing Toner Versus Kiehl's Milk-Peel Gentle Exfoliating Toner

Paula's Choice Skin Balancing Pore-Reducing Toner Versus Kiehl's Milk-Peel Gentle Exfoliating Toner Detailed comparison of Paula's Choice Skin Balancing Pore-Reducing Toner US versus Kiehl's Milk-Peel Gentle Exfoliating Toner. This pore-care toner is formulated around Niacinamide and Panthenol to refine the look of pores and balance excess oil. This toner is formulated around Squalane to hydrate and support the skin barrier. Water Glycerin Butylene Glycol Niacinamide Polysorbate 20 Adenosine Anthemis Nobilis Flower Extract Arctium Lappa Seed Oil Hydrolyzed Jojoba Esters Sodium PCA Panthenol Sodium Hyaluronate Ceramide NP Ceramide AP Ceramide EOP Phytosphingosine Cholesterol Tetrahexyldecyl Ascorbate Oleth-10 Sodium Lauroyl Lactylate Caprylyl Glycol Hexylene Glycol Sodium Citrate Xanthan Gum Trisodium EDTA Phenoxyethanol Water, Glycerin, Butylene Glycol, Niacinamide, Polysorbate 20, Adenosine, Anthemis Nobilis Flower Extract, Arctium Lappa Seed Oil, Hydrolyzed Jojoba Esters, Sodium PCA, Panthenol, Sodium Hyaluronate, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Cholesterol, Tetrahexyldecyl Ascorbate, Oleth-10, Sodium Lauroyl Lactylate, Caprylyl Glycol, Hexylene Glycol, Sodium Citrate, Xanthan Gum, Trisodium EDTA, Phenoxyethanol Hydrogenated Polydecene Caprylic/Capric Triglyceride Squalane Carthamus Tinctorius Seed Oil 1,2-Hexanediol PEG-6 Caprylic/Capric Glycerides PEG-40 Glyceryl Cocoate Sodium Coceth Sulfate Capryloyl Salicylic Acid Tromethamine Ethylhexylglycerin Citrus Nobilis Peel Oil Limonene Anthemis Nobilis Flower Oil Cupressus Sempervirens Leaf/Nut/Stem Oil Prunus Amygdalus Dulcis Seed Extract Benzyl Alcohol Silybum Marianum Extract Tocopherol Dehydroacetic Acid Lactic Acid Water, Hydrogenated Polydecene, Caprylic/Capric Triglyceride, Squalane, Carthamus Tinctorius Seed Oil, 1,2-Hexanediol, PEG-6 Caprylic/Capric Glycerides, PEG-40 Glyceryl Cocoate, Phenoxyethanol, Sodium Coceth Sulfate, Capryloyl Salicylic Acid, Tromethamine, Ethylhexylglycerin, Citrus Nobilis Peel Oil, Adenosine, Limonene, Caprylyl Glycol, Anthemis Nobilis Flower Oil, Cupressus Sempervirens Leaf/Nut/Stem Oil, Prunus Amygdalus Dulcis Seed Extract, Benzyl Alcohol, Xanthan Gum, Silybum Marianum Extract, Tocopherol, Dehydroacetic Acid, Lactic Acid These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Adenosine is a purine nucleoside that your body already makes in every cell. In skincare, it acts mainly as a skin conditioning and anti-aging agent. The way it works is fairly well mapped out: Your skin has cells called fibroblasts that build collagen (the stuff that keeps skin firm and smooth). Adenosine basically flips a switch on these cells that tells them to get to work making more collagen and other proteins. These cells slow down on their own as skin ages, so Adenosine helps give them a little nudge to keep going. The clinical backing is pretty solid too. A blind, randomized, placebo-controlled trial of 126 women aged 45-65 tested a 0.1% cream twice daily and found real improvements in crow's feet and frown lines using a precise 3D skin-mapping technique; these changes showed up by week 3 and held at 2 months. A later study using Adenosine-loaded dissolving microneedle patches reported gains in wrinkle depth, dermal density, elasticity, and hydration. On concentrations, South Korea's Ministry of Food and Drug Safety has set 0.04% as the approved functional anti-wrinkle level. You'll typically see this ingredient used somewhere in the 0.04-0.1% range since it works at low doses. This ingredient has been found safe for cosmetics with the data showing no irritation or sensitization. Overall, this is a great ingredient for any anti-aging routine and has no photosensitizing effect, so it suits both AM and PM use. Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created. Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin. Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on). 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 pr