Paula's Choice On-The-Go Shielding Powder SPF 30 Versus Peter Thomas Roth Instant Mineral SPF 45

Paula's Choice On-The-Go Shielding Powder SPF 30 Versus Peter Thomas Roth Instant Mineral SPF 45 Detailed comparison of Paula's Choice On-The-Go Shielding Powder SPF 30 versus Peter Thomas Roth Instant Mineral SPF 45. This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. This mineral sunscreen covers the full UV range and blocks ~98% of UVB at SPF 45. Zinc Oxide 19.24% Synthetic Fluorphlogopite Boron Nitride Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer Silica Oryza Sativa Bran Zea Mays Starch Butylene Glycol Stearic Acid Ceramide NP Tocopherol Olive Glycerides Ascorbyl Palmitate Salix Nigra Bark Extract Water Triethoxycaprylylsilane Polymethylsilsesquioxane Nylon-6/12 EDTA Retinyl Palmitate Potassium Sorbate Chlorphenesin Iron Oxides Zinc Oxide 19.24%, Synthetic Fluorphlogopite, Boron Nitride, Vinyl Dimethicone/Methicone Silsesquioxane Crosspolymer, Silica, Oryza Sativa Bran, Zea Mays Starch, Butylene Glycol, Stearic Acid, Ceramide NP, Tocopherol, Olive Glycerides, Ascorbyl Palmitate, Salix Nigra Bark Extract, Water, Triethoxycaprylylsilane, Polymethylsilsesquioxane, Nylon-6/12, EDTA, Retinyl Palmitate, Potassium Sorbate, Chlorphenesin, Iron Oxides Titanium Dioxide Zinc Oxide Aluminum Hydroxide Tocopheryl Acetate Salix Alba Bark Extract Tetrasodium EDTA Titanium Dioxide, Zinc Oxide, Silica, Aluminum Hydroxide, Stearic Acid, Polymethylsilsesquioxane, Triethoxycaprylylsilane, Retinyl Palmitate, Tocopheryl Acetate, Ascorbyl Palmitate, Salix Alba Bark Extract, Water, Butylene Glycol, Chlorphenesin, Potassium Sorbate, Tetrasodium EDTA These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ascorbyl Palmitate is a fat-soluble form of vitamin C (Ascorbic Acid) made by combining it with palmitic acid. It is able to blend easily into creams and oil-based formulas because it dissolves in oils rather than water. As you may know, regular vitamin C is notorious for breaking down when exposed to sunlight and air. Ascorbyl Palmitate is more stable and degrades at a slower rate. Research on whether it converts efficiently into active vitamin C once it's applied on your skin is still limited. Some in-vitro studies suggest it may support collagen production, but it is not considered one of the stronger vitamin C derivatives, like: Due to the palmitic acid base, this ingredient may not be fungal acne safe. Comedogenic studies have also shown this ingredient to have a rating of 2. It's also worth keeping in mind that comedogenic and irritancy ratings are tested on individual ingredients, not finished formulas. The final product's formulation, concentration, and other ingredients all play a role in how something actually behaves on your skin. 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. Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol. Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria. Chlorphenesin is soluble in both water and glycerin. Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin. Polymethylsilsesquioxane is a silicone used as a film forming agent. When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied. Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less. If you have concerns about using this ingredient, we recommend speaking with a professional. 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 fo