Reef Safe Baby Zinc Sunscreen SPF50 Versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30

Reef Safe Baby Zinc Sunscreen SPF50 Versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30 Detailed comparison of Reef Safe Baby Zinc Sunscreen SPF50 Clear versus First Aid Beauty Mineral Sunscreen Zinc Oxide Broad Spectrum SPF 30. This mineral sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. Zinc Oxide 25% Helianthus Annuus Seed Oil Simmondsia Chinensis Seed Oil Water Glycerin Euphorbia Cerifera Cera Tocopherol Isostearic Acid Polyglyceryl-3 Polyricinoleate Polyhydroxystearic Acid Potassium Cetyl Phosphate Maltodextrin Xanthan Gum Sodium Chloride CI 77491 CI 77492 CI 77499 Zinc Oxide 25%, Helianthus Annuus Seed Oil, Simmondsia Chinensis Seed Oil, Water, Glycerin, Euphorbia Cerifera Cera, Tocopherol, Isostearic Acid, Polyglyceryl-3 Polyricinoleate, Polyhydroxystearic Acid, Potassium Cetyl Phosphate, Maltodextrin, Xanthan Gum, Sodium Chloride, CI 77491, CI 77492, CI 77499 Zinc Oxide 20% Caprylic/Capric Triglyceride Coconut Alkanes Cetearyl Alcohol Coco-Glucoside Avena Sativa Kernel Meal Persea Gratissima Oil Arachidyl Alcohol Behenyl Alcohol Arachidyl Glucoside Benzyl Alcohol Coco-Caprylate/Caprate Zinc Oxide 20%, Water, Caprylic/Capric Triglyceride, Coconut Alkanes, Glycerin, Cetearyl Alcohol, Coco-Glucoside, Avena Sativa Kernel Meal, Tocopherol, Persea Gratissima Oil, Helianthus Annuus Seed Oil, Arachidyl Alcohol, Behenyl Alcohol, Arachidyl Glucoside, Polyhydroxystearic Acid, Benzyl Alcohol, Xanthan Gum, Coco-Caprylate/Caprate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Helianthus Annuus Seed Oil is a plant oil derived from the seeds of a sunflower. It is rich in fatty acids, primarily linoleic acid and oleic acid. This gives it emollient and skin conditioning properties. The reason this ingredient is so effective is because it forms a thin film on the skin that reduces transepidermal water loss (TEWL) while supplying linoleic acid to the stratum corneum to improve barrier strength. The high linoleic acid content is particularly noteworthy for acne-prone skin. Research suggests that acne-prone skin tends to be deficient in linoleic acid in sebum. Topical application may help replenish this to support a healthier follicular environment and less comedone-promoting sebum. One randomized study found sunflower seed oil preserved skin barrier integrity in adult volunteers with and without atopic dermatitis (outperforming olive oil). This ingredient is well-studied, gentle, and an effective emollient suitable for most skin types. On fungal acne: This ingredient may not be Fungal acne (Malassezia folliculitis) safe. This is because it contains fatty acids with carbon chain lengths in the C11-C24 range. Polyhydroxystearic Acid is a vegetable-derived soft wax made from castor oil. It's an emulsion stabilizer, thickener, and film former. You'll likely see it in sunscreens because it helps disperse pigments and UV-reflecting minerals like titanium dioxide and zinc oxide evenly. Depending on the concentration, it can drastically change the texture of a product from pasty solid (like lipstick) to sprayable liquid. The CIR Expert Panel for Cosmetic Ingredient Safety has concluded this ingredient to be safe in cosmetics. The highest reported use concentration is 14.2% in lipsticks. Tocopherol is a fat-soluble antioxidant known as Vitamin E. You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by