Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

First Aid Beauty Hydrating Sunscreen Milk SPF 45 Versus Prequel Solar Shade Broad Spectrum SPF 46 PA++++

First Aid Beauty Hydrating Sunscreen Milk SPF 45 Versus Prequel Solar Shade Broad Spectrum SPF 46 PA++++ Detailed comparison of First Aid Beauty Hydrating Sunscreen Milk SPF 45 versus Prequel Solar Shade Broad Spectrum SPF 46 PA++++. This chemical sunscreen co

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First Aid Beauty Hydrating Sunscreen Milk SPF 45 Versus Prequel Solar Shade Broad Spectrum SPF 46 PA++++ Detailed comparison of First Aid Beauty Hydrating Sunscreen Milk SPF 45 versus Prequel Solar Shade Broad Spectrum SPF 46 PA++++. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. Butyl Methoxydibenzoylmethane 3% Homosalate 7% Ethylhexyl Salicylate 5% Octocrylene 9% Water Glycerin Butyloctyl Salicylate C12-15 Alkyl Benzoate Pongamia Glabra Seed Oil Undecane Betaine Silica Colloidal Oatmeal Glycine Soja Seed Extract Tridecane Ethyl Ferulate Glycine Soja Oil Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Polyglyceryl-4 Laurate Hydroxyacetophenone Arachidyl Alcohol Polyglyceryl-6 Laurate 1,2-Hexanediol Caprylyl Glycol Pongamia Pinnata Seed Extract Behenyl Alcohol Cellulose Gum Polyglyceryl-3 Diisostearate Arachidyl Glucoside Aloe Barbadensis Leaf Juice Sodium Phytate Tocopherol Oryza Sativa Germ Extract Oryza Sativa Extract Sodium Dilauramidoglutamide Lysine Dunaliella Salina Extract Haematococcus Pluvialis Extract Citric Acid Inulin Xanthan Gum Cellulose Fructose Glucose Butyl Methoxydibenzoylmethane 3%, Homosalate 7%, Ethylhexyl Salicylate 5%, Octocrylene 9%, Water, Glycerin, Butyloctyl Salicylate, C12-15 Alkyl Benzoate, Pongamia Glabra Seed Oil, Undecane, Betaine, Silica, Colloidal Oatmeal, Glycine Soja Seed Extract, Tridecane, Ethyl Ferulate, Glycine Soja Oil, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyglyceryl-4 Laurate, Hydroxyacetophenone, Arachidyl Alcohol, Polyglyceryl-6 Laurate, 1,2-Hexanediol, Caprylyl Glycol, Pongamia Pinnata Seed Extract, Behenyl Alcohol, Cellulose Gum, Polyglyceryl-3 Diisostearate, Arachidyl Glucoside, Aloe Barbadensis Leaf Juice, Sodium Phytate, Tocopherol, Oryza Sativa Germ Extract, Oryza Sativa Extract, Sodium Dilauramidoglutamide Lysine, Dunaliella Salina Extract, Haematococcus Pluvialis Extract, Citric Acid, Inulin, Xanthan Gum, Cellulose, Fructose, Glucose Polysorbate 60 Sorbitan Isostearate Butyl Methoxydibenzoylmethane 3%, Homosalate 7%, Octocrylene 9%, Ethylhexyl Salicylate 5%, Water, Glycerin, Butyloctyl Salicylate, C12-15 Alkyl Benzoate, Pongamia Glabra Seed Oil, Undecane, Betaine, Silica, Ethyl Ferulate, Oryza Sativa Extract, Oryza Sativa Germ Extract, Glycine Soja Seed Extract, Tridecane, Glycine Soja Oil, Sodium Dilauramidoglutamide Lysine, Dunaliella Salina Extract, Haematococcus Pluvialis Extract, Inulin, Fructose, Glucose, Pongamia Pinnata Seed Extract, Polyglyceryl-4 Laurate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyacetophenone, Arachidyl Alcohol, Polyglyceryl-6 Laurate, 1,2-Hexanediol, Caprylyl Glycol, Behenyl Alcohol, Cellulose Gum, Polyglyceryl-3 Diisostearate, Arachidyl Glucoside, Tocopherol, Sodium Phytate, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Xanthan Gum, Cellulose These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives Arachidyl Alcohol is a fatty alcohol made from the the arachidic acid found in peanut oil. Despite having "alcohol" in the name, it is not related to denatured alcohol or ethanol. This ingredient is a multitasker: Just be sure to patch this ingredient if you have a peanut allergy (though this ingredient is highly processed and the allergenic proteins are typically removed). This ingredient is a plant-based surfactant and emulsifier. It helps oil and water based ingredients mix evenly to improve formula stability without adding a "greasy" feel. Behenyl Alcohol is a type of fatty alcohol (these are different from the drying, solvent alcohols). Fatty Alcohols have hydrating properties and are most often used as an emollient or to thicken a product. They are usually derived from natural fats and oils; behenyl alcohol is derived from the fats of vegetable oils. Emollients help keep your skin soft and hydrated by creating a film that traps moisture in. In 2000, Behenyl Alcohol was approved by the US as medicine to reduce the duration of cold sores. Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration. Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte. Some studies suggest betaine may support making skin tone more even. Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability. Betaine is also known as trimethylglycine. Also known as Avobenzone, this ingredient is an oil-soluble used to absorb the full spectrum of UVA rays (peak 357 nm). It's one of the most effective UVA filters available but has a major caveat of photostability: avobenzone is susceptible to photodegradation. This means it can lose efficacy when exposed to sunlight without the help of a stabilizing agent. Studies show antioxidants (like vitamin E or vitamin C) and some UV filters (like octocrylene and Tinosorb S) can meaningfully improve its stability in a formulation. The maximum allowable concentration according to regulation is 3% in the US + Canada, and 5% in the EU, Australia, China, Korea, and ASEAN countries. It has a well-support safety profile: a comprehensive 2025 review found minimal toxicity with no evidence of carcinogenicity. Overall, avobenzone is a safe and regulated ingredient used in sunscreen