Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Biossance Squalane + Zinc Sheer Mineral Sunscreen SPF 30 PA +++ Versus First Aid Beauty Weightless Liquid Mineral Sunscreen With Zinc Oxide SPF 30

Biossance Squalane + Zinc Sheer Mineral Sunscreen SPF 30 PA +++ Versus First Aid Beauty Weightless Liquid Mineral Sunscreen With Zinc Oxide SPF 30 Detailed comparison of Biossance Squalane + Zinc Sheer Mineral Sunscreen SPF 30 PA +++ versus First Aid Beauty We

This source-based comparison does not add ratings or recommend a winner.

Biossance Squalane + Zinc Sheer Mineral Sunscreen SPF 30 PA +++ Versus First Aid Beauty Weightless Liquid Mineral Sunscreen With Zinc Oxide SPF 30 Detailed comparison of Biossance Squalane + Zinc Sheer Mineral Sunscreen SPF 30 PA +++ versus First Aid Beauty Weightless Liquid Mineral Sunscreen With Zinc Oxide SPF 30. This hybrid sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. This mineral sunscreen covers the full UV range and blocks ~97% of UVB at SPF 30. Zinc Oxide Water Caprylic/Capric Triglyceride Squalane Glycerin Cetearyl Alcohol Methyl Dihydroabietate Sorbitan Olivate Coco-Glucoside Cetyl Palmitate Polyglyceryl-3 Polyricinoleate Caprylyl/Capryl Glucoside Nymphaea Alba Flower Extract Acacia Senegal Gum Ethyl Ferulate Xanthan Gum Sodium Gluconate Lecithin Sodium Palmitoyl Proline Polyhydroxystearic Acid Ethylhexylglycerin Phenoxyethanol Isostearic Acid Zinc Oxide, Water, Caprylic/Capric Triglyceride, Squalane, Glycerin, Cetearyl Alcohol, Methyl Dihydroabietate, Sorbitan Olivate, Coco-Glucoside, Cetyl Palmitate, Polyglyceryl-3 Polyricinoleate, Caprylyl/Capryl Glucoside, Nymphaea Alba Flower Extract, Acacia Senegal Gum, Ethyl Ferulate, Xanthan Gum, Sodium Gluconate, Lecithin, Sodium Palmitoyl Proline, Polyhydroxystearic Acid, Ethylhexylglycerin, Phenoxyethanol, Isostearic Acid Zinc Oxide 22% Ethylhexyl Olivate Isododecane Coconut Alkanes Aluminum Starch Octenylsuccinate Butylene Glycol Mica Polyglyceryl-6 Polyricinoleate Jojoba Esters Cellulose Stearalkonium Hectorite Sodium Chloride Polyglyceryl-3 Diisostearate Iron Oxides Tocopheryl Acetate Coco-Caprylate/Caprate Trihydroxystearin Caprylyl Glycol Trisodium Ethylenediamine Disuccinate Propanediol Sorbic Acid Titanium Dioxide Silica Glycyrrhiza Glabra Root Extract Camellia Sinensis Leaf Extract Alumina Tocopherol Chrysanthemum Parthenium Extract Zinc Oxide 22%, Ethylhexyl Olivate, Isododecane, Coconut Alkanes, Water, Aluminum Starch Octenylsuccinate, Caprylic/Capric Triglyceride, Butylene Glycol, Mica, Polyglyceryl-6 Polyricinoleate, Jojoba Esters, Cellulose, Stearalkonium Hectorite, Sodium Chloride, Squalane, Polyglyceryl-3 Diisostearate, Polyglyceryl-3 Polyricinoleate, Iron Oxides, Phenoxyethanol, Tocopheryl Acetate, Coco-Caprylate/Caprate, Trihydroxystearin, Caprylyl Glycol, Polyhydroxystearic Acid, Glycerin, Trisodium Ethylenediamine Disuccinate, Propanediol, Sorbic Acid, Titanium Dioxide, Silica, Glycyrrhiza Glabra Root Extract, Camellia Sinensis Leaf Extract, Alumina, Tocopherol, Chrysanthemum Parthenium Extract Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. 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. 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 showe