Fotoprotector Fusion Water SPF 50

The base most products are built on. It carries the other ingredients and has no safety concern.

An organic UV-B filter that also stabilizes other sunscreen actives like avobenzone. The EU SCCS reviewed it and concluded it is safe at current use levels, though rare contact allergy has been reported and older, degraded product may form small amounts of benzophenone.

A corn-derived solvent and humectant that has largely replaced propylene glycol in "clean" formulas; CIR reviewed the alkane diol group and found use concentrations up to about 40 percent in leave-on products like deodorant sticks with no meaningful irritation signal.

A widely used organic UV-A filter in sunscreens. It can lose effectiveness in sunlight unless paired with photostabilizers, but safety reviews have not found it to pose a meaningful health hazard at approved use levels.

A mild UVB chemical filter usually used to help dissolve and stabilize other sunscreen actives. It has a long OTC history at US-approved levels with a low rate of reported irritation.

A silicone that gives a smooth, soft feel and helps hold water in the skin. Inert and well studied.

A silicone-based UV filter that provides broad-spectrum protection. Approved in cosmetics and graded safe; the silicone backbone makes it stable and non-irritating.

A broad-spectrum organic UV filter used widely in European and international sunscreens. Approved by the EU and other regulators as safe at cosmetic levels.

A mineral thickener and anti-caking agent widely used in sunscreens and cosmetics to control texture and prevent ingredient separation. CIR has reviewed silica in cosmetic use and found no basis for concern at the levels used topically.

A preservative and antioxidant that helps prevent microbial growth and oxidative degradation in formulas. Published assessments support its use at cosmetic levels.

A synthetic surfactant widely used to emulsify oils and water in cosmetics. It is well tolerated and has been used safely in cosmetic formulations for decades.

A silicone emulsifier combining polyethylene glycol and dimethicone to help blend water and oil phases in serums and primers. Limited but consistent data support its safety in cosmetic formulations.

A humectant that holds water at the skin surface for a more hydrated look. No safety concern.

A more stable, esterified form of vitamin E used as an antioxidant and skin-conditioning ingredient. It is a different substance from the vitamin E acetate implicated in vaping-related lung injury, which involved inhaling the oil, not applying it topically to skin.

Xanthan gum is a microbial-fermentation-derived polysaccharide used to thicken and stabilize textures, similarly common in food. Cosmetic panel review of this and related microbial gums found them safe as used, with no meaningful irritation signal at typical concentrations.

Caprylyl glycol is a plant-derived humectant that also has mild antimicrobial properties, so it is commonly paired with other preservatives to allow lower overall preservative levels. Available data do not point to meaningful irritation or sensitization concerns at typical use levels.

An undisclosed scent blend that can contain dozens of components. The single most common cause of cosmetic contact allergy, and the blend is not itemized, so you cannot see what is in it.

A chelating agent that binds trace metal ions to keep formulas stable and preservatives working properly. It is not a functional skincare "active" and only a very small amount is used, with minimal skin penetration expected.

A lightweight polyethylene glycol that draws moisture into skin and helps dissolve other ingredients. Published safety reviews support its use; concerns about absorption through skin are overstated for leave-on formulations.

An antioxidant that helps protect a formula and condition skin. Well tolerated.

A fat-soluble vitamin C ester that provides antioxidant activity on skin. It is more stable than free ascorbic acid and is graded low concern in published assessments, with rare reports of sensitization at high concentrations.

The most well-studied form of topical vitamin C, used as an antioxidant and to support collagen signaling and brighten uneven tone. It is acidic and can sting or irritate sensitive skin, and it oxidizes readily once a bottle is opened, which can reduce its effectiveness rather than create a safety issue.

Used in tiny amounts to set a product to skin-friendly pH. No concern at those levels.