Sun Secure Creme SPF50+

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

A modern UVA sunscreen filter widely used in Europe and Asia, valued for photostability and low skin penetration. It is not yet approved as a sunscreen active in the United States, which reflects a slower regulatory pathway rather than a specific safety finding against it.

A widely used UVB chemical filter with a long safety record at US-approved concentrations. Some lab and animal studies have raised questions about hormone activity and coral reef impact, which is why a few jurisdictions cap or restrict it, but human-relevant risk at labeled use levels is considered low by regulators.

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

A blend of cetyl and stearyl fatty alcohols used to thicken lotions and soften skin. It is chemically unrelated to drying alcohols like ethanol, and the CIR expert panel has found fatty alcohols safe as used in cosmetics.

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 solvent and emollient ester used in leave-on and rinse-off formulas. The CIR Expert Panel reviewed alkyl benzoates and found no irritation even at full strength, with typical use levels ranging from 0.0008 to 50 percent depending on product type.

A PEG-type emulsifier (ethoxylated cetearyl alcohol) that helps blend the water and oil parts of a cream. CIR concluded ceteareth ingredients are safe as used, with the one caveat that they are not meant for broken or damaged skin.

An acrylic crosspolymer used to thicken and stabilize cosmetic products. Established use in cosmetics indicates minimal skin irritation potential at typical formulation levels.

A humectant that draws water into the skin. One of the best-studied, best-tolerated ingredients in personal care.

An organic UVB filter approved in the EU and widely used in Korean and Japanese sunscreens at up to 5 percent. It is highly photostable and shows low skin penetration in the reviewed data. It is not on the FDA-approved UV filter list, so US-formulated sunscreens do not use it; that is a regulatory-process gap rather than a documented safety finding against the ingredient.

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 form of vitamin B3 used to support a more even-looking tone and a comfortable barrier. Well tolerated at cosmetic levels.

A buffering agent used in small amounts to maintain or adjust the pH of formulas to keep them skin-friendly. It is not added as an active ingredient but to keep the product at a safe and stable pH level.

A basic amino acid naturally found in skin that draws moisture into the stratum corneum. It is well tolerated in cosmetics at typical concentrations and has been used safely in skincare formulations for decades.

A precursor to vitamin A used as an antioxidant and colorant in cosmetics. CIR and regulatory bodies confirm it is safe at cosmetic concentrations; topical beta-carotene does not carry the same concerns as oral supplementation.

A preservative derived from caprylic acid (coconut-sourced) with antimicrobial activity that supports formula stability. Available data support its use at cosmetic concentrations.

A nutrient-rich carrier oil from soybean seeds containing linoleic and linolenic acids essential for barrier function. Phytoestrogen content is present but not absorbed systemically from topical application, graded low concern by regulatory assessments.

A phospholipid emulsifier from soy or sunflower that binds water and oil and helps other ingredients absorb. It is a natural component of skin membranes, well tolerated, and reviewed as safe as used; a soy-derived grade is not a meaningful concern for a soy food allergy because the protein is largely absent.

A fragrance component with a mild rose and honey scent, widely used in cosmetics and personal care products. Most people tolerate it without issue, though patch-test studies indicate a minority of individuals with fragrance sensitivities may react to it.

A stable, saturated version of squalene, a lipid the skin already produces, now usually sourced from olives or sugarcane instead of shark liver. It is very well tolerated across skin types and helps reinforce the skin barrier.

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

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.

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.

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

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 rheology modifier that thickens gels and serums while maintaining a lightweight, non-sticky feel. Provides suspension and stability in water-based formulas. Widely used and well tolerated.

An ester emollient used to soften and condition skin. The 2017 CIR safety assessment found it non-irritating and non-sensitizing across 415 surveyed formulas at concentrations from 1 to 33 percent.

Pentylene glycol is a humectant and solvent that also offers mild antimicrobial support in formulas. It is generally well tolerated, with only rare reports of irritation, mostly in already sensitive or compromised skin.

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 common foaming cleanser, milder than SLS. Fine for most people in a rinse-off product.

An emulsifier made from sorbitol and isostearic acid, used to stabilize oil-in-water formulas. The Cosmetic Ingredient Review panel assessed it as safe for cosmetic use at typical concentrations.

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.

A widely used preservative, safe at the legal limit of 1% or less. Often the "paraben-free" replacement.

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.