Tasmanian Spring Water Splash Serum

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

A lightweight humectant and solvent similar in role to propylene glycol, used to carry actives and give lotions a lighter feel. CIR has reviewed it and considers it safe as used in cosmetics.

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

A gentle, glucose-derived emulsifier and humectant used in skincare and cleansing products. It is valued for its mildness and compatibility with sensitive skin. Published cosmetic assessments support its safety in rinse-off and leave-on formulations.

A widely used emulsifier and solubilizer that has been in cosmetics and pharmaceuticals for decades. The CIR has assessed it as safe with no known concerns at typical cosmetic concentrations. As with any surfactant, some people with very sensitive skin may experience mild irritation.

A preservative booster and antioxidant derived from natural sugars. Often used alongside other preservatives to enhance efficacy and extend shelf life.

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.

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 preservative and fragrance component with a subtle anise scent, derived from para-anisic acid. It is well tolerated in most products, though some individuals may experience sensitivities, particularly in leave-on formulations or at higher concentrations.

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

A broken-down form of hyaluronic acid with smaller molecules intended to penetrate more deeply into the skin. It functions as a humectant and is well tolerated, with the same safety profile as standard hyaluronic acid.

An amino acid-derived chelating agent that stabilizes formulas by binding trace metals. Published assessments support its use at cosmetic concentrations.

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

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

A probiotic-derived ferment lysate containing amino acids and polysaccharides. Limited published research suggests it may benefit skin hydration, though the cosmetic evidence base is smaller than for established ingredients.

A strong alkali used in tiny amounts to adjust the pH of cosmetics to safe, skin-friendly levels. At the pH found in finished products, sodium hydroxide is neutralized and well tolerated.

The sodium salt of benzoic acid, used as a preservative in both foods and cosmetics. Decades of safety review support its use at typical cosmetic concentrations, with mild irritation the main reported issue in sensitive skin.

A larger, gentler alpha hydroxy acid than glycolic acid, used to exfoliate and to draw in moisture. It can still cause stinging or increased sun sensitivity at higher concentrations, so daytime SPF use is sensible, but it is generally better tolerated than glycolic acid.

A natural fragrance component found in citrus oils and lemongrass, giving a lemony scent. It is a named EU fragrance allergen that can oxidize into potent contact allergens over time; people with known fragrance sensitivities may react.

A floral fragrance component and one of the EU-labelled fragrance allergens. Usually fine, worth watching if you react to scented products.

A citrus-scented fragrance component. Fine for most, but it oxidizes over time into a known contact allergen, so it must be labelled in the EU.