Cold Cream

A highly refined, purified oil that forms a light protective layer to slow water loss from skin. Cosmetic-grade mineral oil goes through purification steps that remove the contaminants associated with crude petroleum, and CIR has found it safe as used.

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

A refined mineral wax used to firm up ointment and balm texture and help form an occlusive barrier alongside petrolatum. Highly refined cosmetic-grade mineral waxes have long been reviewed as inert at the concentrations used in personal care products.

A natural wax secreted by honeybees, used as an emollient and texture builder in balms and salves. It is generally well tolerated. People with bee or pollen allergies should patch test, as rare sensitization has been documented.

A fatty alcohol used to soften skin and stabilize creams. Despite the name, it does not dry the skin.

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

Carbomer is a synthetic polymer used purely to thicken and stabilize gels and lotions, with negligible skin penetration due to its large molecular size. Safety reviews have found low toxicity and minimal irritation potential even in leave-on use.

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 naturally occurring fatty acid (also made in the body and found in many foods) used to thicken lotions and help stabilize cleansing bars. It is one of the most well-studied emollient ingredients and is not a meaningful irritant at cosmetic use levels.

A preservative that keeps products free of mold and bacteria. Reviewed repeatedly and considered safe at the low levels used.

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

A fragrance fixative and solvent found naturally in balsams and used to help scents last longer. It is one of the 26 EU-designated fragrance allergens, with documented but uncommon contact sensitization.

A rose-scented fragrance ingredient found naturally in geranium and rose oil. It is one of the 26 fragrance allergens the EU requires to be labeled by name because a minority of people develop skin sensitization to it, though most users tolerate it without issue.

A spicy, clove-derived fragrance and flavor compound. It is one of the 26 EU-designated fragrance allergens because it can trigger contact allergy in sensitized individuals, though CIR review found it safe as typically used in cosmetics.

A floral, rose-like fragrance compound found in many essential oils. It is one of the 26 EU-designated fragrance allergens, meaning a documented minority of people can develop contact sensitization, so brands must disclose it above set thresholds.

Hydroxycitronellal is a lily-of-the-valley scented fragrance ingredient on the EU allergen disclosure list. It has well-documented sensitizing potential in patch-test studies, so it is worth checking the label if you have known fragrance sensitivities.