Reizlos

Reizlos is a German adjective describing a substance, product, or condition that is free of irritants or stimuli, particularly those that might irritate skin or mucous membranes. The term derives from Reiz (stimulus, irritation) and los (without), indicating an absence of irritating properties.

In cosmetics, personal care, and some household products, reizlos is used to signal a low irritation potential. It is often contrasted with terms like hautverträglich (skin-friendly) or ohne reizende Inhaltsstoffe (without irritating ingredients). The label is typically intended for consumer guidance rather than as a formal medical certification, and it does not guarantee that no individual will react to a product.

The claim has practical limitations. Reizlos is not a standardized medical category, and its meaning can vary by manufacturer and jurisdiction. In the European Union and Germany, there is no universal certification that all products labeled reizlos meet a single set of criteria, so the statement should be understood in context with other safety and ingredient information provided on the product.

Etymologically, reizlos combines Reiz (irritation or stimulation) with los (without), reinforcing the sense of reduced or absent irritant effect. Related terms include reizarm (low irritation) and nicht reizend (non-irritating), which describe similar ideas but may be used in different regulatory or marketing contexts.

Overall, reizlos is a descriptive label used to convey low irritation risk, but it is not a definitive medical assessment and should be interpreted alongside full ingredient lists and individual sensitivities.