Preservative-free natural cosmetics sound good, but are risky for water-based products. We explain why preservation is necessary, which substances are permitted and which myths persist.

COSMOS, NATRUE or the old BDIH logo: we explain the most important natural cosmetics labels, their criteria and differences – and show what a label guarantees and what it doesn't.

Ceramide NP or plant-based ceramides from rice and wheat – what is really the difference? We take a critical look at the production, research and natural cosmetics certification of both forms.