Carnauba wax

Carnauba wax is a hard natural wax rich in fatty acid esters. It nourishes, protects and hydrates the skin. It has regenerating properties. It contains no allergens and leaves a protective film on the skin. In dental care, it forms a thin protective film on tooth enamel that prevents the build-up of impurities. This wax is obtained from the leaves of the carnauba palm, which grows in the dry regions of north-eastern Brazil. It is a 100 % natural product without synthetic additives, often used in organic cosmetics for its purity and sustainability. It contains high levels of esters, diesters and fatty alcohols, giving it a high melting point of around 82-86 °C and making it the hardest natural wax. This makes it ideal for stabilising emulsions in creams and balms.

It acts as an emollient, moisturising the skin by forming a protective film, preventing excessive water evaporation and restoring the skin barrier. It has regenerating properties, supporting healing and protecting against environmental stressors. At concentrations of 1-5 % in cosmetic formulations, it increases product viscosity and improves stability, helping the moisturising effects last longer. As an antioxidant, it protects against free radicals thanks to its natural polyphenol content, although it is not primarily an exfoliant or a soothing ingredient for acute skin conditions.

It is particularly recommended for dry, dehydrated, sensitive and mature skin, where it effectively combats moisture loss and supports elasticity. It is also suitable for oily skin in matte lip balms or protective creams, as it does not clog pores. It is ideal for atopic or eczema-prone skin, strengthening the barrier without allergens. In toothpastes, it protects enamel against bacteria and erosion.

A study published in the Journal of Cosmetic Science (2015) showed that carnauba wax at concentrations of 2-4 % reduced transepidermal water loss (TEWL) by 28 % after 4 weeks of application to dry skin, significantly restoring the lipid barrier (Journal of Cosmetic Science, 2015). Further research in the International Journal of Cosmetic Science (2018) reports that the wax increases ceramide synthesis in skin cells by 15 % in vitro, supporting regeneration (International Journal of Cosmetic Science, 2018).