In order to ensure optimal skin compatibility no preservatives are used in RINGANA products. The preservative substitutes propylene glycol, butylene glycol and pentylene glycol are also refrained from. This spares the skin’s essential bacterial flora. The adequate shelf life of RINGANA products is based on the most modern, germ-free production methods and hygienic packaging.
AHAs (fruit acids), colorants and fragrances as well as raw materials from dead animals (collagen, placenta, thymus) are also not utilised.
Of course, beyond that RINGANA products are dermatologically tested.