Martiderm™ The Originals Proteos Liposome 30 amp. is an oil-free anti-aging facial treatment indicated for sensitive, combination and oily skin. Its light and fresh texture is ideal for this skin type, leaving it feeling soft and non-greasy. Witch hazel is one of the main active ingredients in these ampoules. This ingredient has an astringent effect that tightens pores and tones the skin. It also contains proteoglycans that firm the dermis and retain water, reducing skin dehydration. These ampoules also contain liposomal vitamins C and E that act as antioxidants and neutralise free radicals from sun exposure.