René Furterer Triphasic Progressive Anti Hair Loss Serum 8 x 5.5 ml (8 x 0.19 fl oz)Ren Furterer Triphasic Progressive Anti Hair Loss Serum 8x5. 5ml (8x0. 19fl oz) offers a complete treatment for hormonal and hereditary hair loss, helping to slow hair fall, stimulate growth, and improve hair density. With 98% natural origin ingredients, including Mangosteen extract, Biotrinine, Pfaffia extract, Glyceryl Laurate, and Hesperidin Methyl Chalcone, this serum supports stem cell function and fortifies the scalp. It works across the hair