L\'Oreal Professionnel Serioxyl Hair Fibre Spray suitable for men and women with thinning hair or suffering from hair loss. Helps to conceal sparse areas on the scalp, whilst volumising and bodyfying the hair for a natural-looking densifying effect. Hypoallergenic formula suitable for sensitive scalps. With over 10 years of research, L\'Oreal Professionnel\'s Serioxyl range re-densifies the look and feel of fine and thinning hair with targeted haircare and serums.