Everyday professional hair thickening serum for lengths. Leaves hair fibre looking thicker. Enriched with Intra-Cylane, a thickening molecule born of ten years’ research. Super serum from L'Oréal Professionnel Serioxyl Thicker Hair is an everyday hair thickening serum for lengths that leaves hair fibre looking thicker.* Enriched with Intra-Cylane™ to...
