WHAT IS IT? Nutri-Supplement Split Ends Serum by Kérastase is a high-nutrition ultra-sealing split ends serum for dry hair with split ends. This split ends treatment contains anti-dryness polymers to seal dry ends, preventing the appearance of split ends. It also delivers a dose of essential nutrients that boost the formula’s ability to nourish and reinforce the hair. The extremely nourishing oil acts as an anti-dryness for split ends and has a translucent oily texture. Bottle made of 20% recycled glass. NUTRI-SUPPLEMENT SPLIT ENDS SERUM BENEFITS: 2x less split ends* 4x more split ends prevention* +61% of immediate hydration & 72H of nutrition* +99% of stronger hair* *Instrumental test, after application of Nutri-Supplement split ends serum WHO IS IT FOR? Everyone experiencing split ends.