Re-substance treatment for mature or weak hair

Kerastase re-substance. For mature tired or weakened strands. Apply to towel dried hair and let sit for 5 min before conditioning. This product is great for over processed blondes! Or any hair that has sustained damage. It is discontinued and rare. I absolutely LOVE this reparative treatment. You will too! Use the tip to apply near the scalp and work thru ends with your wet brush in the shower. For thick hair I recommend two💁🏼