<p><b>What it is:</b> A leave-in hair treatment adds resilience to the hair cuticle to stabilize thinning hair fibers from to tip, protecting from hair fall due to breakage.</p><p><b>Who it's for:</b> Ideal for thinning hair.</p><p><b>What it does:</b> Reduce hair loss with aveda's latest advancement for thinning hair: the invati ultra advanced 4-step system. This leave-in treatment for thinning hair is the final step in your 4-step routine. The strengthening formula helps reduce frizz for 24 hours, detangles hair and protects from heat damage (up to 450° F).</p><p><b>How to use:</b> Apply through damp hair. Do not rinse. Style as desired. Use as part of the invati ultra advanced 4-step system.</p>