The basics Bumble and bumble Full Potential Hair Preserving Shampoorestores strength and elasticity in hair that has grown visibly thin due to breakage.  The benefits This invigorating shampoo, infused with Bumble and bumble’s hair preserve blend™, exfoliates the scalp, effectively removing the dead and dry skin, creating an optimal environment to restore damaged hair.  The uses In as little as 4 weeks, strands grow stronger, healthier, and regain their full styling potential.  The bottom line For best results, follow with Full Potential Hair Preserving Conditioner and Booster Spray. Safe for all hair types.