The basics Bumble and bumble Full Potential Hair Preserving Booster Spray* is a highly potent, restorative spray for fuller, stronger hair—especially for hair that is thinning due to breakage.  The benefits Infused with Bumble and bumble’s hair preserve blend™, this elixir effectively restores strength and elasticity to weakened, stressed hair, reducing breakage up to 46 percent.  The uses In as little as 4 weeks, strands grow stronger, healthier, and regain their full styling potential.  The bottom line For best results, pair with Full Potential Hair Preserving Shampoo and Full Potential Hair Preserving Conditioner. Safe for all hair types.