Bumble and bumble’s Bb.Prep Primer detangles and primes fine to medium hair, whether straight or wavy. Enriched with vitamin D and a moisturizing blend of algae, hops, kelp, rosemary, and safflower seed oil, this primer readies hair for any style.The formula leaves hair softer and less frizzy, making it more manageable and healthy. Free from parabens, phthalates, mineral oils, and formaldehyde, it nurtures hair without the weight.