The Rootist BioBrew Fermented Strengthensing Serum

Per website: Our lightweight leave-in for both hair and scalp. For hair, this serum spray is clinically shown to control frizz, boost shine, protect from heat, and repair damage for up to 3x stronger hair in just one use.* For scalp, this serum is microbiome-friendly, derm-tested and restores balance and hydration. Real Simple Smart Beauty Award Winner 2024: Best Scalp Treatment  What it does Promotes up to 3x less hair breakage* in just one use Protects hair from heat up to 450ºF / 232ºC Controls frizz for up to 72 Hours** *Based on dry combing on bleached hair tresses. **When used in 80% relative humidity Why you'll love it The key step in your healthy hair ritual, this do-it-all bi-phase serum spray blends the nourishment of an oil with the lightweight treatment power of a serum for dramatically stronger, healthier hair.