Bio Tanix Hair Serum is a leave-in hair treatment designed to smooth, nourish, and restore hair using a blend of nutrient-rich botanical oils and restorative actives. Often marketed under the Prime Pro Extreme/Bio Tanix range, it’s formulated to help improve hair texture, reduce frizz, and enhance shine.

While the exact formula can vary by product version, Bio Tanix treatments typically include natural oils like argan and olive and other conditioning agents that help strengthen hair, seal the cuticle, and improve manageability