Herbal essentials to stimulate hair follicle growth. Boujee Haircare Enrich Serum is a fertilizer for areas of the scalp to encourage producing of follicles to grow thicker and shiner. This can be used as an oil treatment as well as your everyday hair routine. Boujee Haircare Enrich Serum is best used for the growth of the hairline, to promote fuller and healthier hair.