- If your hair is beginning to thin or you want to take a proactive approach to hair loss, this is the hair growth serum for you! Our nutrient-rich formula nourishes your hair from root to tip. The ginseng fortifies your scalp, encouraging healthy new growth. The biotin strengthens your hair and minimizes breakage by delivering nutrients to your hair. The honey and black seed oil moisturize your hair and scalp to stimulate growth. This intense formula is gentle enough for all hair types, including straight, curly, and kinky hair. A little bit of serum goes a long way. The formula is lightweight so it won’t weigh your hair down, but it will add a healthy shine. Follow up with your preferred Uncle Jimmy hair products. Use daily for thick, healthy, and nourished hair.