Allurium Hair Growth Serum is a product that claims to promote hair growth and reduce bald spots, thinning hair, and invisible edges. The product contains natural ingredients such as castor oil, grape seed oil, coconut oil, hemp seed oil, peppermint oil, stinging nettle, and rosemary oil. According to some online customer reviews, the product seems to be effective in filling in hair loss and promoting hair growth. However, there are no negative reviews available online at the moment.