Including for losing hair are genetics, hormonal changes, medical conditions, and lifestyle factors. Male pattern baldness, for example, is a hereditary condition that is caused by a combination of genes and male sex hormones. Other medical conditions such as alopecia areata, scalp infections, and thyroid disorders can also lead to hair loss. In addition, certain medications, stress, and poor nutrition can also contribute to hair loss. FollicleRX NMN Follicle Reverse Serum is a powerful hair serum that contains the active ingredient NMN, known for its ability to promote cell renewal and repair. NMN, or nicotinamide mononucleotide, is a precursor to NAD+ (nicotinamide adenine dinucleotide), a molecule that is essential for cellular energy production and DNA repair. This makes NMN an ideal ingredient for promoting healthy hair growth and reversing the effects of hair loss. This Serum is specially formulated to penetrate deep into the hair follicles, providing the essential nutrients needed for healthy hair growth. It works by stimulating the production of NAD+ in the cells of the hair follicles, promoting cell renewal and repair, and ultimately leading to stronger, healthier hair. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.