humanN Neo40 Professional is the physician/professional-grade version of the original Neo40 nitric oxide booster — delivering the same Nitric Oxide Blend (Beet Root Powder, Hawthorn Berry Extract, L-Citrulline, Sodium Nitrite) with the addition of L-Methylfolate for enhanced Nitric Oxide production support and cardiovascular co-factor support. 60 dissolvable tablets — a 30–60 day supply depending on the restoration-loading protocol.The two-pathway Nitric Oxide approach: Beet Root Powder and Sodium Nitrite provide dietary nitrates for the salivary nitrate-nitrite-Nitric Oxide pathway; L-Citrulline is the precursor to L-Arginine (the substrate for eNOS enzyme), supporting the enzymatic Nitric Oxide Synthase pathway simultaneously. Hawthorn Berry Extract provides flavonoids with direct cardiovascular and vasodilatory activity. L-Methylfolate (active folate/L-5-MTHF) supports eNOS enzyme function — uncoupled eNOS (a consequence of folate deficiency) produces superoxide rather than Nitric Oxide, making folate status critical for eNOS efficiency. The quick-dissolve tablet is placed on the tongue — the salivary pathway begins Nitric Oxide generation from the moment of tablet dissolution. humanN (HumanN) is a cardiovascular health supplement company built on Nobel Prize-winning Nitric Oxide science from the University of Texas Health Science Center, trusted by cardiologists, medical professionals, and collegiate athletic programs nationwide. Available at Beauty Riche with same-day shipping.