MethylPro L-Methylfolate 1mg 90ct delivers pharmaceutical-grade L-5-Methyltetrahydrofolate (L-5-MTHF) — the active, immediately bioavailable form of folate that bypasses the MTHFR enzymatic conversion step that affects approximately 40% of the population. At 1mg, this is an entry-level or maintenance dose appropriate for mild MTHFR support, folate sufficiency maintenance, or as an introductory dose for methyl-sensitive individuals who need to begin methylfolate supplementation slowly.L-5-MTHF is the only form of folate that directly participates in the methylation cycle — donating its methyl group to convert homocysteine to methionine (via methionine synthase), supporting SAMe synthesis for neurotransmitter production, and enabling DNA synthesis and repair. Unlike folic acid, which requires the MTHFR enzyme to convert to L-5-MTHF, supplemental L-5-MTHF works regardless of MTHFR genotype. MethylPro uses Quatrefolic® [(6S)-5-Methyltetrahydrofolic acid glucosamine salt] — the most stable and soluble form of L-methylfolate available. Excipient-free. MethylPro is a physician-grade supplement brand from Metabolic Maintenance's L-methylfolate line, providing pharmaceutical-grade L-5-MTHF (as Quatrefolic® or equivalent) — the active, bioavailable form of folate that bypasses the MTHFR conversion step affecting ~40% of the population. Available at Beauty Riche with same-day shipping.