tetrahydrobiopterin

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    What is Tetrahydrobiopterin (BH4) and How Can I Make More of it?

    Tetrahydrobiopterin (BH4, sometimes THB) is a vital cofactor for numerous enzymes in the body, including those involved in the formation of nitric oxide (NO), and the key neurotransmitters dopamine, serotonin and epinephrine. 1 BH4 plays a critical role in both heart and cognitive health. With...
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