L-Arginine
A foundational amino acid that converts into nitric oxide, helping promote vascular relaxation and blood flow.
L-Citrulline
Works synergistically with L-Arginine, sustaining nitric oxide levels for longer periods.
Why both are included
Together they provide both immediate and sustained circulation support. See important safety notes about this pathway.
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See Pricing & OrderImportant: This article is general information, not medical advice. HeroUP is a dietary supplement, not a medication, and is not a treatment for erectile dysfunction. Results are not typical and vary. Talk to your doctor before use if you take medication or manage a health condition. Statements have not been evaluated by the FDA.