What Is L-Citrulline?
L-Citrulline is the headline ingredient in HorseFil's formula. Here's a plain-language look at what it actually is.
Where It Comes From
L-Citrulline is an amino acid found naturally in foods like watermelon, and it's one of the more well-researched ingredients in this category for circulation and physical performance support.
Why It's Included
L-Citrulline is closely tied to nitric oxide production in the body, which helps maintain healthy blood flow already within normal ranges — a foundational piece of physical performance and stamina.
An Important Caution
Because L-Citrulline supports the nitric oxide pathway, it carries a real consideration for anyone taking nitrate-class medication, PDE5 inhibitors, or blood pressure medication. Talk to your doctor before combining it with any of these.
Why It's Paired With Other Ingredients
HorseFil combines L-Citrulline with L-Carnitine, Panax Ginseng, Maca Root, Rhodiola, and Grape Seed Extract, spreading support across multiple angles rather than relying on one ingredient alone.
Curious about the rest of the formula? See the full ingredient breakdown.
