The research on HorseFil's six ingredients used real amounts, often measured in grams. HorseFil does not publish any amounts. That's the biggest gap on this site.
L-Citrulline studies have used 1.5g/day in a small ED study, up to 2.4g/day in cycling research, and 3-6g/day in typical protocols. L-Carnitine studies mostly use 1-4g/day.
A single gummy usually weighs only a few grams in total. That makes it genuinely hard to fit gram-level doses of L-Citrulline and L-Carnitine, on top of four herbs, into one gummy.
We can confirm the six ingredients are named on the product image. We cannot confirm any of them is present at a research-level amount.
Until amounts are published, treat HorseFil as a low-dose blend and judge it by how you feel, inside the 60-day refund window.