"Vitality" is a broad word, so it's worth being precise. Here it isn't a medical claim — it's a general-wellness framing for botanicals with a long history of traditional use for energy, stamina and everyday drive.
A single-ingredient formula is simpler to make, but it puts all the weight on one mechanism. Horse Peak Gelatin pairs L-Arginine HCl with six botanicals — Tongkat Ali, Maca Root, Ashwagandha, Epimedium, Beet Root and Grape Seed — spreading the formula across circulation, stamina and stress resilience.
Several of these, especially Tongkat Ali and Maca Root, carry centuries of traditional use in their regions of origin. That's a different standard than a large randomized trial on the finished product, and worth keeping in mind.
Like most nutritional supplements, botanicals like these aren't built for an instant effect. Give a formula like this several weeks of consistent daily use before drawing conclusions.