#no proprietary blend

Formulation Factory Heart of Steel Review – Is This L-Citrulline Stack Worth It?

I spent six weeks testing Formulation Factory Heart of Steel, a 10-in-1 nitric oxide supplement stacking L-Citrulline with CoQ10, Resveratrol, Ginkgo Biloba, Ginseng and Rhodiola. Here's what actually happened when I took four capsules daily with food.