This is the REAL DEAL!!! I didn't notice anything until 2.5 weeks after starting it! I got really vascular in my shoulders, chests, arms and abs, quads and calves. I was already vascular at about 10% bf so it was really obvious and my veins are popping out like 24/7. My cardiovascular conditioning has also gotten better while doing my HIIT training. Even more importantly my Whoop health monitor showed my RHR while sleeping has dropped from low 50s into the high 40s! I am a well trained amateur athlete so this is a really big deal as it shows Ventfort does in fact increase blood flow. I'm definitely gonna be using it for the long term as it's increasing my physical performance, cardiovascular conditioning and will help me live longer.