A coworker was on this cayenne kick and she swore it made her have more energy, so everyone in the office jumped on the supplement train. I bought some generic off brand and tried it multiple ways: with food, without, morning, and night. It felt like my insides were on fire! I was itching and burning and had a sick, feverish feeling I couldn't shake. FAST FORWARD to trying these. One in the morning with a protein shake is a better pick-me-up than a cup of joe, I kid you not. It kick starts metabolism and gives a healthy boost without jitters, hives, or a crazy whirlwind before a crash. After a week of incorporating these in to my diet, and learning how to take them properly, I will vouch for the power of cayenne. This brand takes first place in that area of the market.