We use caffeine because it acts as a potentiator for the primary active ingredients of our blend. The crystallized form we use (PURENERGY® caffeine combined with pTeroPure® pterostilbene) produces longer lasting effects than caffeine alone. The effect is very pleasant as there is no rush or jittery feelings and there is no crash after. There is 90mg of caffeine per the standard dose. For reference there is between 100-140mg of caffeine in a small cup of coffee and over 400mg in a Venti from Starbucks.
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