What makes Zelm Labs different from the rest? For starters, all our products are handcrafted in a GMP certified facility using state-of-the-art equipment and the very best CBD from US hemp farms. Potency is tested in house and by a third-party lab to guarantee the correct CBD amount. All of our products are developed, formulated, and produced by a team of experts to ensure the highest grade possible, plus our non-GMO products are free of pesticides, herbicides, and heavy metals. That’s quality you can trust.