This brand is the only brand of PQQ I would recommend (only one I haven't tried is the "Health Thru Nutrition w/ 'PureQQ™️' patented formula, duebto cost). Usually most of the Swanson branded products use patented ingredients; especially in their premium / "Ultra" product line. But recently I bought 2 of their regular (Green bottle) Swanson 20mg 30-count bottles and I feel ZERO benefit. I'm gonna call today and ask to exchange them for Jarrow Formula's. Rule of thumb: always look for a "®️" or "™️" next to the active ingredient, indicating it's a patented formulation of the nutrient, and thus more likely to have guaranteed potency & consistency.

I take PQQ because it is an important antioxidant that promotes the creation of new mitochondria, efficient energy production along with supporting heart and brain health. I like jarrow brand, they use quality ingredients and price is very competitive. Plus for super small size capsules, very easy to swallow. I wish it would be possible to order to Europe again

PQQ can be put in first place from antioxidants for the main organ of man-, brain. After all, all human activity is carried out, controlled by brain neurons. The game does not play a small role of mitochondria, which for various reasons can be especially free radicals to reduce the loss of their properties. And just Pqq is the reinstaller of the new mitochondria. I will purchase regularly with a break for two months . The visible result is calmly responding to all sorts of controversial, complex problems at work and the right decision is made. And the frequent heartbeat disappeared.