About Us

PureQQ® Pyrroloquinoline Quinone is the only FDA Affirmed GRAS PQQ. We are dedicated to providing the highest quality PQQ to manufacturers of dietary supplements, foods, beverages, and other nutrition products. Our patented and proprietary manufacturing process ensures the highest volume of supply at the lowest cost of production, delivering PQQ with both scale and savings for manufacturers.

Contact Us about PureQQ®

The PureQQ® brand is owned and exclusively represented by HOWTIAN LLC.

PureQQ® can be found in a variety of popular consumer product brands such as Swanson, Doctor’s Best, and many more.


HOWTIAN® is the manufacturer and global market representative for PureQQ® Pyrroloquinoline Quinone products.