PQQ (Pyrroloquinoline Quinone) is commonly sold or discussed for general wellness, nutrition, antioxidant, or energy goals.
Also known as pqq
Current picks · Nov 14, 2026
Up to three of the lowest effective prices per exact product among vendors that passed the trust floor, were in stock and checked within 72 hours, and have a COA on file for that product and strength tested within 12 months. Affiliate relationships never affect picks or their order.
No offer meets every pick rule today. The exact-product comparisons below still list every recorded price.
Same format. Same amount.
0 of 0 exact products have at least one pick. Vendor counts reflect the current price observations.
Vendor profiles and catalog information are still available below.
What it is
Pyrroloquinoline quinone is a pyrroloquinoline having oxo groups at the 4- and 5-positions and carboxy groups at the 2-, 7- and 9-positions. It has a role as an antioxidant, a cofactor, a water-soluble vitamin (role) and an anti-inflammatory agent. It is a member of orthoquinones, a pyrroloquinoline cofactor and a tricarboxylic acid. It is a conjugate acid of a pyrroloquinoline quinone(3-). The listed molecular formula is C14H6N2O8. PepGrades separately preserves the catalog category because a chemical identity record does not establish a use, outcome, or product quality.
This label describes the available research record, not whether the compound is safe or effective for an individual.
Research context
5 registered studies were found under this name in the current review. Each study still needs to be checked for the exact compound identity, population, endpoints, and results.
Search indexed research for this compound ↗Market context
PQQ (Pyrroloquinoline Quinone) is commonly sold or discussed for general wellness, nutrition, antioxidant, or energy goals. That describes market demand, not proof that the compound is safe or effective.
Market demand and online discussion do not establish product quality, safety, or effectiveness.Vendor directory
Grades describe the vendor record overall, not a test of every product. Lowest prices are effective single-package prices across formats; open a comparison for the exact product.
No vendor has a current PQQ (Pyrroloquinoline Quinone) offer on record.
1 tracked vendor lists PQQ (Pyrroloquinoline Quinone) without a current offer: Swiss Chems (Grade C).
Sources and review
Last editorial review: Aug 30, 2026. Sources support the compound guide only and do not affect vendor grades.