Pyrroloquinoline Quinone Disodium Salt Powder

Combination / selection rationale: PQQ and CoQ10 have different redox roles. A study testing each alone and together provides a comparative framework for cognition- and oxidative-stress-focused formulation screening.

Published evidence / source details: Ohwada et al. compared dietary PQQ, CoQ10 and their combination using rat water-maze and hyperoxia-stress models. The combination showed better memory retention after hyperoxia, while ordinary learning tests did not show a consistent additional combination benefit. Outcomes depended on the experimental setting.

Development insights: Screen PQQ-only, CoQ10-only and combination capsule prototypes. Separately prepare the Q10 lipid phase and PQQ powder, comparing dry dispersion, adsorbent carriers or separate formats. Assay both components and assess sedimentation, shell compatibility, oxidation and retained-sample potency. Retain single-ingredient controls.

Evidence scope: Animal combination evidence; animal doses are not human formulation recommendations, and the study does not establish human synergy for PathGene PQQ with an arbitrary Q10 grade.

Combination / selection rationale: Establishing a single-ingredient PQQ format and assay baseline helps distinguish PQQ effects from those of added Q10 or micronutrients.

Published evidence / source details: Itoh et al. studied a specific PQQ disodium product at 20 mg/day for 12 weeks in 41 healthy older adults in a randomized double-blind trial. Benefits appeared in selected Stroop measures and a lower-baseline cognitive subgroup, rather than across all tests. The trial did not include Q10 or selenium combination arms.

Development insights: Use a single-ingredient capsule as the incoming-material and process baseline: calculate loading from lot assay, preblend progressively with a carrier, and test start/middle/end filling assays and colour. Keep the PQQ assay and packaged-retention conditions consistent when adding partners.

Evidence scope: Based on the verified study abstract. This is a single-product trial; 20 mg is the study dose, not an intake recommendation for this ingredient or evidence for a blend.

Combination / selection rationale: A hard capsule can combine a quinone ingredient with a micronutrient, making PQQ/selenium a useful example for low-inclusion premixing and fill-uniformity development.

Published evidence / source details: Naturecan lists selenium in its PQQ capsule product, establishing a commercial-format precedent. The product page does not provide a controlled experiment attributing outcomes to the PQQ/selenium combination, so it is listed separately from research evidence.

Development insights: Use a premix with known composition and elemental-selenium content. Calculate selenium-source mass separately from elemental selenium, and blend progressively into the PQQ mixture. Use independent assays and sampling for low-inclusion components, checking uniformity, within-batch variation and stability.

Evidence scope: Commercial precedent, not clinical synergy evidence; this page does not prescribe a universal selenium inclusion level.