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Table 2 Physicochemical properties of CoQ10 formulations

From: Coenzyme Q10 microemulsion ion-activated gel: a promising ophthalmic delivery system for enhanced corneal protection and sustained release

Formulation

Droplet size (nm)

Viscosity (mPa·s)

pH

CoQ10 assay (mg/mL)

Microemulsion

24.5 ± 2.0

7.2 ± 0.5

7.2 ± 0.4

9.7 ± 0.3

Microemulsion gel

39.6 ± 3.5

9.8 ± 1.2

7.3 ± 0.6

9.8 ± 0.2

+STF (40:7)

—

120 ± 4.2

—

—

  1. CoQ10: Coenzyme Q10; STF: Simulated Tear Fluid