Figure 3. Evaluation of viscosity, turbidity, and clarity of the formulated MS-Hu6 at different concentrations.

Formulated MS-Hu6 showed a concentration-dependent linear increase in viscosity within the acceptable industry standard (<50 centipoise, cP) (A). Formulations were also evaluated for turbidity (opalescence) at 350 nm. Low absorbance (AU, absorbance unit) was noted at lower concentrations; however, there was a concentration-dependent increase in absorbance at 100 mg/mL formulated MS-Hu6 (B). Formulated MS-Hu6 evaluated for clarity at wavelengths of 350, 540, and 595 nm demonstrated that the formulation is clear and transparent even at higher concentrations (100 mg/mL) that correlated well with the turbidity data (C).