PH measurement of high viscous products

i have make a Whitening cream which has high viscosity and i want to check its PH at room temperature. But at room temperature it become hard(physically) so how can we check the PH with my PH meter 
if anyone know about dilution method to check the PH of high viscous products please tell me 
thanks in advance for your time and focus

Comments

Sign In or Register to comment.