quote:Originally posted by Private Ryan:
Good day Dr Pickart,
do you think it fine to make the following mixture? mixing 1 part of Retin-A solution to 5part of folligen. This will leave a solution of 0.01% Retin-A in the mixture. Below is the ingredient of the Retin-A solution.quote:0.05% retinoic acid (0.50 mg retinoic acid / mL) in a liquid base of 50% ethyl alcohol, 30% propylene glycol, and 20% water
not sure will the solution be stable or any ingredient will be render ineffective.