Fig. 6.

Release of tretinoin from tretinoin microparticle-based topical gels, 0.1 %, 0.08 %, 0.06 % and 0.04 % manufactured using Method I and II.

Release of tretinoin from tretinoin microparticle-based topical gels, 0.1 %, 0.08 %, 0.06 % and 0.04 % manufactured using Method I and II.