I'm loving this game; mixing ingredients together instead of just selling the stock you buy is actually a great gameplay loop! The characters are fun too. I would like to suggest something. The gallery only tracks certain scenes, which is fine, but there are transformations of different characters I'd like to see again. Maybe have a special tab in the gallery to view all of the different characters and the transformations you've seen. It kinda stinks that you tf someone into a busty rabbit girl, but can't see that form ever again.
Also, I'm hoping that the "Look at yourself" option in your room and exploring the town at night are given purposes soon. Like someone suggested below, if you use your own product, maybe you can see the results in the mirror?
Anyways, great game! Keep it up!