I did spent a lot of time trying out the combination of two ingredients but later read your potion guide and learnt that this won't work. The next step would be some hints in the game. I like your artwork.
It's great! Really polished for this short amount of time. :-) Somehow, I did switch to this binary strategy after trying out somewhat three potions without success. In Germany, we have this word "Beratungsresistent" what means "has a resistance to advise" so that was what happened to me, here! :-D