Potions of Experience and Strength

Is there anything you can do with spare Potions of Experience, that I’ve overlooked so far? I maxed out my level with starfruits and my talent points with Potions of Divine Inspiration. I still have two Potions of Experience, a blandfruit and a starseed left.

Also do I understand it correctly that I’ll get a permanent health boost if I take Elixir of Might at level 30?