I've noticed two things.
For the Crystalline Flask, if you activate it twice, the particles on you will disappear, but you will still recover for both activated charges.
1. Buy Crystalline Flask.
2. Use 2 charges and watch your particles disappear.
And for Total Biscuit of Rejuvenation, there is no particle that shows that you have mana regeneration (little blue swirls).
1. Put 9 in utility to get the Total Biscuit of Regeneration.
2. Use it, only green particles for health appear, no blue for mana.
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Jarzelia ?? Senior Member