Can a character benefit from multiple Elixirs?

[The Ronyon]

Could a character drink a Lesser Juggernaut elixir, gain 5 temporary hit points, then drink the Lesser Quicksilver elixir and lose the 2x level hit points from the Juggernaut
granted temporary hit points pool?

[Old_Man_Robot]

Sadly not!

Both Juggernaut and Quicksilver have the polymorph trait.

CRB, p635 wrote:

A target can’t be under the effect of more than one polymorph effect at a time. If it comes under the effect of a second polymorph effect, the second polymorph effect attempts to counteract the first. If it succeeds, it takes effect, and if it fails, the spell has no effect on that target.

[Ediwir]

A lv13 mutagenist could, but that's the only exception.

[The Ronyon]

Shucks...

Thanks for setting me strait!