New Elixer question

[Mccooter]

Im hearing 2 stories. So help me figure out the truth.

If you use the advance elixirs on a weapon. Can you use one A elixir and one B elixir on the weapon. So you will have a total of +3

Or

You can use only A or B, not both.

[Lempi]

No

[KillAndChill]

Either or, not both

[m4x]

oh wanted ask same question good thing found you post thx for info guys