Optygen and Race Caps Combination?

I just received a bottle of Optygen and am debating whether I want to order any E-caps Race Caps to also use in preparation for IM Germany or just use Optygen. Has anybody used both simultaneously?

I’m trying the Optygen out of curiousity and intend to start the loading phase 23 days out and take the last dose on race morning, but am not sure I should use it on race day or not.

Barefoot

bump
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I think Race Caps are good, but I don’t know about Optygen. There are some ergogenics that you could use simultaneously such as CoQ10 (primary ingredient in Race Caps), D-Ribose and Carnosine.