The same antihistamine pre-treatment that reduces nausea also reduces flushing
On the other hand, carnitine has been studied much less from a scientific perspective
Wang DH, Li DC, Zhang GC, Wang CL, Wei GY (2019) Disruption of por1 gene in Candida utilis improves co-production of S-adenosylmethionine and glutathione
That said, taking carnitine pre workout could improve exercise performance but long term daily supplementation seems to be required to maintain muscle carnitine levels and the associated benefits, including its muscle recovery benefits for alleviating delayed-onset muscle soreness and markers of muscle damage (4, 5)
But claims that peptides can improve brain fog and increase mental clarity are mostly marketing, says Nadolsky
10.3390/antiox9030260 19 FaulM.XuL.WaldM