DMAA: limited acute human studies, some pharmacokinetic data, can increase blood pressure, and serious adverse events have been reported in association with DMAA-containing products. FDA says it is not a dietary ingredient.
DMBA: appeared in supplements after DMAA enforcement increased, with no established human performance benefit, no established safe dose, and human cardiovascular risk that can't be quantified reliably. Its similarity to DMAA does not prove identical strength, duration or safety.
No controlled human trial establishes DMBA's performance effects, duration, cardiovascular response or safe dose.
What this page will not say: that DMBA is "weaker DMAA," "safer DMAA," "smoother," "less crash," or that it "replaced DMAA successfully" — and no milligram conversion between the two.
Years ago, I used a bulk stimulant sold as AMP citrate/DMBA. Compared with DMAA, it felt more physically aggressive and training-oriented to me, while DMAA felt harsher and more vasoconstrictive. The perceived AMP citrate effect also seemed to fade quickly with repeated use.
This was an unverified bulk stimulant used in mixed pre-workout contexts. I can't confirm its purity, exact exposure or whether DMBA alone caused those effects. This is personal history — not human safety evidence, a dose recommendation or a reason to use either ingredient.
There's no reliable evidence that the supplement stimulant was naturally supplied by Pouchung tea.
Researchers analyzing authentic and commercial tea samples did not detect DMBA, while several supplements labeled with DMBA or related plant-source language contained measurable synthetic stimulant amounts.
A tea reference on a label should therefore not be treated as proof that DMBA is naturally occurring.
A 2015 analysis detected DMBA in 12 of 14 supplements, with large variation between products. A separate analysis found DMBA in 11 of 13 tested supplements but did not find it in the tea samples examined.
These were analytical studies, not human safety or performance trials. They show DMBA was sold in supplements and that product amounts varied widely — not that any amount was safe or effective.
