DMAA / DMHA stimulant adulterants
Toxins · Illicit stimulant adulterant
High exposure concern
Bottom line
Read Off Label rates DMAA / DMHA stimulant adulterants a HIGH exposure concern (8.0/10) based on strong evidence of high acute hazard in contaminated supplements harm magnitude and high acute exposure prevalence.
FDA April 2026 Addall alert found undeclared 1,4-DMAA in Addall XR Shot and Addall XL, and DMHA in Addall XL.
This entry describes an exposure rather than an added intervention.
What the evidence says
FDA April 2026 Addall alert found undeclared 1,4-DMAA in Addall XR Shot and Addall XL, and DMHA in Addall XL. These are exactly the supplement-adulteration risks readers encounter in gas-station focus pills, pre-workouts, and gray-market nootropics: the label may not disclose the active stimulant. These substances are classified here as stimulant adulterants; they are not lawful US dietary-supplement ingredients.
Mechanism
Sympathomimetic stimulant adulterants added to focus, pre-workout, and weight-loss supplements; raise catecholamine tone, blood pressure, and cardiac workload.
Reported exposure / mitigation context
DMAA or DMHA aliases on labels indicate unlawful stimulant ingredients; undeclared adulteration also occurs
Citations
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Common questions
- How harmful is DMAA / DMHA stimulant adulterants?
- DMAA / DMHA stimulant adulterants is rated HIGH exposure concern (8.0/10) on the Read Off Label scale, derived from strong evidence of high acute hazard in contaminated supplements harm magnitude and high acute exposure prevalence.
- How does DMAA / DMHA stimulant adulterants cause harm?
- Sympathomimetic stimulant adulterants added to focus, pre-workout, and weight-loss supplements; raise catecholamine tone, blood pressure, and cardiac workload.
- What exposure context is reported for DMAA / DMHA stimulant adulterants?
- FDA April 2026 Addall alert found undeclared 1,4-DMAA in Addall XR Shot and Addall XL, and DMHA in Addall XL.
This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.