1,3-DMBA (dimethylbutylamine)

Tier 4 — risky / avoid · Stimulant · Cardiovascular · Seizure

A synthetic stimulant found in some pre-workout and weight loss products sold online and in retail stores. FDA has warned it is not a legitimate dietary ingredient and has no place in supplements. Linked to cardiovascular emergencies, seizures, and at least one death. Check product labels carefully before purchasing any pre-workout supplement.

Dose: AVOID — not a dietary ingredient; FDA-warned; linked to cardiac events and seizures