Comparison
DMAA vs Yohimbine
Two potent sympathomimetics: DMAA for intensity and tunnel vision, yohimbine for targeted stubborn-fat mobilization.
DMAA
Sympathomimetic Stimulant
Yohimbine
Alpha-2 Adrenergic Antagonist
Effectiveness Profile
At a Glance
| DMAA | Yohimbine | |
|---|---|---|
| Type | Other | Supplement |
| Legal status | Banned | OTC |
| Half-life | ~8.5 hours | 0.5–2.5 hours (mean ~36 min) |
| Preferred route | Oral | Oral |
| Dose frequency | as-needed | once-daily |
| Beginner dose | 10–25 mg | 2.5–5 mg |
| Intermediate dose | 25–50 mg | 10–15 mg |
| Advanced dose | 50–75 mg | 15–25 mg |
| Cycle length | 4–8 wks | 4–12 wks |
| Bioavailability | — | 33% |
| Time to peak | 4h | 0.75h |
| Active duration | 10h | 2h |
| Storage | Room temperature, sealed, away from moisture and light | Room temperature, dry, away from light |
| PCT required | No | No |
| Ancillaries required | No | No |
| Safe for women | Yes | Yes |
Verdict
DMAA wins for acute pre-training drive, pronounced focus, and a stronger supportive role in PR-chasing or overreaching sessions. Its duration and clean dopaminergic action set it apart in stim stacks, especially where laser focus and ergogenic edge beat simple fat loss.
Yohimbine wins for targeted fat loss, especially in subcutaneous lower-body stores resistant to diet and cardio. Its mechanism (α2-adrenergic antagonism) uniquely attacks stubborn fat under fasted, catecholamine-driven conditions. It carries less pressor load than DMAA but comes with its own profile of CNS stimulation and risk for anxious responders.
Pick A or B?
Pick DMAA if:
- The goal is acute pre-training focus, drive, and intensity above caffeine's ceiling.
- Research protocols call for mood elevation and a more pronounced motivational effect.
- The lab scenario demands synergy with caffeine or other stims in pre-workout settings.
- Longer duration of effect is required — 6–8h coverage vs. the shorter yohimbine window.
- A more reliable vasoconstrictive/pump effect is desired.
Pick Yohimbine if:
- The protocol is designed for fasted cardio targeting stubborn lower-ab/glute/thigh fat.
- The subject is already lean and seeking to edge into true contest leanness.
- Catecholamine-driven lipolysis is the priority rather than overall CNS drive.
- A milder pre-cardio sympathetic push is ideal (lower stimulation than DMAA, less crash).
- Synergy is needed with caffeine or β2 agonists (e.g. albuterol) for enhanced fat mobilization during cuts.
