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Side-by-side comparison of 1 supplements

Syn4.8

Synephrine

Limited safety

Evidence

Evidence Score4.8/10

Studies: 12

Meta-analyses: 2

Dosage & timing

Dosage:

10-20mg p-synephrine 1-2x daily (≤50mg/day); avoid or minimize combining with caffeine/other stimulants

Best Time:

Morning

Can take on empty stomach

Form:

Standardized p-synephrine (stated dose)

What you'll notice

🔥 Increased fat oxidation50%

Acute

⚡ Mild stimulant energy45%

Acute

❤️ Raised heart rate/blood pressure (with caffeine)35%

Acute

Safety

Limited safety

Contraindications:

Hypertension or cardiovascular disease
Arrhythmia or palpitations
Pregnancy and breastfeeding

Drug Interactions:

MAO inhibitors
Caffeine and other stimulants
Blood pressure / heart medications

Side Effects:

Increased heart rate / blood pressurePalpitations, jitteriness, anxietyHeadache

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