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Melatonin vs L-Theanine

Evidence-based comparison from our database of 3,862 ingredients

TL;DR

Melatonin is typically chosen for sleep onset, while L-Theanine is used for relaxation. Neither outranks the other. The right pick depends on the goal, and the two are not interchangeable.

Melatonin

The vampire hormone.

Research depthExtensively studied
Effective Dose0.3mg - 5mg
Time to EffectEffects within minutes to hours

Commonly used for:

sleep onsetjet lagshift work

L-Theanine

The zen switch.

Research depthWell studied
Effective Dose100-200mg
Time to EffectEffects within minutes to hours

Commonly used for:

relaxationcalm focus at a desksmoothing out caffeine jitters

Side-by-Side Comparison

FactorMelatoninL-Theanine
Research depthExtensively studiedWell studied
Effective Dose0.3mg - 5mg100-200mg
Time to EffectEffects within minutes to hoursEffects within minutes to hours
Commonly used forsleep onset, jet lagrelaxation, calm focus at a desk

Which fits which goal

These two do different jobs, so the comparison ends at the goal, not at a ranking. Match the ingredient to what you are trying to change and check the dose against the amount on the label.

Reach for Melatonin when:

  • • The goal is sleep onset
  • • The goal is jet lag

Reach for L-Theanine when:

  • • The goal is relaxation
  • • The goal is calm focus at a desk

Frequently Asked Questions

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This comparison is for informational purposes only and should not replace professional medical advice. Always consult a healthcare provider before starting any supplement regimen, especially if you have existing health conditions or take medications.