Supplement Scholar
Amino Acid

L-Arginine (GH Pulse)

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L-Arginine (GH Pulse). Stimulates a transient growth hormone pulse when taken on an empty stomach.

How it works. Inhibits somatostatin → unmasks endogenous GH pulse from the pituitary; NO synthesis substrate.

What the research supports. 2 graded claims. Strongest: Acutely raises GH (5–10 g oral) (moderate).

How much to take. Typical dose: 3–5 g pre-bed (empty stomach).

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Free-form crystalline powder, Capsules or tablets, Pre-mixed recovery or hydration beverages, Time-release formulations.

Key studies. 9 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried L-Arginine (GH Pulse). Anecdotes are not medical advice.

L-Arginine (GH Pulse). Stimulates a transient growth hormone pulse when taken on an empty stomach.

Molecular structureC6H14N4O2 · 174.20 g/mol

What it is

Stimulates a transient growth hormone pulse when taken on an empty stomach.

Food sources

Dietary protein from animal sources (meat, fish, eggs, dairy) and plant sources (soy, legumes, grains)Free-form amino acid powders and capsulesTargeted pre-workout, recovery, or sleep formulations

Goals

Growth Hormone SupportNitric Oxide ProductionBlood Flow

How it works

Inhibits somatostatin → unmasks endogenous GH pulse from the pituitary; NO synthesis substrate.

Pathways

  • Somatostatin suppression
  • NOS substrate

Effects

  • ↑Growth hormone pulse (acute) increases
  • ↑Nitric oxide increases

What the research supports

Acutely raises GH (5–10 g oral)moderate
Modest BP and ED improvementlimited

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
3–5 g pre-bed (empty stomach)
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodEmpty stomach
Best formMost evidence is based on the free-form crystalline powder form.
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Side effects & interactions

Common side effects

  • GI upset

Medication interactions

Prescription medications (general)minor

Always disclose L-Arginine (GH Pulse) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Free-form crystalline powder
  • Capsules or tablets
  • Pre-mixed recovery or hydration beverages
  • Time-release formulations

Key studies

9 studies cited in total.

PubMed: L-Arginine (GH Pulse) — Acutely raises GH ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching L-Arginine (GH Pulse) and "Acutely raises GH". Filter by RCT, meta-analysis, or year on the results page.

PubMed: L-Arginine (GH Pulse) — Modest BP and ED improvement ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching L-Arginine (GH Pulse) and "Modest BP and ED improvement". Filter by RCT, meta-analysis, or year on the results page.

PubMed: L-Arginine (GH Pulse) — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching L-Arginine (GH Pulse) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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