Growth Hormone Support — arginine and ornithine, timed to work with your body's own GH rhythm

Growth hormone is released in pulses, with the biggest surges during deep sleep and after intense exercise. This formula pairs two amino acids — arginine and ornithine — chosen to support the body's natural growth hormone output, and it works best when taken to coincide with those natural pulses. It is built on Pure Encapsulations' hypoallergenic, additive-free base.

Per serving: L-Arginine HCl 1,000 mg · Ornithine alpha-ketoglutarate (OKG) 500 mg, with ascorbyl palmitate. (Check the bottle for your serving size.)

How it works — lifting the brake, not flooring the accelerator

Growth hormone release is held in check by a hormone called somatostatin. Arginine's main contribution is that it helps suppress somatostatin — in other words, it supports GH release by easing off the brake, which is a gentler, more physiological approach than trying to force secretion. This is also why timing and an empty stomach matter so much: a protein-containing meal both competes for absorption and triggers an insulin response that blunts the GH pulse. Taken away from food — before bed or before training — the amino acids have a clear run.

Why ornithine is the partner

Arginine and ornithine sit next to each other in the urea cycle, and ornithine alpha-ketoglutarate (OKG) supports nitrogen balance and the synthesis of glutamine and proline — useful for tissue repair. Used together, the two amino acids are intended to support the GH response more effectively than either alone. As a bonus, arginine is the direct precursor to nitric oxide, the molecule that relaxes blood vessels and supports blood flow — relevant around exercise.

Who it may suit

Active adults supporting healthy growth hormone production, lean muscle, training recovery, and the body's natural repair processes — and those interested in healthy-aging support, since GH output naturally declines with age.

How to take it

Take on an empty stomach — before bedtime or about an hour before a workout — or as directed by your healthcare professional.

Precautions

Take on an empty stomach as directed; reduce the dose if digestive upset occurs. Arginine can trigger reactivation of the herpes simplex (cold sore) virus in susceptible people — use with caution if you are prone to cold sores. If you take blood pressure medication or nitrates, or are pregnant or breastfeeding, do not use without first consulting your healthcare professional. Always read the label and use only as directed.

This information is educational and describes how the ingredients work in the body. It is not medical advice and is not intended to diagnose, treat, cure or prevent any disease. If symptoms persist, consult your healthcare professional.