Scitec GH Surge

🧬 L-Arginine 1050mg — the primary GH-associated amino acid

L-arginine is the most researched amino acid in the context of growth hormone secretion. Its relationship with GH is mediated through the hypothalamus, where arginine inhibits the release of somatostatin — the growth hormone inhibitory hormone. By reducing somatostatin’s suppressive effect, arginine increases the amplitude and frequency of growth hormone pulses from the pituitary. Intravenous arginine infusion is the clinical gold standard for testing GH secretory reserve — a relationship that has driven decades of research on oral arginine supplementation and its potential to stimulate GH, particularly in the fasted overnight state when GH pulsatility is naturally highest.

🔬 L-Ornithine 525mg — the urea cycle complement

L-ornithine is the immediate downstream product of arginine in the urea cycle — the metabolic pathway responsible for converting toxic ammonia to urea for excretion. The arginine-ornithine relationship is both metabolic (ornithine is produced from arginine via arginase) and supplemental (ornithine has been studied independently and in combination with arginine for GH-related effects). The inclusion of ornithine alongside arginine in GH Surge covers both the arginine-direct and ornithine-mediated pathways associated with the formula’s positioning.

🔗 L-Lysine 525mg — the arginine-lysine synergy

L-lysine is an essential amino acid that has been specifically studied in combination with L-arginine for its potential to enhance the GH response. Research using combined arginine + lysine oral supplementation has reported GH responses in some study designs that were not observed with arginine alone — suggesting a synergistic mechanism between the two amino acids that may involve their combined effect on hypothalamic somatostatin regulation. The 2:1:1 ratio of arginine to lysine to ornithine in GH Surge mirrors the typical research ratios used in combined amino acid GH studies.

🌙 Before-sleep timing — the natural GH secretion window

The timing recommendation — on an empty stomach before sleep — is the most critical element of the GH Surge protocol. Growth hormone is secreted in a pulsatile pattern, with the largest and most physiologically significant GH pulse occurring during the first cycle of deep slow-wave sleep (NREM stages 3 and 4), typically 60 to 120 minutes after sleep onset. Arginine reaches peak plasma concentrations approximately 60 to 90 minutes after oral consumption — creating a potential overlap between elevated plasma arginine, reduced somatostatin activity and the natural GH secretion pulse of deep sleep onset.

💊 Hydrochloride salt forms — superior absorption

All three amino acids in GH Surge are provided in hydrochloride salt form (arginine HCl, lysine HCl, ornithine HCl) rather than free-form amino acids. The hydrochloride salt form improves the solubility and absorption characteristics of the amino acids by providing an acidic medium that facilitates dissolution — a meaningful formulation choice for amino acid supplements consumed on an empty stomach before sleep.

🎯 Goal guide

🏋️ Mass gain and bodybuilding: 3 caps/day before sleep. Supporting the natural overnight GH secretion environment alongside progressive overload training and protein supplementation.

🌙 Recovery optimisation: 3 caps/day before sleep. Maximising the anabolic overnight recovery window alongside Scitec 100% Casein Complex for complete pre-sleep recovery support.

⚖️ Anti-ageing and general wellness: 3 caps/day. Natural amino acid support for the GH-mediated recovery and tissue maintenance processes that are most active during overnight sleep.

Serving suggestion

Take 3 capsules on an empty stomach before sleep. Drink plenty of water. Do not exceed the recommended daily dose. Keep out of reach of children. Not for children, pregnant or breastfeeding women.

Best times to take it

🌙 On an empty stomach, 30 to 60 minutes before sleep (sole recommendation)

The critical timing requirement of GH Surge is the empty stomach condition. Dietary protein — particularly arginine, leucine and other amino acids from a recent meal — stimulates insulin secretion. Elevated insulin suppresses GH secretion through complex hypothalamic-pituitary feedback. Taking GH Surge on an empty stomach (at least 2 hours after the last meal) ensures that insulin levels are at their lowest, removing this suppressive effect and allowing the arginine-ornithine-lysine combination to exert its potential somatostatin-inhibiting effect in the most favourable hormonal environment.

⚠️ Not combined with a high-protein meal: avoid taking GH Surge immediately after a casein shake or high-protein meal. The dietary protein from a recent meal will elevate circulating amino acids and insulin — potentially blunting the arginine-mediated GH stimulus. If combining with Scitec 100% Casein Complex, consume the casein shake first, wait 90 to 120 minutes, and then take GH Surge immediately before sleep.

📅 Every day — on training and rest days

The overnight GH pulse occurs every night regardless of training status. Daily consistent supplementation — including rest days — maximises the cumulative supplementation benefit.

Supply duration guide

Full ingredient list

L-Arginine hydrochloride 42%, L-Lysine hydrochloride 21%, L-Ornithine hydrochloride 21%, capsule shell [gelatin, glazing agent (shellac), colour (iron oxides and hydroxides), acidity regulators (ammonium hydroxide, potassium hydroxide)], anti-caking agent (magnesium salts of fatty acids).

Key ingredient breakdown

Allergens

No allergens declared in the formula. Not manufactured in a facility with specific allergen declarations from Scitec (verify on current label). The capsule shell contains gelatin and shellac — not suitable for vegetarians or vegans. Always refer to the current product label for the most up-to-date allergen information.

Product characteristics:

• L-Arginine HCl 1050mg + L-Lysine HCl 525mg + L-Ornithine HCl 525mg per 3-capsule dose
• Hydrochloride salt forms — superior absorption
• Before-sleep protocol — on empty stomach
• 30-day supply
• Gelatin + shellac capsule

Active ingredient content per daily dose (3 capsules)

Nutritional values per 3-capsule serving

Formats disponibles

Q1 — What is the connection between arginine, ornithine, lysine and growth hormone?

The connection is primarily mediated through the hypothalamic somatostatin system. Somatostatin is a peptide hormone released by the hypothalamus that inhibits GH secretion from the pituitary. Arginine’s most well-established GH-related mechanism is the inhibition of somatostatin release — reducing this inhibitory brake and allowing the pituitary to secrete more GH in response to GHRH (growth hormone-releasing hormone). Ornithine, as the direct metabolic product of arginine via arginase, shares related but distinct mechanisms. Lysine has been specifically observed to enhance the GH response to arginine in combined studies — potentially through a different somatostatin-related or GHRH-sensitising mechanism. The combination of all three provides a multi-pathway approach to supporting the body’s natural overnight GH secretion environment.

Q2 — Why must GH Surge be taken on an empty stomach?

This is the most critical practical requirement of the GH Surge protocol. The GH secretion environment is highly sensitive to insulin levels — elevated insulin (which rises after any protein or carbohydrate-containing meal) directly suppresses GH secretion through hypothalamic and pituitary feedback mechanisms. Additionally, dietary protein (including arginine from food) competes with supplemental arginine for intestinal absorption transporters. Taking GH Surge on an empty stomach — at least 2 hours after the last meal and immediately before sleep — ensures low circulating insulin, maximal arginine absorption efficiency and the most favourable hormonal context for the natural overnight GH pulse.

Q3 — How does GH Surge differ from Scitec AAKG or other arginine supplements in the catalogue?

GH Surge uses L-arginine hydrochloride — a different salt form from the L-arginine alpha-ketoglutarate (AAKG) used in Scitec AAKG capsules and Olimp AAKG Mega Caps. AAKG is optimised for the NO-mediated vasodilation pre-workout application — the alpha-ketoglutarate component contributes to the Krebs cycle energy dimension alongside the arginine-NO pathway. GH Surge uses arginine HCl in combination with ornithine HCl and lysine HCl — three amino acids selected for their combined association with GH secretion support in the fasted, pre-sleep context. The two products are complementary: AAKG before training for pump and vasodilation; GH Surge before sleep for GH secretion support. They should not be confused as equivalent products despite sharing L-arginine as a common ingredient.

Q4 — Can GH Surge be taken alongside GABA before sleep?

Yes — GABA and GH Surge are a natural pre-sleep combination that covers two distinct overnight recovery dimensions. GABA supports the neurological relaxation and sleep quality dimension — facilitating the transition into deep sleep stages. GH Surge covers the amino acid-mediated GH secretion support dimension — providing the arginine-ornithine-lysine combination for the somatostatin-mediated GH pulse support. The two mechanisms are complementary and non-overlapping. The critical practical consideration: both should be taken on an empty stomach (or as close to it as possible) before sleep, which is easily achieved by taking them together approximately 30 to 60 minutes before sleep, well after the last meal.

Q5 — Is 30 days of supply sufficient for a meaningful GH Surge protocol?

The overnight GH pulse occurs every night — GH Surge’s effects are not cumulative in the same way that creatine’s phosphocreatine saturation or beta-alanine’s carnosine elevation are. The amino acid combination in GH Surge is intended to support the natural GH secretion environment on each night it is taken, rather than building a physiological adaptation over weeks. A 30-day supplementation course covers one full month of nightly use — allowing athletes to assess the subjective recovery and sleep quality impact of the product within a structured training month.