HyperGH 14x combines amino acid tablets with an oral spray and is aimed at lifters. Below we look at the doses, the absence of a product trial, the Mucuna in the spray and what athletes should watch for.
Not on current evidence. The product targets people who train, but no published trial of HyperGH 14x exists. Its arginine dose sits far below the amounts used in growth hormone research, and the spray holds an undisclosed amount of Mucuna pruriens, which contains levodopa.
Start with the spray. It names Alpha GPC, GABA, Mucuna pruriens, moomiyo extract, ornithine alpha-ketoglutarate and amino acids, but gives no amounts for any of them. The tablets are better documented. Per the official formulation page, a day's dose supplies colostrum 200 mg, GABA 200 mg, deer antler velvet 200 mg, astragalus 240 mg, Tribulus terrestris 320 mg, L-lysine 400 mg, L-tyrosine 400 mg, L-glycine 460 mg, L-glutamine 460 mg and L-arginine 520 mg, with smaller amounts of other ingredients. You take two tablets and three sprays, twice daily. No growth hormone is in the product.
No published trial of HyperGH 14x turned up in our search. What the company calls its "medical proof" page cites research on prescription growth hormone and on secretagogues as a group, not this product. Arginine has raised growth hormone in studies that used several grams, while this product supplies 520 mg a day. Mayo Clinic's position is that research doesn't show supplements claiming to raise HGH work.
Deer antler velvet can contain IGF-1, a compound banned in tested sport and flagged by the US Department of Defense's Operation Supplement Safety program. Separately, the spray's Mucuna is a natural source of levodopa. Anyone on Parkinson's drugs, MAO inhibitors, antidepressants or antipsychotics should avoid it unless a doctor agrees. Both L-arginine and GABA may lower blood pressure. The company advises against use in pregnancy, while breastfeeding or under age 18. Our HyperGH 14x side effects guide goes further.