HyperGH 14x is an amino acid tablet plus oral spray marketed to lifters. We review its doses, the lack of a product trial, the spray's Mucuna content and the cautions for athletes.
There is no good evidence that it does. HyperGH 14x is marketed to people who train and pairs amino acid tablets with an oral spray, but no published trial of the product exists, its arginine dose is well below the amounts used in growth hormone research, and the spray contains an undisclosed amount of levodopa-containing Mucuna pruriens.
Daily tablet amounts on the official formulation page include L-arginine 520 mg, L-glutamine 460 mg, L-glycine 460 mg, L-tyrosine 400 mg, L-lysine 400 mg, Tribulus terrestris 320 mg, astragalus 240 mg, deer antler velvet 200 mg, GABA 200 mg, colostrum 200 mg and smaller amounts of other ingredients. The spray lists Alpha GPC, GABA, Mucuna pruriens, moomiyo extract, ornithine alpha-ketoglutarate and amino acids, with no amounts. Directions are two tablets and three sprays twice daily. It contains no growth hormone.
We found no published trial of HyperGH 14x; the company's "medical proof" page cites studies of prescription growth hormone and secretagogues in general. Arginine has raised growth hormone in studies using several grams, versus 520 mg a day here. Mayo Clinic says research does not show that supplements claiming to raise HGH work.
Deer antler velvet may contain IGF-1, which is banned in tested sport and flagged by the US Department of Defense's Operation Supplement Safety program. The spray's Mucuna is a natural source of levodopa, so avoid it with Parkinson's drugs, MAO inhibitors, antidepressants or antipsychotics unless a doctor agrees. L-arginine and GABA may lower blood pressure. The company says it is not for pregnancy, breastfeeding or under-18s. Read more in our HyperGH 14x side effects guide.