An ingredient-by-ingredient look at HyperGH 14x safety, using NIH, Mayo Clinic and other public health sources, since the product itself has no published trial.
HyperGH 14x has no published safety trial, so its risks come from its ingredients. The most likely side effects are stomach upset, lightheadedness and drowsiness from about 4 grams a day of amino acids, Tribulus and GABA. The bigger concerns are interactions: L-arginine with nitrates, ED drugs and blood pressure medicine, and the levodopa-containing Mucuna in the spray. Talk to your doctor first if you take any prescription, and avoid it if you are drug-tested.
HyperGH 14x is Leading Edge Health's "HGH releaser" aimed at lifters and bodybuilders. It does not contain growth hormone; the company's FAQ says so directly. Instead it combines daily tablets with an oral spray, both built mostly from amino acids, and the idea is to support the body's own growth hormone release. You take two tablets twice a day (morning or pre-workout, then before bed) and three sprays at each of those times.
As of October 2026, the official formulation page lists these tablet amounts, under a heading of "4,040 mg total per day":
| Ingredient | Amount listed | Main safety note |
|---|---|---|
| L-arginine | 520 mg | Can lower blood pressure; interacts with nitrates and ED drugs |
| L-glutamine, L-glycine | 460 mg each | Side effects in studies |
| L-tyrosine, L-lysine | 400 mg each | Side effects in studies; little safety data at these doses in combination |
| Tribulus terrestris extract | 320 mg | Stomach upset; rare liver and kidney reports |
| Astragalus root extract | 240 mg | May interact with immunosuppressants |
| Deer antler velvet | 200 mg | May contain IGF-1, banned in tested sports |
| GABA | 200 mg | Can lower blood pressure; drowsiness |
| Colostrum | 200 mg | Dairy-derived |
| L-valine, L-ornithine, phosphatidyl choline | 160, 100, 100 mg | Side effects in studies |
| Anterior pituitary powder | 120 mg | Animal gland extract; source not stated |
| GTF chromium | 0.4 mg | May add to diabetes drugs; may reduce levothyroxine absorption |
The listed amounts actually add up to about 3,880 mg, not 4,040, and the page doesn't explain the gap. Those doses are roughly four times what the official GenF20 Plus site lists for its tablets, which we compare in our GenF20 Plus vs HyperGH 14x breakdown.
The oral spray lists Alpha GPC, GABA, Mucuna pruriens seed extract, moomiyo extract, ornithine alpha-ketoglutarate and several amino acids, with no amounts given. Mucuna is the ingredient in the spray that most deserves attention, as explained below.
No. We could not find any published clinical trial of HyperGH 14x, and the "medical proof" page on the official site cites studies of prescription growth hormone injections and growth hormone secretagogues in general, not the product. So there is no product-level safety data. Everything below comes from what is known about the individual ingredients.
The company's FAQ says there are "no customer-reported side effects." That is not the same as no side effects; it means none were reported to the company. The FAQ also says the company can't guarantee the product is safe for you, advises checking with a doctor first, and tells women who are pregnant, breastfeeding or planning a pregnancy not to use it.
Four grams a day of mostly amino acids and herbs is a meaningful load for the gut. Mayo Clinic lists nausea, abdominal pain, diarrhea and bloating as possible side effects of L-arginine, and the NIH's LiverTox entry on Tribulus notes mild stomach discomfort and nausea. In the one trial of the closely related GenF20 Plus formula, a 2015 study at much lower doses, most side effects were heartburn and stomach pain. Taking the tablets with food may help, and stopping should resolve it.
Arginine and GABA both have blood pressure-lowering effects. A United States Pharmacopeia safety review found a temporary, moderate drop in blood pressure with GABA in some studies. On its own this is unlikely to matter for a healthy lifter, but combined with dehydration after a hard session, a pre-workout with its own vasodilators, or blood pressure medication, it could leave you dizzy.
GABA has been linked to drowsiness and headache in some studies, which is one reason the second dose is meant for bedtime. Mucuna's levodopa acts on dopamine, and the Dutch public health institute RIVM lists psychological symptoms among its possible effects.
Mucuna seeds naturally contain levodopa, the same compound used as a Parkinson's disease medicine. In 2024, the Dutch National Institute for Public Health and the Environment (RIVM) warned that some Mucuna supplements deliver levodopa at amounts comparable to or higher than starting doses for Parkinson's patients. It listed possible stomach symptoms, involuntary movements and psychological effects, and said pregnant or breastfeeding women and people with liver or kidney problems should not use them.
We don't know how much Mucuna is in a HyperGH 14x spray, because the amount isn't disclosed. The spray dose is small, so the levodopa content is probably modest, but that is a guess. If you take Parkinson's medication, an MAO inhibitor, an antidepressant or an antipsychotic, don't use the spray without checking with your doctor or pharmacist.
There is no interaction study on HyperGH 14x, so take the ingredients' interactions seriously:
Skip HyperGH 14x, or clear it with your doctor first, if you:
Stop and get medical help for chest pain, fainting, uncontrolled movements, severe stomach pain, yellowing skin or eyes, or a widespread rash. Our look at whether HyperGH 14x works covers whether the benefits are worth weighing against these risks at all.
For a healthy adult on no medication, HyperGH 14x's most likely side effects are stomach upset, lightheadedness and drowsiness, mostly from its 4-gram daily amino acid and herb load. The bigger concerns are interactions: arginine with nitrates, ED drugs and blood pressure medicine, arginine and chromium with diabetes drugs, and the undisclosed amount of levodopa-containing Mucuna in the spray. There is no clinical trial on the product itself, so "no customer-reported side effects" is not evidence of safety. Tested athletes should avoid it because of the deer antler velvet. If you take any prescription, talk to your doctor first. Our HyperGH 14x review for muscle and recovery and our full product review cover the rest.