What the seller says is actually inside
Before the ingredient-by-ingredient breakdown, here is how the seller itself frames the whole formula, in its own words:
"GenF20 Plus is an all-natural HGH-releasing system formulated with 16 ingredients. These ingredients work together to stimulate the production of HGH. Inside our formula you'll find HGH-precursors, growth factors, amino acids and powerful extracts."
The same page lists the benefits it associates with HGH itself, not a guarantee the product delivers each one: lean muscle mass, reduction of body fat, increase of strength, improved sleep, faster recovery, less joint soreness and higher energy levels, per the seller. Below, every one of the 16 named ingredients gets its own card: the seller's claim, quoted, and one honest line of context from us.
Source: genf20.com/ingredients/, read August 29, 2026. Quotes below are verbatim from that same page.
All 16 ingredients, quoted from the seller
Sixteen cards, one per ingredient. Each blockquote is the seller's own wording; each line under it is ours.
GABA (Gamma Aminobutyric Acid)
"Gamma Aminobutyric Acid or GABA is known as a 'Growth Hormone Booster.' Several studies have been published on its potential to boost HGH levels."Honest context
Most GABA-and-HGH research used injected or high oral doses under lab conditions, not a stated amount in a proprietary blend; the seller does not say how much GABA is in the tablets or spray.
Deer Velvet Antler
"Deer Velvet Antler is exactly what its name is: Velvet from deer antlers. But it's essentially the growth hormone IGF-1."Honest context
Any IGF-1 in deer antler velvet is a protein, and proteins are broken down by digestion like any other food protein; how much, if any, reaches the bloodstream intact from a tablet is not addressed by the seller.
GTF Chromium
"GTF Chromium is an 'essential trace mineral,' which means it's necessary for good health... Research results show the glucose regulating effects of GTF Chromium also plays a key role in the secretion of growth hormone from the pituitary gland."Honest context
Chromium's best-documented role in nutrition research is glucose and insulin metabolism; the growth-hormone link above is the seller's own framing, not something we independently verified.
L-Ornithine HCI
"L-Ornithine HCL has been shown to stimulate the release of HGH... Studies show combining L-Ornithine and L-Arginine significantly increases HGH and IGF-1 levels."Honest context
The ornithine-plus-arginine studies behind this claim typically used several grams on an empty stomach, a specific protocol, and the seller does not say how much of either amino acid is actually in GenF20 Plus.
L-Arginine HCI
"L-Arginine is an amino acid which stimulates the production of Nitric Oxide creating a vasodilating effect... Studies show L-Arginine also helps promote the production of HGH during rest and sleep."Honest context
Same dose caveat as ornithine above: arginine's HGH research generally used gram-level amounts, and this tablet's arginine content is not published.
L-Glutamine
"Promising studies show that the conversion of L-Glutamine to Glutamate could potentially trigger the release of growth hormone."Honest context
"Promising" and "could potentially" are the seller's own hedges here, worth reading literally rather than as a promise.
L-Glycine
"Studies suggest that glycine plays a role in controlling hypothalamic-pituitary function as well, which is significant for HGH secretion... Additional benefits include better sleep and improving joint health."Honest context
Glycine's sleep-support research is more established than its growth-hormone claim, worth knowing if better sleep is your actual goal.
L-Tyrosine
"Studies suggest L-Tyrosine functions as a natural growth hormone-releaser. This amino acid also plays an important role in the development of dopamine and other neurotransmitters..."Honest context
Tyrosine as a building block for dopamine and stress-response chemistry is well documented; its specific HGH-releasing claim above rests on thinner evidence.
L-Lysine HCI
"L-Lysine is an essential amino acid commonly taken by athletes to increase levels of HGH... studies show combining L-Lysine with L-Arginine has a 'multiplier' effect for increasing the production of HGH."Honest context
Lysine is an essential amino acid your body needs regardless of any HGH claim; the "multiplier effect" research used specific dose pairings that are not disclosed here.
L-Isoleucine
"L-Isoleucine is a BCAA (branched chain amino acid), which is essential to human life... BCAA's have been shown to help improve the release of EIGH – Exercise Induced Growth Hormone."Honest context
"EIGH" is the seller's own term, not one we found in standard medical usage; BCAAs' role in muscle recovery is the better-supported part of this claim.
L-Valine
"L-Valine is another BCAA that helps muscle protein synthesis and muscle recovery... Studies show L-Valine also helps reduce fatigue during exercise and reduce muscle soreness post workout."Honest context
A standard, well-studied BCAA, and notably the one entry on the seller's list with no HGH claim attached to it.
Tribulus Terrestris
"Tribulus Terrestris is a powerful botanical commonly used to increase sexual energy and libido. But studies also show Tribulus Terrestris promotes the growth of muscle mass and increases strength."Honest context
Rigorous human trials on tribulus and muscle mass or testosterone have generally come back mixed to negative; libido-related findings have somewhat more support in the literature.
Astragalus (Root)
"Astragalus roots have been used traditionally for centuries... In vivo Astragalus has been shown to promote the secretion of growth hormone."Honest context
"In vivo" here is not specified as human research; astragalus's traditional use is centuries old, but human growth-hormone evidence specifically is thin.
Colostrum (10%)
"Colostrum is a fluid produced in breast milk of humans and other mammals... Bovine Colostrum is almost identical to human Colostrum but bovine colostrum has more growth factors..."Honest context
The "(10%)" in the ingredient name most likely refers to a standardized percentage in the raw material, commonly IgG content, not the finished tablet's dose, and the seller does not clarify which on this page.
Pituitary (Anterior) Powder
"Pituitary (Anterior) Powder are extracts made from bovine pituitary glands. These powders are loaded with growth factors and hormones for potential muscle growth and recovery."Honest context
Bovine glandular extracts are an old-school supplement category; the seller does not state how the extract is processed or how much survives digestion.
Phosphatidyl Choline
"Phosphatidyl Choline or PC, helps increase growth hormone levels by inhibiting somatostatin... This somatostatin 'blocking' effect is the reason why bodybuilders take PC."Honest context
Phosphatidylcholine itself is a well-studied nutrient for liver and cell-membrane health; the somatostatin-blocking claim above is the seller's own explanation for why it is in this formula.
All 16 quotes above are verbatim from genf20.com/ingredients/, read August 29, 2026. "Honest context" lines are our own, written by us, never presented as the seller's words.
What GenF20 Plus does not disclose: doses
The seller's ingredients page is unusually detailed about what each ingredient is claimed to do. It is just as consistent about one thing it never states: how much of anything is actually in the product.
- No per-ingredient milligram amounts are published on the seller's ingredients page for any of the 16 ingredients above.
- The tablets are described only as a "proprietary combination of amino acids, nutrients, and peptides," per the seller, with no breakdown by ingredient or total.
- The oral spray's own ingredient amounts are not itemized on the pages we read either.
- The one published clinical study of the product tested the finished tablets-plus-spray system as a whole and did not report per-ingredient doses or isolate results by ingredient.
- Without published doses, confirming that any single ingredient sits at a research-relevant amount is not something we, or anyone outside the manufacturer, can verify from public information, and we say so rather than guess a number.
The one study, and what it did (and did not) test
GenF20 Plus is unusual in the anti-aging aisle for having a published human trial at all. Two honest boundaries worth knowing before you read the ingredient claims above as settled science:
Every ingredient question, answered
What are the ingredients in GenF20 Plus?
Sixteen, per the seller's own ingredients page, read August 29, 2026: GABA, Deer Velvet Antler, GTF Chromium, L-Ornithine, L-Arginine, L-Glutamine, L-Glycine, L-Tyrosine, L-Lysine, L-Isoleucine, L-Valine, Tribulus Terrestris, Astragalus (Root), Colostrum, Pituitary (Anterior) Powder and Phosphatidyl Choline, delivered in enteric-coated tablets described as a "proprietary combination of amino acids, nutrients, and peptides." Every claim about them on this page is quoted from that same seller page.
Does GenF20 Plus publish how much of each ingredient is in the formula?
No. The seller's ingredients page names all 16 ingredients and explains what each is claimed to do, but it does not list a single milligram amount for any of them, and neither the tablet nor the spray label copy we read breaks the "proprietary combination" into individual doses. We say so plainly rather than estimate a number the seller has not published.
Is there science behind these ingredient claims?
Mixed, and mostly about individual nutrients studied on their own rather than this specific blend at this specific, undisclosed dose. Some, like the amino acids' role in general metabolism, are well established; others, like the direct HGH-boosting claims attached to GABA, ornithine or astragalus, rest on smaller or animal studies. The one published human trial of the finished product tested the full tablets-plus-spray system as a whole, not any ingredient in isolation. That study is covered in the full GenF20 Plus review.
What are Anterior Pituitary Powder and Deer Velvet Antler?
Both are animal-derived glandular ingredients. Per the seller, Pituitary (Anterior) Powder is "extracts made from bovine pituitary glands," and Deer Velvet Antler is velvet from deer antlers framed as a natural source of IGF-1. Both are described by the seller as supporting growth-hormone activity; independent human evidence for oral versions of either is limited, and how much of either compound survives digestion is not something the seller's page addresses.
Who should be careful with GenF20 Plus ingredients?
Anyone managing a medical condition, taking hormone or thyroid medication, or pregnant or nursing should talk to a doctor before starting, given how many of these ingredients are framed around hormone activity. GenF20 Plus itself is not a substitute for prescribed HGH therapy. Nothing on this page is medical advice.
Where can I read the full GenF20 Plus review?
Our full GenF20 Plus review covers pricing across all three package sizes, the 67-day two-container guarantee, and the published 12-week study of the complete system: read it at wellnessbench.com/genf20-review/.
How we built this page
This is a source-quoted ingredient breakdown, not an independent lab analysis. On August 30, 2026 we read the seller's own GenF20 Plus ingredients page end to end and quoted every ingredient's claim in the seller's own words, attributed as such.
- Every quoted sentence above comes from the seller's ingredients page, word for word, in quotation marks.
- Every "honest context" line beside a quote is our own read of the surrounding evidence, written by us, never presented as the seller's words.
- We did not find a published per-ingredient dose anywhere on the seller's page, cart, or label copy, so we say that plainly instead of guessing a number.
- The one published human study of the finished product tested the complete tablets-plus-spray system, not any single ingredient; that study is covered in the full GenF20 Plus review, linked above.
- Nothing on this page is medical advice; hormone-related ingredients are doctor territory, first and always.