Topic
AOD-9604
Everything we've written on AOD-9604 — 7 articles covering the mechanism, the evidence, comparisons, and practical considerations.
7 articles
Metabolic healthWhat people are reporting about AOD-9604This article summarizes experiences reported in public online communities including Reddit, longevity forums, and discussion boards. We are not advocating human use of any compound discussed here. Many of the peptides discussed are not FDA-approved for the uses described, and some are explicitly not approved for human or veterinary use. What follows is a synthesis of what people have reported, presented to give readers context on the public conversation — not as guidance, not as evidence of safety or efficacy, and not as a recommendation. Decisions about any compound should be made with a qualified prescribing provider after a full medical evaluation.7 min readMetabolic healthAOD-9604 in plain English — what a growth hormone fragment actually doesYou've been doing the things. The training is consistent, the diet is reasonable, the processed food is largely gone, the sleep is better than it used to be. And there's still this: a layer of fat that sits at the lower abdomen, the hip-flank, the back of the arm, that does not move. Not noticeably. Not in any timeframe that the effort seems to justify. You're leaner than you were five years ago in most ways. In certain specific ways, nothing has changed at all.8 min readOrigins and discoveryAOD-9604 — the human growth hormone fragment Australian biotech designed to skip the anabolic sideIn the early 1990s, a biochemist at Monash University in Melbourne named Frank Ng was working on a problem that had frustrated pharmaceutical researchers for decades: human growth hormone is a molecule that does too many things at once. It promotes fat breakdown. It drives muscle and tissue growth. It stimulates the liver to produce IGF-1, a powerful growth factor. It influences glucose metabolism. It affects bone density, skin thickness, cardiac function, and half a dozen other systems. The breadth of its activity was both its appeal and its fundamental commercial and clinical problem — because when you give someone exogenous HGH to get one of those effects, you get the others too, and some of them are effects you don't want.8 min readMetabolic healthAOD-9604 — what the clinical trials actually showed (and didn't)The language around AOD-9604 in online compounding communities tends toward confidence: clinically proven, researched in human trials, demonstrated fat loss. All of that is technically true and simultaneously somewhat misleading, in the way that selective quotation of real evidence usually is. The trials exist. The data is public. What the data actually shows — and how far it extends, and where it stops — is a different story than the summary that circulates in most consumer-facing discussions.8 min readMetabolic healthAOD-9604 vs Frag 176-191 — same fragment, different framingsIf you've spent any time in peptide research forums or browsed compounding pharmacies that deal in GH-related compounds, you've likely seen both names: AOD-9604 and Fragment 176-191, sometimes written hGH Frag 176-191 or just Frag 176-191. They appear in different contexts, carry different connotations, and are priced and marketed differently. They are, for almost all practical purposes, the same molecule — with a caveat worth understanding precisely.7 min readMetabolic healthFrag 176-191 in plain English — the hGH C-terminal fragment for fat metabolismWhen researchers started pulling apart human growth hormone in the 1970s and 80s, they were trying to figure out which parts of the molecule did which jobs. Human growth hormone is a 191-amino-acid protein — a single polypeptide chain folded into a specific three-dimensional shape — and it does several things at once: it stimulates IGF-1 production in the liver, which drives tissue growth and cell proliferation; it promotes lipolysis, the breakdown of stored fat; it supports protein synthesis in muscle. The question was whether these effects were separable. Whether you could take a molecule that did five things and isolate the part responsible for one of them.7 min readMetabolic healthStubborn fat and the lipolysis question — where AOD-9604 may fitYou're forty-one. You train four times a week — real training, not the twenty-minute elliptical sessions you did in your twenties. You eat in a reasonable deficit or close to it. Your weight has been stable for years, and in most ways, your body reflects the work: your arms are leaner than they were, your back is more defined, your waist has come in. And then there's the other thing. The lower abdomen that doesn't change. The hip-flank that sits exactly where it was two years ago. The soft layer at the lower back that no combination of exercise and nutrition seems to touch in any meaningful way. You know it's real because everything else moved and this didn't.8 min read