HCG Peptide
In 1950s Rome one clinician made a claim about this hormone that the evidence never supported. Seventy years later the claim is still in circulation and still unsupported.
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For research use only. Not for human or veterinary use.
What HCG Peptide is
The plain-language version, first.
A pregnancy hormone with a real medical history and a fake one running alongside it.
HCG, human chorionic gonadotropin, is a heterodimeric glycoprotein hormone of 237 amino acids in two separately encoded chains: a 92-residue alpha chain shared with LH, FSH and TSH, and a 145-residue beta chain that confers specificity. The molecule is approved and has been marketed in Canada as Chorionic Gonadotropin for Injection USP under DIN 02247459 since 2004, and its FDA-approved label states in capital letters that it is not effective for weight loss.
This one has two stories and only one of them is real. Worth getting them apart before anything else.
The real one: hCG is a 237-residue glycoprotein hormone made by the placenta. It is what a pregnancy test detects. Its characterisation is foundational reproductive endocrinology and it carries genuine regulatory approvals in fertility and endocrine medicine.
The other story starts in Rome in the 1950s with one clinician, A.T.W. Simeons, who proposed pairing it with a severely restricted diet.
That proposal became a protocol, the protocol became an industry, and the industry has outlived the evidence by about seventy years.
Its approved indications are fertility and endocrine. Not one of them is a slimming indication.
We sell it as a research material and we are going to be blunt about which of those two stories has support behind it.
What is HCG?
Mechanism studied, not outcome promised.
The beta chain makes HCG bind the luteinizing hormone receptor. In women that drives ovulation, in men it stimulates Leydig cell testosterone production.
The approved label states HCG has no known effect on fat mobilization, appetite or sense of hunger, or body fat distribution.
Two chains, one of them shared with three other hormones entirely.
Here's a genuinely odd bit of biology. hCG is not one chain, it's two, stuck together.
And the first chain isn't even its own. The alpha subunit is shared, identically, with several other hormones in your body.
Same alpha chain. Completely different jobs. The beta chain is the entire reason your body can tell them apart.
So the specificity of this hormone lives in one half of it. That is not a design anybody would choose from scratch, it's the result of a family of hormones evolving off a shared part.
It is also why measuring it is fiddly and why assays have to be beta-specific to mean anything.
Here's the honest part. The receptor pharmacology here is well characterised, in a well-studied clinical area, and none of that has anything to do with the reason most people search for it.
A hormone having a solid file for one purpose is not evidence for a different purpose. That confusion is the entire commercial history of this compound.
The research so far for HCG Peptide
Where the evidence is thin, we say so.
Decades of reproductive endocrinology, a well-characterised two-chain structure, established assays, and genuine regulatory approvals in fertility and endocrine medicine.
Any approval for a slimming indication, in any jurisdiction. Controlled comparisons have repeatedly failed to separate the protocol from its own diet.
The slimming protocol traces to a single proposal by A.T.W. Simeons. Everything downstream of it inherits that origin rather than an independent evidence base, and the severe caloric restriction bundled into the protocol was always the part doing the work.
Genuine approvals in one area. Seven decades of noise in another.
Two literatures, wildly different in quality, and people quote whichever one suits them.
The first is real. Decades of reproductive endocrinology, regulatory approvals, established clinical use under supervision, and a well-understood mechanism.
The second is the Simeons protocol, and it has been examined repeatedly by people with no stake in the answer.
The pattern in that second literature is consistent and it is not flattering. Controlled comparisons keep failing to separate it from placebo once the severe caloric restriction is accounted for, because the restriction was always doing the work.
And regulators have been explicit that the slimming use is not among its approved indications, which is an unusually direct thing for a regulator to bother saying.
A compound can have an excellent research file and a worthless reputation at the same time. This is the clearest example of that on the whole shelf.
HCG vial sizes and current Canadian stock are listed below.
HCG Peptide specs
The chemistry, exactly as released.
Who studies HCG Peptide
Who tends to order this one, and why.
A research compound does not have one audience. It has a handful of rooms where the same question keeps coming up, and the question is a different question in each of them.
Reproductive endocrinology
The reference glycoprotein hormone for the field, with a long clinical literature and well-understood receptor pharmacology.
Assay development
The alpha subunit is shared with several other hormones, so anything measuring hCG specifically has to target the beta chain. A standing lesson in assay design.
Protein chemistry
A heavily glycosylated two-chain hormone, which makes it a harder characterisation problem than a straight peptide and a more interesting one.
History of medicine
One of the clearest documented cases of a claim outliving its evidence by decades, which is why it turns up in teaching material well outside endocrinology.
Sold for laboratory research only. This is not guidance for personal use, and nothing here is a recommendation.
HCG Peptide backstory
How it got here.
hCG is made by the placenta. That is what a pregnancy test is looking for, and its identification is genuinely foundational work in reproductive endocrinology.
Approvals in fertility go back decades and rest on real evidence.
Then, Rome, the 1950s. A.T.W. Simeons proposes pairing the hormone with a severely restricted diet.
The diet in that protocol was brutal on its own. Which is the part that survived scrutiny, because a severely restricted diet does something whether or not anything is administered alongside it.
Seventy years later the protocol is still sold, still repeated, and still resting on the same original proposal rather than on anything that replicated it.
One clinician, one paper, one very long tail. It is a better lesson in how claims survive than it is in endocrinology.
- 1
A placental hormone
Produced in pregnancy, which is what pregnancy tests detect. Its fertility use is foundational reproductive endocrinology with decades of approval behind it.
- 2
One clinician in 1950s Rome
A. T. W. Simeons proposed pairing HCG injections with a very low calorie diet. The protocol spread far beyond any evidence supporting it.
- 3
Settled, and ignored
A 1995 meta-analysis of 24 trials found no effect. The FDA labelling requirement predates it. Both have been in place for decades while the use continued.
Buying HCG Peptide in Canada
What ships, how fast, and the paperwork.
The hard part of buying research material is almost never the compound. It is the logistics. What leaves the building, how fast it moves, and what is in the box beside the vial. Here is ours, plainly.
Read the label before anything we write
The FDA-approved labelling for this product opens its indications section with a capitalised statement that HCG has not been demonstrated effective for obesity and that there is no substantial evidence it increases weight loss beyond caloric restriction. That is the manufacturer own required wording and it is more authoritative than anything on this page.
Same day out of British Columbia
Our building, our cold packs, our people, and nothing sitting in a customs queue while you refresh a tracking page.
Prohibited in sport, for men
WADA 2026 section S2.2.1 covers testosterone-stimulating peptides in males and names chorionic gonadotrophin explicitly. Prohibited at all times for male athletes. The in males qualifier is in the section heading, since it is a normal pregnancy hormone in women.
HCG Peptide vs HMG Menotropins
Stacked together constantly, compared almost never.
Fertility medicine's two blunt instruments, often mentioned together and doing genuinely different jobs.
hCG is a single defined hormone that happens to impersonate LH at its receptor, which is why medicine uses it as a surrogate trigger signal.
HMG is a purified extract carrying both FSH and LH activity together, standardised in international units rather than milligrams.
One is a defined molecule borrowing a receptor. The other is a two-signal extract. Both belong to supervised fertility medicine, and neither file transfers to a research vial. HMG Menotropins has its own page here
Stuff people ask about HCG Peptide
If your question is not here, email us. Real human answers.
A 237-residue glycoprotein hormone produced by the placenta, built from two separate chains held together. It is what a pregnancy test detects, and it has a long established role in reproductive endocrinology.
Because it belongs to a small family of hormones that share an identical alpha subunit. The beta chain is what makes each one distinct, which is also why any assay claiming to measure hCG specifically has to be beta-specific to mean anything.
Fertility and endocrine indications, under prescription and medical supervision. Those approvals are real and they rest on real evidence. None of them is a slimming indication, in any jurisdiction.
One clinician, A.T.W. Simeons, working in Rome in the 1950s, who proposed pairing the hormone with a severely restricted diet. That proposal is the origin of everything downstream, and the restriction was always the component doing the work.
Commercial momentum, mostly. A claim that gets repeated for seventy years develops its own gravity regardless of whether anything replicated the original. We would rather say that plainly than sell around it.
No. Canada only. Cold-chain shipping works when the chain is short, and borders make chains long.
Good pairing options with HCG Peptide
What researchers stack alongside it.
Pairing is where research gets ahead of itself. These are the compounds researchers put in the same order as HCG Peptide, which is a statement about ordering habits, not about evidence. Two things in one cart have not been studied together unless somebody studied them together.
Not a molecule. FSH and LH activity extracted from postmenopausal urine and standardised in international units. Still marketed in Canada in 2026, which makes it the rare extract with live approvals.
The unprocessed precursor, all 344 residues with the signal peptide still attached. The protein your body actually secretes is a different animal: 315 residues and 36 cysteines folded just so.
Order HCG Peptide right now
One last look before you decide.
Freeze-dried, COA on the page, ships cold
If you are researching HCG Peptide and you want a source you do not have to second-guess, start with the paperwork on this page. For research use only.
Not for human consumption. Not approved by Health Canada or any other regulatory body.
Page last updated August 19, 2026
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