Why HCG 5000IU specifically

HCG 5000IU is one of three HCG strengths: a 5000IU vial at $60. Glycoprotein hormone research, synthesised and tested in our own Australian lab.

Why HCG is measured in international units

HCG is quoted in IU rather than milligrams because it is standardised by biological activity against a reference preparation, not by weight. That is the convention for hormones with heterogeneous structure, where glycosylation differs between batches and sources and a milligram figure would not describe a consistent amount of activity.

It also means IU and milligram figures are not interconvertible in any general way. A conversion quoted without reference to a specific preparation is not a real number, and anyone reading across from peptide arithmetic needs to change units and change assumptions at the same time.

How a 5000IU vial is verified

A synthetic peptide is a defined molecule, and HPLC purity plus mass spectrometry characterise it well. A glycoprotein carries heterogeneous carbohydrate, so purity means something different and biological activity is the meaningful measure — which is why a certificate reporting only a percentage purity for this product would be using the wrong framework.

Fill activity matters as much as fill weight does elsewhere: the number that has to be right is the stated IU, and it is established by assay rather than by weighing. Every batch is tested before it ships, and the batch number on the vial resolves to its own certificate.

Storage and handling

Supplied lyophilised, HCG 5000IU is stable for long periods cold and dry. Glycoproteins are more fragile in solution than short synthetic peptides, so a reconstituted vial should be kept cold, dark and used within a shorter window than a typical peptide vial.

Agitation matters more here too. Direct the diluent down the inside wall of the vial and swirl gently; a large glycoprotein denatures more readily than a hexapeptide, and foaming is the visible sign it has happened. Keep the powder cold and dry until it is needed rather than mixing early.

Buying HCG 5000IU in Australia

HCG 5000IU is $60. Sydney delivery is free on orders over $100, so a single 5000IU vial does not clear it alone — Sydney delivery on a $60 order is $10. Everywhere else in Australia is $15 express post, free on orders of $200 or more. Orders placed before the daily cut-off dispatch the same day from Sydney.

The peptide itself is synthesised and tested in our own lab in Blacktown, NSW — not imported in bulk and relabelled here, which is how most research peptides reach the Australian market. That matters for a practical reason rather than a patriotic one: an imported peptide has a longer chain between synthesis and vial, the testing that matters happened somewhere else if it happened at all, and the certificate is one the buyer cannot trace.

Every batch is confirmed by mass spectrometry, measured at ≥99% purity by HPLC and screened at 0 ppm heavy metals, and the batch number printed on the vial resolves to that batch's own certificate. Supplied for in-vitro and laboratory research only, to buyers aged 18 and over.

HCG strengths compared

We make HCG in three strengths: 2000IU at $45, 5000IU at $60, 10000IU at $80.

Each strength has its own page, its own batch and its own price per milligram. Larger vials are usually better value per milligram, which is why the arithmetic is on every page rather than left to the reader.

What is HCG?

HCG is a research compound in our Performance & growth range. Glycoprotein hormone research.

At OzPeptides, HCG is synthesised and tested in our own Australian lab and sold strictly for research and laboratory use.

Why Australian-made HCG matters

Much of the peptide stock sold in Australia is made overseas and relabelled. Every OzPeptides batch is made here and tested in-house: ≥99% HPLC purity, identity confirmed by mass spectrometry and 0 ppm heavy metals, with a batch-matched certificate of analysis.

Strengths and formats

HCG is available in 2000IU, 5000IU, 10000IU. Each strength has its own page. Peptides are available as a vial, pre-mixed or in a pen cartridge; mixing is free, or $5 a vial while a sale is running.

How quality is verified

Every batch is tested in-house before release. Purity is measured by HPLC and must be at least 99%. Identity is confirmed by mass spectrometry so the compound matches the label. Every batch is screened for lead, mercury, arsenic and cadmium, with results of 0 ppm. The batch number on your vial links to its certificate of analysis.

Formats explained

The standard vial contains lyophilised (freeze-dried) powder and is the base price. Pre-mixed is prepared in our lab for convenience, and the cartridge is made for our reusable metal pen; both are free, or $5 a vial while a sale is running.

Delivery

Orders confirmed before 1PM AEST ship the same day. Sydney orders are hand-delivered by our team; everywhere else receives tracked express post for $15 (free on orders of $200 or more), in plain packaging.

Research use only

HCG is sold strictly for in-vitro research and laboratory use, to buyers aged 18 and over. It is not for human consumption and is not approved for therapeutic use in Australia.