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HCG 10000 IU is a single vial containing 10,000 international units of human chorionic gonadotropin as lyophilised powder, supplied for research use. It is the same hormone as our HCG 5000 IU vial in twice the quantity — not a different compound, not a different concentration in itself, and not a stronger product. What changes is the economics and the arithmetic you do when you reconstitute it.
hCG is a 237-amino-acid glycoprotein that acts as a luteinising hormone analogue: it binds the LHCG receptor and, in men, stimulates the Leydig cells of the testes to produce testosterone directly. The full mechanism, the role it plays alongside testosterone, and why it is not a post-cycle therapy drug are covered in depth on the 5000 IU page.
Per international unit, the 10,000 IU vial is the cheaper purchase — roughly a third less per IU than buying the same total quantity as 5,000 IU vials. On paper that makes it the obvious choice.
In practice there is a catch worth stating plainly, because most sellers will not. hCG powder is stable, but reconstituted hCG is not: once water goes in, the solution has a usable life of roughly 30 to 60 days refrigerated. A 10,000 IU vial reconstituted all at once and only half used inside that window costs more per usable IU than two 5,000 IU vials would have. The saving is real only if the quantity actually gets used.
So the decision is not about strength, it is about throughput. Longer protocols, or higher per-injection quantities, make the larger vial genuinely economical. Short or occasional use is better served by the 5000 IU vial, even though the headline price per IU looks worse. We would rather sell the right vial than the bigger one.
This is the part that catches people who are used to 5,000 IU vials, because the same volume of water now yields double the concentration. On a U-100 insulin syringe, 10 units on the barrel is 0.1 mL. For a 10,000 IU vial:
Read that against the 5,000 IU vial and the trap is obvious: 1 mL of water into a 5,000 IU vial gives 500 IU per 10 units, while the same 1 mL into this vial gives 1,000 IU. Anyone carrying a habit over from the smaller vial without redoing the arithmetic doubles their dose without meaning to. Larger diluent volumes are the straightforward fix — they make small quantities easier to measure and leave less room for a decimal-point error.
Add the water slowly down the inside wall of the vial and swirl gently rather than shaking. hCG is a protein, and vigorous agitation can denature it.
Unopened powder is the stable form and keeps well stored cool and dark. Once reconstituted, the solution belongs in the refrigerator and is generally considered usable for around 30 to 60 days when bacteriostatic water was used — the benzyl alcohol in it is what provides that window. Sterile water contains no preservative and gives a much shorter one.
An approach that suits the larger vial: reconstitute with a volume you can realistically use inside that window, rather than defaulting to 1 mL because that is what the smaller vial usually takes.
hCG has a mean terminal elimination half-life of roughly 29 hours, reported in the region of 23 to 35 hours, with figures of 32 to 33 hours commonly cited for the conventional formulation. Levels are detectable about 2 hours after an intramuscular injection, peak near 6 hours, and stay measurably elevated for around 36 hours. Published comparisons find similar bioavailability between subcutaneous and intramuscular routes.
Because the signal persists well beyond a day, clinical protocols for male hypogonadotropic hypogonadism describe injections two or three times per week rather than daily.
The usual context is maintenance of testicular function during a period when the body’s own LH output is suppressed — for instance alongside testosterone enanthate, cypionate or Sustanon. hCG substitutes for the missing LH signal at the testes; it does not act on the pituitary, which is why it does not replace the SERMs used to restart the axis afterwards — Nolvadex, Clomid and enclomiphene in the ancillaries range.
Two points that catch people out apply equally to this vial: hCG will make an over-the-counter pregnancy test read positive, because that is precisely what those tests detect, and it is a prohibited substance for male athletes under the WADA code and is screened for in tested sport.
It is also worth repeating that hCG is not a weight-loss compound. There is no scientific evidence supporting hCG for obesity, and the FDA acted against over-the-counter hCG weight-loss products as fraudulent in December 2011; the results attributed to the “hCG diet” come from its 500-calorie intake, not the hormone.
KGEAR U.S ships HCG 10000 IU domestically within the United States — no customs step, no international transit. Alongside it you will find the rest of the peptides range, including tirzepatide, retatrutide, HGH and IGF-1 LR3.
Shipping is a $30 flat rate, USPS Priority, US domestic only, normally 3–5 business days. Orders over $400 ship free. Every order needs at least 2 items and a $100 subtotal (two of the same item counts). Checkout is Bitcoin — if you have not used it before, the step-by-step guide takes about ten minutes. Questions go to Signal @kgearadmin2.25 and usually get answered the same day.
Is HCG 10000 IU stronger than 5000 IU?
No. It is the same hormone in twice the quantity. Strength at the point of injection is set by how much water you reconstitute with, not by the size of the vial.
Is the 10000 IU vial better value?
Per IU, yes — roughly a third less than the equivalent quantity in 5,000 IU vials. That saving only materialises if the hormone is used within the reconstituted shelf life, so it favours longer protocols.
How much water should I use for a 10000 IU vial?
Whatever makes the intended quantity easy to measure. 2 mL gives 500 IU per 10 units on a U-100 syringe; 5 mL gives 200 IU per 10 units. Larger volumes reduce the chance of a measurement error.
Can I reconstitute part of the vial?
No — the powder is a single mass in one vial and cannot be split accurately before mixing. Choose the diluent volume with the whole vial in mind.
How long does it last once mixed?
Around 30 to 60 days refrigerated when bacteriostatic water was used. Considerably less with plain sterile water.
Does hCG need to be refrigerated before mixing?
The lyophilised powder is the stable form and tolerates shipping and cool, dark storage. Refrigeration matters most after reconstitution.
Is hCG detectable on a drug test?
Yes. It is on the WADA prohibited list for male athletes and is specifically screened for in tested sport.
How do I order HCG 10000 IU?
Orders need at least 2 items and a $100 subtotal — two of the same vial counts — and are paid in Bitcoin. Shipping is $30 flat, US domestic, free over $400, normally 3–5 business days.
This product is sold for research and laboratory use. Nothing on this page is medical advice, a prescription, or a recommendation to use hCG. Human chorionic gonadotropin is a prescription medicine in the United States and its use outside a doctor’s care carries real risks. The dosing figures quoted here describe what appears in published clinical literature and product labelling; they are reference information, not instructions. hCG is a prohibited substance in male athletes under the WADA code. Speak to a qualified physician before beginning, changing, or stopping any hormone protocol.
This product is intended for research or educational purposes only and is not approved for human use unless prescribed by a licensed healthcare professional. Always consult a medical expert before beginning any supplement or hormone program.
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