Dosing Guide — 2026-10-28
HCG is one of the most-searched research compounds we carry, and the 5000iu vial is the size most people start with. This guide puts everything in one place: what HCG is, how to reconstitute a 5000iu vial so the IU math is easy, the standard dosing schedule, and how long a vial lasts. Written to be read start to finish, not skimmed off a product card. For laboratory research use only.
Current pricing and the batch COA are on the HCG 5000iu page, and the exact protocol lives in the HCG 5000iu dosing guide. Both are linked again below where they're useful.
HCG (human chorionic gonadotropin) mimics luteinizing hormone, which is why it's studied in reproductive and hormonal research models — it signals the gonads much the way LH does. If you want the fuller background before dosing, what is HCG peptide covers the biology and the common research contexts.
HCG is typically administered 2–3 times per week at 250–500 IU per dose. Once you've reconstituted with 2 mL of bacteriostatic water, the units are clean:
| Dose | IU | Units (U-100 syringe) |
| Low | 250 IU | 10 units |
| Standard | 500 IU | 20 units |
A common pattern is 250–500 IU two to three times weekly, injected subcutaneously into the pinched fatty layer of the abdomen.
Add exactly 2 mL of bacteriostatic water to the 5000 IU vial:
Inject the water slowly down the vial wall, swirl gently — never shake — and refrigerate right away. HCG is more heat-sensitive than most peptides, so it shouldn't sit at room temperature. You'll need bacteriostatic water, and the HCG 5000iu reconstitution and dosing guide has the full method.
A 5000iu vial holds 5000 IU total. Dose and frequency set the duration:
| Protocol | Approx. duration per vial |
| 250 IU, 2×/week (500 IU/wk) | ~10 weeks |
| 500 IU, 2×/week (1000 IU/wk) | ~5 weeks |
| 500 IU, 3×/week (1500 IU/wk) | ~3 weeks |
So depending on protocol, a single 5000iu vial lasts anywhere from a few weeks to a couple of months. See how long HCG 5000iu lasts for the full breakdown, and if you dose on the higher end regularly, the HCG 5000iu vs 10000iu comparison shows when the larger vial is the better value.
HCG is heat-sensitive. Keep the dry powder refrigerated before mixing, and once reconstituted, store at 2–8°C and use within about 30 days. Don't leave it out, and avoid freeze-thaw cycles. A rise in estrogen and some water retention are the side effects most worth monitoring in research models.
Potency consistency is everything with a hormone-signaling compound — your IU count only means something if the vial is accurately filled and genuinely 99%+ pure. Every HCG 5000iu vial from Platinum Biolabs ships with a batch-matched COA and is handled from a US facility. Code PLATINUM25 takes 25% off at checkout. If your protocol runs long or you dose frequently, compare the HCG 10000iu vial for a lower cost per IU.
Disclaimer: All information presented in this article is for educational and informational purposes only. Platinum Biolabs does not promote or endorse the use of peptides for human consumption. All products sold by Platinum Biolabs are intended strictly for laboratory and research use only. Consult a qualified healthcare professional before making any health-related decisions.