HCG Dosage Chart: IU to Syringe Units for 5000iu and 10000iu Vials

Dosing Guide — 2026-11-09

The most common point of confusion with HCG is the jump between international units (IU) — how HCG is dosed — and syringe units on a U-100 insulin needle, which is what you actually draw. The conversion depends entirely on how much bacteriostatic water you used. This chart lays out the IU-to-units math for both the HCG 5000iu and 10000iu vials at the standard reconstitution. The numbers match our HCG 5000iu and HCG 10000iu protocol pages.

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The key idea

IU = the dose of HCG (e.g. 250 IU, 500 IU).
Units = the mark you draw to on a U-100 insulin syringe (100 units = 1 mL).
The IU-per-unit depends on your reconstitution volume. Use the same 2 mL and the chart below applies directly.

HCG 5000iu dosage chart (reconstituted with 2 mL bac water)

5000 IU ÷ 2 mL = 2500 IU/mL → 1 unit = 25 IU.

Dose (IU)	Syringe units	Volume
250 IU	10 units	0.10 mL
500 IU	20 units	0.20 mL
750 IU	30 units	0.30 mL
1000 IU	40 units	0.40 mL

HCG 10000iu dosage chart (reconstituted with 2 mL bac water)

10000 IU ÷ 2 mL = 5000 IU/mL → 1 unit = 50 IU.

Dose (IU)	Syringe units	Volume
250 IU	5 units	0.05 mL
500 IU	10 units	0.10 mL
750 IU	15 units	0.15 mL
1000 IU	20 units	0.20 mL

Notice the 10000iu vial needs half the units for the same IU dose — it's twice as concentrated at the same 2 mL fill.

Want the same unit markings on both vials?

If you'd rather the 10000iu vial read the same units as the 5000iu vial (so 250 IU = 10 units on both), reconstitute the 10000iu vial with 4 mL instead of 2 mL:

10000 IU ÷ 4 mL = 2500 IU/mL → 1 unit = 25 IU (identical to the 5000iu chart)

This is purely a convenience choice — the delivered dose is the same either way.

Standard dosing

The commonly cited research protocol is 250 IU or 500 IU, 2–3× per week, subcutaneously into pinched abdominal fat. For how often to dose and why, see HCG injection frequency; for the full dosing walkthrough, see the HCG peptide dosage guide.

Vial longevity

Vial	At 500 IU 3×/week	At 250 IU 2×/week
HCG 5000iu	~3 weeks	~10 weeks
HCG 10000iu	~6–7 weeks	~20 weeks

Storage reminder

HCG is heat-sensitive. Refrigerate after reconstitution and use within ~30 days. For reconstitution technique, see the HCG 5000iu reconstitution and dosing guide.

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.