Human Chorionic Gonadotropin · 5,000 IU
HCG 5000 IU
HCG, or Human Chorionic Gonadotropin, is an injectable hormone commonly used by men during or after testosterone and anabolic-steroid use to support testicular function, endogenous testosterone production and fertility. HCG acts as an LH analogue, directly stimulating Leydig cells in the testes to produce testosterone.[1][2]
5,000 IU
Human Chorionic Gonadotropin
Lyophilized powder
HCG + sterile mixing water
Quick reference
HCG Dosage & Timing
2,000 IU + 500 IU
2,000 IU once, then 500 IU daily for the next 6 days; current Thai Anabolics protocol uses this every 6 weeks
Start ~2 weeks later
2,000 IU once, then 500 IU daily for the next 6 days
Start ~2 days later
2,000 IU once, then 500 IU daily for the next 6 days
250–500 IU
Every other day in published concurrent-testosterone studies
Different goals use different HCG protocols. Published testosterone/fertility research has used lower repeated doses such as 250–500 IU every other day, while bodybuilding and PCT protocols are commonly structured differently.[3][4]
During testosterone use
HCG & Testicular Function
Exogenous testosterone suppresses LH and FSH, which can sharply reduce intratesticular testosterone. HCG can replace part of the missing LH-like signal and stimulate testosterone production inside the testes.[3]
A review of anabolic-steroid-induced hypogonadism also notes that HCG can preserve testicular function and help prevent testicular atrophy during suppressed states.[5]
Fertility
HCG & Sperm Production
Maintaining intratesticular testosterone is important for normal sperm production. In a clinical series of men using testosterone together with 500 IU HCG every other day, semen parameters were maintained and no participant became azoospermic during follow-up.[4]
Current AUA guidance also recognizes HCG as an option for men with testosterone deficiency who wish to maintain fertility.[2]
How HCG works
HCG Acts Like Luteinizing Hormone (LH)
HCG does not work by increasing your natural LH level. Instead, it acts on the same testicular receptor as LH. This LH-like action stimulates Leydig cells to produce testosterone when the testes remain responsive.[1]
That distinction matters during testosterone or anabolic-steroid use because exogenous androgens can suppress the body’s own LH and FSH signals. In a controlled study, testosterone alone reduced intratesticular testosterone by 94%, while adding low-dose HCG substantially maintained it. At 250 IU every other day, intratesticular testosterone was only 7% below baseline; at 500 IU every other day it was 26% above baseline.[3]
This is the main scientific reason HCG is used during testosterone therapy, longer steroid cycles and fertility-preservation protocols.
PCT use
HCG After a Steroid Cycle
HCG is commonly used around the end of an anabolic-steroid cycle to stimulate testicular testosterone production before or alongside the broader recovery phase.
Published clinical literature on anabolic-steroid-induced hypogonadism describes HCG use after anabolic-steroid exposure and reports low-dose HCG protocols among users seeking to preserve or restore testicular function.[5]
See all PCT products in Thailand →
TRT / HRT use
HCG With Testosterone Therapy
For men using testosterone who still care about fertility or testicular function, HCG can be used concurrently rather than waiting until testosterone is stopped.
For the separate HCG-only testosterone protocol currently discussed by Thai Anabolics, see HRT with HCG in Thailand →
Preparation
Mixing HCG 5000 IU
The HCG vial contains lyophilized powder and must be mixed with the supplied diluent before use. For Thailand orders, the current product includes one 5,000 IU HCG vial and one vial of sterile water for mixing.
The amount of liquid added determines the final concentration. Because HCG brands and supplied diluent volumes can vary, this page does not hard-code one mixing volume for every package.
Use the HCG Calculator
Enter:
1. 5,000 IU as the total vial amount
2. The actual liquid volume you added
3. The IU amount you want to measure
After Reconstitution
Gently mix the vial until the powder is dissolved rather than vigorously shaking it.
Reconstituted HCG products are normally refrigerated. The exact permitted storage time depends on the current brand and diluent, so follow the storage instructions supplied with the product rather than using the expiry period from a different HCG manufacturer.[1]
Do not freeze the mixed solution.
Product details
What Is Included With HCG 5000 IU?
1 × 5,000 IU vial
Sterile mixing water included
Original labels & box
May vary by availability
Thailand delivery
Buy HCG 5000 IU in Thailand
Thai Anabolics supplies HCG from stock within Thailand with free Thailand shipping. Thailand orders include the HCG vial and sterile water for mixing. Brand may vary according to availability, and current price and stock are always shown in the purchase section at the top of the page.
For international orders, the sterile mixing water is not shipped. It will be shipped with its original labels.
Sources
HCG Sources
- DailyMed. Novarel (chorionic gonadotropin) for injection. Official prescribing information describing HCG’s LH-like action, Leydig-cell testosterone stimulation, reconstitution and refrigerated storage after mixing. View DailyMed
- American Urological Association / American Society for Reproductive Medicine. Diagnosis and Treatment of Infertility in Men Guideline. The guideline recognizes HCG as an LH analogue and as an option for men with low testosterone where fertility preservation is important. View guideline
- Coviello AD, et al. Low-dose human chorionic gonadotropin maintains intratesticular testosterone in normal men with testosterone-induced gonadotropin suppression. J Clin Endocrinol Metab. 2005;90(5):2595–2602. View on PubMed
- Hsieh TC, Pastuszak AW, Hwang K, Lipshultz LI. Concomitant intramuscular human chorionic gonadotropin preserves spermatogenesis in men undergoing testosterone replacement therapy. J Urol. 2013;189(2):647–650. View on PubMed
- Rahnema CD, Lipshultz LI, Crosnoe LE, Kovac JR, Kim ED. Anabolic steroid-induced hypogonadism: diagnosis and treatment. Fertility and Sterility. 2014;101(5):1271–1279. The review discusses HCG for testicular function, testicular atrophy and recovery after anabolic-steroid use. View study
Written by
Adrian
Adrian writes practical, experience-led content covering testosterone, PCT, anabolic compounds, fertility-preservation strategies and the fitness industry in Thailand. On this page, the focus is HCG dosage, cycle and PCT timing, testicular function, fertility, mixing, storage and buying HCG in Thailand.
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