hCG

hCG stands for human chorionic gonadotropin. It is a hormone the placenta makes during pregnancy. You may know the brand names Pregnyl, Novarel, or Ovidrel.

Your body has a signal called LH. LH tells the testicles to make testosterone. In women, it tells the ovaries to release an egg. hCG copies that LH signal. So the body acts like it got the "go" message.

It is FDA-approved. That means the U.S. government checked it in big studies and agreed it is safe and that it works. It has been used for about 50 years.

One thing to clear up: the "hCG diet" is a scam. The FDA warned about it back in 1976. That weight-loss idea is not what real hCG is for.

People use hCG for three different jobs. Each job uses a different dose.

• Keeping testicles working on TRT. Men on testosterone often shrink their own testicle function. hCG keeps them turned on, so they stay normal size and can still make sperm.
• Coming back after a steroid cycle (PCT). After a cycle, the body's own hormone signal is shut down. hCG wakes the testicles back up.
• Fertility. In IVF, one big hCG shot triggers the ovary to release an egg at the right time. It also helps some men make sperm.

It is not a weight-loss drug. Do not use it for that.

Yes. This is the most proven entry in this whole group.

For men on TRT, hCG keeps the testicles making testosterone and protects sperm. A key study (Hsieh 2013) showed it preserved sperm in men on testosterone.

For fertility, the single trigger shot works to release an egg. It is a standard part of IVF.

For waking the testicles after a cycle, it works in about half of men with low hormone signals over 6 to 24 months. Real, well-run studies back all of this up.

You take hCG as a shot. The dose depends on the job.

• TRT testicle support: about 250–500 IU under the skin, 2–3 times a week. (IU just means "international units," the way this drug is measured.)
• PCT after a cycle: about 500–1,500 IU every other day, for 2–3 weeks, then taper down.
• IVF trigger: one big dose of 5,000–10,000 IU into the muscle, one time.

Most home shots go under the skin (subcutaneous). The IVF trigger usually goes into the muscle (intramuscular). It comes as a dry powder you mix with liquid before use.

The common stuff

The main thing to watch is estrogen. hCG makes the testicles produce more testosterone. Some of that turns into estrogen. Too much estrogen can cause sore or swollen breast tissue (this is called gyno), water bloat, and mood swings.

That is why labs matter. If you use it long-term, check your estrogen (called estradiol) at the start, again at 6 weeks, and at 3 months.

The serious stuff

• Do not use it if you have a hormone-sensitive cancer or unexplained vaginal bleeding.
• In IVF, a big shot can rarely cause OHSS. That is when the ovaries get overworked and swollen. It needs a doctor right away.

This is a real drug for real medical reasons. Use it with a doctor who actually reads your labs. Guessing at your estrogen is how people end up with gyno.

Here are the ways people get hCG, from safest to riskiest.

• Brand (Pregnyl, Novarel, Ovidrel). A real pharmacy product with a prescription. Safest. About $250–$400 a month cash for TRT use.
• Compounded. Made by special pharmacies for TRT clinics. About $80–$120 a month. Also low risk. Supply got tight from 2022 to 2024.
• Research-only (RUO). Sold "for research only," about $30–$50 a month. Higher risk. The market for this is small.
• Gray-market raw from overseas. Cheapest but illegal to import for people. Highest risk and rare for hCG.

One catch with cheaper hCG: once you mix it, it goes bad fast. It can lose strength in 30 to 60 days, even in the fridge. Sellers who never mention this may be shipping weak product. Also watch for "5,000 IU" vs "10,000 IU" label mix-ups, which lead to wrong doses.