Testosterone vs Testosterone cypionate
Written by Aaron CuhaReviewed Sep 2026
The short answer
The hormone, and the form most often prescribed in the United States. The attached chain does not change what testosterone does. It changes how fast it arrives, which is what dosing gaps and blood test timing are really about.
- Testosterone people
- 5,246
- Testosterone nulls
- 0
- Testosterone cypionate people
- 5,246
- Testosterone cypionate nulls
- 0
Dose
Approved medicine. No human dose established for unlabelled uses
Labeled amounts sit on the prescribing information. This page records what trials measured, not a personal dose.
FDA-approved in several forms for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance in the United States. No testosterone product is approved for women in the United States. That is a known gap, not a verdict on the evidence.
Dose
Approved medicine. No human dose established for unlabelled uses
Labeled amounts sit on the prescribing information. This page records what trials measured, not a personal dose.
FDA-approved as Depo-Testosterone for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance. Not approved for women, or for age-related low testosterone in men with normal levels.
First-hand reports are counted on each profile and never added together. This page sets two published records side by side. It does not pick a winner.
Column A
TestosteroneTestosterone, the principal androgen
The best-tested hormone on this site. A study of 5,246 men settled the heart safety question. A review that pooled 36 studies in 8,480 women covers the half of people nobody talks about.
Column B
Testosterone cypionateTestosterone cypionate, long-chain injectable ester
The most prescribed testosterone shot in the United States. It lasts about eight days in the body. That is why one big weekly shot gives a high and then a crash, and why splitting the same amount smooths it out.
Side by side, on the facts we can check
| What we compare | Testosterone | Testosterone cypionate |
|---|---|---|
| Category | Hormone | Hormone |
| FDA status | FDA-approved in several forms for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance in the United States. No testosterone product is approved for women in the United States. That is a known gap, not a verdict on the evidence. | FDA-approved as Depo-Testosterone for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance. Not approved for women, or for age-related low testosterone in men with normal levels. |
| Half-life | Free testosterone itself clears in minutes to hours. What determines dosing is the ester: cypionate and enanthate run roughly eight days, propionate under a day, and undecanoate several weeks. The ester pages cover what that means in practice. | Roughly 8 days. That single number is the argument: at an eight-day half-life, a fortnightly interval spans nearly two half-lives, so levels at the end of the cycle are a fraction of the peak. |
| Molecular weight | 288.4 Da. A steroid, not a peptide. | 412.6 Da. A steroid ester, not a peptide. |
| How it works | Testosterone is a steroid hormone the body makes from cholesterol. In men it is made mostly in the testicles, on a signal from the brain. Women make smaller amounts in the ovaries and adrenal glands. It works by attaching to the testosterone receptor inside cells, which changes which genes are switched on. The body turns some of it into two other hormones. One is DHT, a stronger form that drives much of its effect on scalp hair and the prostate. The other is estrogen, which drives much of its effect on bone, mood and sex drive in men. Taking testosterone tells the brain to stop sending its own signals to the testicles. That is why it lowers sperm count and shrinks the testicles. | This is testosterone with a chemical tail called cypionate attached. The tail makes it dissolve in oil, so it sits in a small pool at the shot site. The body slowly snips the tail off and releases plain testosterone. So the tail sets how fast it comes out, not how strong it is. Once released, it is the same as the testosterone your body makes. It works on the same receptor and turns into DHT and estrogen the same way. How much levels rise and fall between shots depends on the tail and the gap between shots, not on how strong the hormone is. |
| Studies in people | 2 | 1 |
| Evidence | Moderate: 1 completed trial, 5,246 people given it | Moderate: 1 completed trial, 5,246 people given it |
| Legal status, US | FDA-approved, prescription only | FDA-approved, prescription only |
Frequently asked questions
What is the difference between Testosterone and Testosterone cypionate?
Testosterone: The best-tested hormone on this site. A study of 5,246 men settled the heart safety question. A review that pooled 36 studies in 8,480 women covers the half of people nobody talks about. Testosterone cypionate: The most prescribed testosterone shot in the United States. It lasts about eight days in the body. That is why one big weekly shot gives a high and then a crash, and why splitting the same amount smooths it out.
Which has stronger research evidence, Testosterone or Testosterone cypionate?
Each compound gets a band worked out from facts we counted, with the math shown. Testosterone is Moderate (1 completed trial, 5,246 people given it). Testosterone cypionate is Moderate (1 completed trial, 5,246 people given it). That counts how much has been done in people. It does not rate whether either one works, and neither one is called the winner.
Are Testosterone and Testosterone cypionate FDA-approved?
Testosterone: FDA-approved in several forms for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance in the United States. No testosterone product is approved for women in the United States. That is a known gap, not a verdict on the evidence.. Testosterone cypionate: FDA-approved as Depo-Testosterone for male hypogonadism, when a man's body makes too little testosterone. A Schedule III controlled substance. Not approved for women, or for age-related low testosterone in men with normal levels..
Reviewed Sep 2026. This page puts two published records side by side. It is for learning, and it is not medical advice. When this site shows a dose, it is the dose a trial or a clinic actually used, or what people say they did, with the source attached. None of it tells you what to take.