Can Testosterone Pellets Cause Hair Loss? Explained

Medically reviewed by Dr. Bilal Khan M.B.B.S.
Written by Our Editorial Team
Last updated

Testosterone is a vital hormone with significant effects on the body, including libido, muscle mass, and memory. However, as men age, testosterone levels naturally decrease, and testosterone replacement therapy (TRT) has become a popular solution. One form of TRT is testosterone pellets. In this article, we're going to delve into the question: Can testosterone pellets cause hair loss?

Can Testosterone Pellets Cause Hair Loss?

Yes, testosterone pellets can contribute to hair loss, although this is not a common side effect for everyone. The relationship between testosterone and hair loss is complex and largely depends on individual genetic makeup. The hair loss is typically due to the conversion of testosterone into Dihydrotestosterone (DHT), which can shrink hair follicles and make them dormant. However, this effect is more likely in individuals with a genetic predisposition to hair loss.

The Role of Testosterone and DHT in Hair Loss

Testosterone in the body exists in different forms, with "free" testosterone being the most available to act within the body. An enzyme called 5-alpha reductase converts testosterone into DHT, which is found in skin, hair follicles, and the prostate. DHT plays a pivotal role in hair loss, particularly in those with sensitive hair follicles. These individuals may experience hair loss more easily due to their follicles' sensitivity to DHT.

Testosterone Pellets and DHT

Testosterone pellets, a form of testosterone replacement therapy, can lead to an increase in DHT levels. When testosterone is introduced into the body via pellets, some of it can be converted into DHT, potentially leading to hair loss in individuals with sensitive hair follicles. However, not all individuals will experience this side effect, and it largely depends on the individual's genetic sensitivity to DHT.

Treatment Options for Testosterone-Related Hair Loss

If hair loss is experienced after starting testosterone pellet therapy, there are several potential treatment options. Adjusting the dose of testosterone may alleviate the issue. Additionally, DHT blockers such as saw palmetto or finasteride can be used to prevent the conversion of testosterone into DHT. Other non-hormonal treatments, such as minoxidil (Rogaine) or ketoconazole, can also be considered.


In conclusion, testosterone pellets can contribute to hair loss, but this is not a universal side effect and depends largely on individual genetics. If you are considering testosterone replacement therapy and are concerned about potential hair loss, it's crucial to discuss this with your healthcare provider. They can help assess your risk and discuss potential treatment options should hair loss occur. Remember, while hair loss can be a distressing side effect, there are many potential solutions available to help manage it.

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Dr. Bilal Khan M.B.B.S. graduated from the Jinnah Sindh University in Karachi. He'll take the official medical licensing program in the US (USMLE) in September 2023. Bilal has a passion for research and has extensively fact-check and medically review articles under his name to make sure you have the most accurate information.