Testosterone is naturally produced by the human body and is considered the safest anabolic steroid.
This is because the body is already familiar with the effects of testosterone.
There is extensive research on testosterone, so its side effects and how to manage them are well-documented.
On the other hand, modified derivatives of testosterone can cause unexpected side effects, carrying a higher risk.
As a natural anabolic steroid, testosterone affects most people in a nearly identical way. While it’s not without side effects, the methods for managing them are well-established.
Estrogenic Side Effects
Testosterone has the ability to convert into estrogen through the aromatase enzyme, which results in a certain level of estrogenic activity.
When using bodybuilding doses of testosterone, especially at levels needed for enhancing athletic performance and physique, aromatization increases, which can lead to higher estrogen levels.
Consequently, the risk of estrogen-related side effects increases in proportion to the dose.
Therefore, it is crucial to manage estrogenic side effects when using testosterone, and caution is needed as the rate of aromatization depends on the dosage used.
Prevention and Safety
There are two primary approaches to mitigating estrogenic side effects from testosterone.
The first is using an Aromatase Inhibitor (AI) to block the action of the aromatase enzyme.
This prevents the conversion of testosterone to estrogen, thereby lowering total plasma estrogen levels.
The second method involves using a SERM (Selective Estrogen Receptor Modulator) like Nolvadex (Tamoxifen). It works by blocking estrogen from binding to receptors in breast tissue, thus preventing gynecomastia, but it does not actually reduce serum estrogen levels.
Potential estrogenic side effects include water retention, bloating, increased blood pressure, fat accumulation, and gynecomastia.
Androgenic Side Effects
Testosterone is the primary male androgen, and the main reason for androgenic side effects is its conversion into a more potent androgen metabolite, Dihydrotestosterone (DHT).
Testosterone itself has an androgenic strength rating of 100, which reflects its ability to bind to androgen receptors.
However, testosterone is converted into DHT by the 5-alpha reductase (5AR) enzyme, and DHT is found in high concentrations in tissues such as the scalp, prostate, and skin.
This powerful DHT acts as the primary cause of testosterone’s androgenic side effects.
Side Effect Prevention
5-alpha reductase inhibitors (5AR inhibitors) are drugs that block the conversion to DHT. The most common examples are Proscar (Finasteride) and Dutasteride (Avodart).
However, using these drugs does not completely eliminate androgenic side effects, as the androgenic strength of testosterone itself can still have an impact.
In addition to 5AR inhibitors, topical androgen blockers can be used. For example, Nizoral shampoo, with Ketoconazole as its active ingredient, functions as a DHT blocker on the scalp and skin.
Key androgenic side effects include oily skin, acne, growth of body and facial hair, Benign Prostatic Hyperplasia (BPH), and Male Pattern Baldness (MPB).
HPTA and Endogenous Testosterone Production Side Effects
All anabolic steroids suppress or shut down endogenous testosterone production.
Most side effects of testosterone and anabolic steroids are related to the suppression of endogenous testosterone production.
Particularly with excessive cycle lengths or dosages, the risk of endocrine system disruption and suppression of the Hypothalamic-Pituitary-Testicular Axis (HPTA) increases.
This can lead to desensitization of the Leydig cells with long-term use.
Prevention and Safety
After a testosterone cycle, a comprehensive Post Cycle Therapy (PCT) protocol is always necessary.
This involves using testosterone-stimulating ancillary compounds (e.g., Nolvadex), Aromatase Inhibitors (e.g., Aromasin), and HCG to facilitate HPTA recovery and stimulate endogenous testosterone production.
The PCT period typically lasts 4 to 6 weeks and should begin after all steroids have cleared from the body.
Failure to implement a proper PCT can result in permanent damage to the HPTA, leading to hypogonadism, which may require Testosterone Replacement Therapy (TRT).
Hepatotoxic Side Effects
All forms of testosterone, including oral variants like Andriol (Testosterone Undecanoate), are not C17-alpha alkylated anabolic steroids and therefore do not exhibit hepatotoxicity.
Studies have shown that even high doses of oral testosterone used for 20 days produced no signs of liver toxicity.
Although oral administration passes quickly through the liver, injectable testosterone bypasses this first-pass effect, so there is no concern for liver toxicity.
Cardiovascular Side Effects
Anabolic steroids like testosterone can have a negative impact on cardiovascular health, with the main changes being a reduction in HDL (good cholesterol) and an increase in LDL (bad cholesterol).
This is because they increase the activity of hepatic lipase, an enzyme in the liver that breaks down HDL.
Oral anabolic steroids are the most severe in this regard.
The severity of these side effects depends on the dose and duration of use, with high doses and long-term use increasing the risk of Cardiovascular Disease (CVD).
However, testosterone has a less severe impact on cholesterol levels compared to other anabolic steroids and is less hepatotoxic than oral steroids.
Additionally, the use of Aromatase Inhibitors can worsen cholesterol profiles.
Prevention and Safety
It is crucial to control estrogen levels within a normal range rather than completely eliminating them.
The ideal approach is to use a minimal dose of an Aromatase Inhibitor during a cycle to prevent sharp estrogen spikes from aromatization, while ensuring estrogen levels do not fall below physiological levels.
Furthermore, anabolic steroid users must properly manage their nutritional habits to ensure positive outcomes.
