ACTIVE HALF-LIFE
1-1.5 Days
CLASSIFICATION
Anabolic Steroid
DOSAGE
Men 300-700 mg/week
ACNE
Yes
WATER RETENTION
Low
HBR
No
HEPATOTOXICITY
No
AROMATIZATION
Yes
CARRIER OIL
Grapeseed Oil
MANUFACTURER
Pharmacom Labs
LAB TEST
See Document
WAREHOUSE
International Warehouse 3
SUBSTANCE
Testosterone Propionate
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Pharma TEST P100 (Testosterone Propionate) is one of the best-selling products offered by Pharmacom Labs and is highly recommended as a foundation for both bulking and cutting cycles. Testosterone plays a crucial role in promoting overall health and vitality by enhancing libido, energy levels, immune function, facilitating fat loss, building and preserving lean muscle mass, preventing bone density loss (osteoporosis), and potentially offering protection against heart disease. It works exceptionally well when combined with various other compounds, both oral and injectable (preferably short esters), as part of an effective stack.
With a half-life of approximately 1 to 1.5 days, this fast-release ester is ideal for shorter cycles and helps to reduce bloating.
Synthetic testosterone was first created in 1935 by German biochemist Adolf Butenandt and Swiss chemist Leopold Ruzicka, both of whom won Nobel Prizes for their contributions.
Testosterone is the primary male sex hormone, significantly influencing the development of the testes and prostate, as well as impacting muscle tissue, bone density, and strength. In addition, testosterone is responsible for many vital functions in the human body, including overall health, enhanced libido, energy, immune support, and the prevention of osteoporosis and heart disease. Research indicates that maintaining higher testosterone levels in older men can enhance several factors believed to lower the risk of cardiovascular disease, such as increased lean body mass, reduced visceral fat, lower total cholesterol levels, and improved glycemic control. Testosterone also plays a role in determining gender differences and regulates certain receptors related to platelet aggregation in humans. Furthermore, it affects behavior, mood, and even career choices, while studies suggest that it influences key cognitive functions such as attention, memory, and spatial abilities. Preliminary findings indicate that low testosterone levels may be associated with cognitive decline and possibly Alzheimer's-type dementia, underscoring its relevance in anti-aging therapies.
Athletes often prefer testosterone for its ability to significantly boost muscle mass and strength. As a naturally occurring hormone, testosterone is the most widely used anabolic steroid and is typically the foundation for various cycles and stacks.
In the context of bodybuilding, testosterone is usually administered as an injectable ester or suspension due to its low oral bioavailability and challenges associated with high doses in transdermal or sublingual forms. All forms of testosterone essentially contain the same active ingredient—testosterone—paired with an ester that dictates the release rate and longevity of the compound's effects. In summary, long esters provide a gradual release of the active hormone into the bloodstream, ensuring stable hormone levels over an extended period without creating spikes.
It's important to note that in men, about 5% of testosterone is converted into the more potent androgen dihydrotestosterone (DHT) through 5α-reduction, while approximately 0.3% is transformed into estradiol (the primary female sex hormone) via the enzyme aromatase, which is found in the brain, liver, and adipose tissue. Therefore, it is crucial to take precautions to manage potential side effects. We recommend conducting blood tests and considering aromatase inhibitors during the cycle (anastrozole is preferred) as well as using Selective Estrogen Receptor Modulators (SERMs) such as clomifene or toremifene during post-cycle therapy (PCT).