Parabolan is a brand name for Trenbolone Hexahydrobenzylcarbonate, a powerful anabolic steroid that is a long-acting ester of trenbolone. It is similar to Trenbolone Acetate (Tren A), but Parabolan has a longer half-life, which means it stays active in the body for a longer period and requires less frequent injections. Parabolan is known for its ability to promote significant muscle growth, fat loss, and enhanced performance, making it popular among athletes and bodybuilders.

Key Characteristics of Parabolan:

1. Ester: Parabolan is trenbolone with the hexahydrobenzylcarbonate ester, which makes it slower-acting compared to Trenbolone Acetate. This ester gives Parabolan a longer release time, typically requiring injections every 3-4 days instead of daily or every other day, like Tren A.
2. Action: Parabolan increases protein synthesis, nitrogen retention, and red blood cell production, which leads to faster recovery, muscle growth, and fat loss. It enhances performance by improving endurance, strength, and stamina.
3. Medical Use: Originally, Parabolan was used in veterinary medicine to promote muscle growth in livestock, but it was never approved for human use due to its potency and side effects. It has been discontinued in many markets.
4. Performance Use:
   • Muscle Mass: Like other forms of trenbolone, Parabolan is highly effective at increasing lean muscle mass and strength.
   • Fat Loss: Parabolan is also known for promoting fat loss while preserving muscle, making it popular during cutting cycles.
   • Endurance and Recovery: Athletes use Parabolan to improve endurance and recovery time, which allows for more intense training and faster recovery.
5. Side Effects:
   • Androgenic Effects: Parabolan can cause significant androgenic side effects such as acne, hair loss, and increased aggression due to its strong androgenic properties.
   • Cardiovascular Risk: It can negatively affect cholesterol levels (decreasing HDL, or “good” cholesterol, and increasing LDL, or “bad” cholesterol), which can increase the risk of cardiovascular issues.
   • Suppression of Natural Testosterone: Like all anabolic steroids, Parabolan suppresses the body’s natural testosterone production, which can lead to hormonal imbalances, low libido, and other issues.
   • Other Side Effects: Possible side effects include insomnia, night sweats, and anxiety. Parabolan also has a reputation for causing a “tren cough,” a short but intense coughing fit experienced after injection.
6. Legality: Parabolan is a controlled substance in many countries and is banned by most sports organizations, including those governed by the World Anti-Doping Agency (WADA), due to its performance-enhancing effects.

Summary:

Parabolan (Trenbolone Hexahydrobenzylcarbonate) is a powerful anabolic steroid known for its ability to increase muscle mass, strength, and fat loss while improving endurance and recovery. It is a long-acting ester of trenbolone, requiring less frequent injections compared to Trenbolone Acetate. Parabolan is not approved for human use, has significant potential side effects, and is banned in most competitive sports. Its use in athletics and bodybuilding is often associated with rapid, dramatic changes in physique and performance, but comes with significant health risks, particularly in terms of cardiovascular strain and hormonal disruption.