4‑Chlorodehydromethyl Testosterone

4‑Chlorodehydromethyl Testosterone exerts its anabolic effects by binding to androgen receptors in muscle tissue, stimulating protein synthesis and increasing nitrogen retention. This leads to enhanced muscle growth and strength gains. The compound exhibits a relatively high oral bioavailability, although it is also hepatotoxic due to the C-17α alkylation necessary for oral administration. Users report that this modification allows it to survive first-pass liver metabolism but places strain on the liver. It doesn’t readily aromatize into estrogen, minimizing estrogenic side effects compared to testosterone; however, other androgenic side effects are possible. The compound's structure also contributes to a moderate level of water retention.

Users report investigating 4-Chlorodehydromethyl Testosterone primarily for its bulking properties, due to significant increases in lean muscle mass. Athletes typically run cycles during periods focused on strength gains and overall size. While less common, some researchers explore its potential in cutting phases, seeking to preserve muscle tissue while reducing body fat; however, this application is often combined with other compounds. It’s rarely used as a standalone PCT agent due to its suppressive nature. The compound has also been studied for its impact on recovery rates between intense training sessions.

Advanced users typically run 4-Chlorodehydromethyl Testosterone cycles ranging from 20–50 mg/day for periods of 6–8 weeks. Intermediate researchers may start with lower doses, around 15–30 mg/day. Cycle length is crucial to mitigate potential hepatotoxicity; exceeding 8 weeks is generally not recommended without extensive bloodwork monitoring. Post-cycle therapy (PCT) is essential following a cycle due to significant suppression of natural testosterone production. Researchers often implement a PCT protocol including SERMs such as Clomiphene Citrate at 50–100mg/day for 4-6 weeks post-cycle.

Users report potential side effects including liver strain (elevated liver enzymes), increased blood pressure, and androgenic effects such as acne and hair loss. Gynecomastia is uncommon but possible. It’s imperative to conduct thorough bloodwork before, during, and after a cycle to monitor liver function, cholesterol levels, and hormone status. This compound is not recommended for individuals with pre-existing liver conditions or cardiovascular issues. Age 21+ only. A comprehensive PCT protocol is vital to restore natural testosterone production. Supplementation with liver support compounds like TUDCA may be considered.

Mechanism of action

4‑Chlorodehydromethyl Testosterone is a dihydrotestosterone (DHT) derivative that binds to androgen receptors, increasing protein synthesis and nitrogen retention; it exhibits limited aromatization but undergoes C-17α alkylation for oral bioavailability.