RAD-140 (Testolone): A Tracking Guide for a Strong Lean-Mass SARM

RAD-140, also called testolone, is a strong selective androgen receptor modulator (SARM) used for building lean mass and strength. It is one of the more potent compounds in this class, and published case reports have described liver injury associated with its use, which is worth taking seriously.

This is an educational tracking guide, not a recommendation. RAD-140 is an unapproved research chemical, not an approved medicine, and consumer products are frequently mislabeled.

What it is

• A non-steroidal, high-potency androgen receptor activator
• Marketed for lean mass and strength gains
• Associated in case reports with drug-induced liver injury

Typical protocol shape

• Taken orally, once daily, over a defined block of weeks
• Doses and durations commonly reported in research literature; this guide does not prescribe one
• Generally run with a recovery plan due to expected suppression

What to track daily

• Bodyweight and training performance
• Mood, aggression, libido, and energy
• Any nausea, dark urine, or right-side abdominal discomfort, which can signal liver stress

What to track weekly

• Strength progression and bodyweight trend
• Sleep quality and general well-being
• Skin color and any signs of jaundice

Bloodwork worth doing

• A liver panel (ALT, AST, bilirubin) before and during - this matters more here given hepatotoxicity signals
• Total and free testosterone, LH, and FSH before, during, and after
• A lipid panel, as HDL commonly falls

Realistic expectations

• Strong strength and lean-mass response for many users
• Meaningful suppression and possible liver strain are the trade-offs
• Product quality varies widely and is a major real-world variable

Safety notes

RAD-140 suppresses natural testosterone, lowers HDL, and has been linked in case reports to liver injury, so liver monitoring is not optional. Anyone who develops nausea, dark urine, or yellowing should stop and seek medical care. Because the market is unregulated, mislabeling and contamination are common. Most users need to plan for post-cycle therapy and verify recovery with bloodwork.

Peptid AI is an educational and self-tracking tool. Nothing in this post is medical advice. Doses mentioned reflect what is commonly reported in research literature — they are not recommendations. Always consult a qualified physician before starting, changing, or stopping any protocol.