RAD-140 vs SLU-PP-332
Emerging vs Emerging
avoid Mechanism-based · 53% Both RAD-140 and SLU-PP-332 carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently.
Molecular Data
RAD-140 SLU-PP-332
Weight 393.83 Da 290.32 Da
Half-life ~60 hours Under investigation (no human PK data)
Chain — Non-peptide small molecule
Type Nonsteroidal selective androgen receptor modulator (C20H16ClN5O2) Synthetic ERR agonist
Key Benefits
RAD-140
01 Potent anabolic activity in muscle tissue with high oral bioavailability
02 Tissue-selective action sparing the prostate and other androgen-sensitive organs
03 No aromatization to estrogen (no estrogen-related side effects such as water retention or gynecomastia)
04 No conversion to DHT (reduced risk of hair loss and prostate stimulation compared to testosterone)
05 Long half-life (~60 hours) permitting convenient once-daily oral dosing
06 Neuroprotective properties observed in preclinical models
07 Increased lean body mass and reduced fat mass in preclinical studies
SLU-PP-332
01 Exercise mimetic effects without physical activity
02 12% weight loss in 28 days
03 70% increased endurance
04 25% enhanced fatty acid oxidation
05 Improved insulin sensitivity
06 Reduced hepatic steatosis
07 Cardiac protection
08 Reversal of age-related mitochondrial dysfunction
Dosing Protocols
RAD-140
10-20 mg/day / Once daily (oral)
SLU-PP-332
NO HUMAN DOSE ESTABLISHED (animal studies: 50 mg/kg IP) / Research only - not approved for human use
Standard Metabolic Protocol 50 mg/kg (animal dosing) Twice daily
Acute Exercise Enhancement 50 mg/kg (animal dosing) Single dose 1 hour pre-exercise
Extended Treatment 50 mg/kg (animal dosing) Twice daily for 4-8 weeks
Side Effects
RAD-140
Testosterone suppression (dose-dependent, occurs in virtually all users by week 4-6)
Liver enzyme elevation (ALT, AST increases reported in clinical and anecdotal data)
Hair shedding (temporary, typically resolves after discontinuation)
Headaches (most common in the first 1-2 weeks, often transient)
Nausea (mild, usually with initial doses or on an empty stomach)
Lipid disruption (HDL suppression, LDL elevation)
Mild insomnia or sleep disturbance
Reduced libido and mood changes related to testosterone suppression
SLU-PP-332
Animal studies show favorable safety with no severe effects at therapeutic doses
Well-tolerated in rodents and canines
No liver, kidney, or cardiac toxicity documented
No lean mass loss
Does not suppress hormones or act as stimulant
Minor plasma cholesterol and liver enzyme changes in some studies
Contraindications
Pre-existing liver disease or elevated liver enzymes at baseline
Hormone-sensitive cancers (prostate cancer, certain breast cancers not being treated under clinical supervision)
Pregnancy or potential pregnancy (teratogenic risk from androgen receptor agonism)
Breastfeeding
Age under 25 (incomplete endocrine system maturation and higher risk of HPG axis disruption)
Concurrent use of hepatotoxic medications without medical supervision
Known cardiovascular disease (insufficient safety data for this population)
NOT FOR HUMAN USE - no approved human dose
No human clinical trials conducted
Potential interaction with diabetes medications
Research Evidence
RAD-140 SLU-PP-332
Status Emerging Emerging
References 5 studies 4 studies
Latest July 2020 2025
FDA Approved No No
This comparison is for educational and research purposes only. Consult a healthcare professional before use.