Exceptional purity for peptide research
We've been sourcing research-grade peptides for several years. Rainbow Peptide's vials consistently pass our HPLC verification — purity exceeds 98% every batch. COA matched our internal testing exactly.
RAD-140 (Testolone) is a potent selective androgen receptor modulator (SARM) used in preclinical research for muscle wasting models. ≥98% HPLC purity. Third-party CoA provided. For Research Use Only.
In Stock — Overnight and 2–3 day delivery available
RAD-140, also known as Testolone, is a non-steroidal selective androgen receptor modulator (SARM) developed by Radius Health. It is one of the most studied SARMs in preclinical literature, with research focusing on muscle wasting, bone density models, and neuroprotective biology.
For Research Use Only (RUO). Not for human consumption. Not a pharmaceutical product.
Third-Party Verified
We don't just claim purity — we prove it. Every batch of RAD-140 (Testolone) is independently tested by an accredited third-party laboratory before it reaches you. Your COA is linked to your specific lot number.
Verified purchases from active research labs and scientists
We've been sourcing research-grade peptides for several years. Rainbow Peptide's vials consistently pass our HPLC verification — purity exceeds 98% every batch. COA matched our internal testing exactly.
Third order now. Consistent batch-to-batch results matter enormously in long-term research. Certificate of Analysis is detailed with mass spec data. Would not switch sources.
Verified against our reference standards. Purity >98.2% by HPLC. Packaging was appropriate for temperature-sensitive peptides. Will re-order.