There are no active IND applications or FDA-registered human clinical trials for BPC-157
The injection technique is identical for both, and the same injection sites work for either compound

While MK-677 doesnt suppress testosterone, staying on it year-round may increase the likelihood of: Mild insulin resistance GH receptor desensitization (potentially, though evidence is limited) Water retention or appetite fatigue Diminished sleep response over time Best practice : Use MK-677 in 820 week cycles , then take 46 weeks off During that time, maintain sleep routines, training intensity, and recovery nutrition Monitor biomarkers like fasting blood glucose , A1C , and blood pressure Growth hormone secretagogues are well tolerated with long-term use but may benefit from periodic cycling to preserve efficacy and manage metabolic feedback. Hameed et al., Hormone Research in Paediatrics How to Maintain Results Post-Cycle Stay in a controlled calorie intake (either slight surplus or maintenance) Keep training intensity high, but adjust volume to avoid CNS fatigue Prioritize high-quality sleep with ZMT and low-light routines Continue strategic cardio (LISS and zone 2 work) for metabolic and cardiovascular health Use data from the cycle to adjust your long-term approach (biofeedback, bloodwork, training logs) Working with a coach from The Swole Kitchen can help you transition smoothly , maintain results, and plan your next performance phase strategically

This exacerbates lipid peroxidation, drives excessive ROS accumulation and neuroinflammation, and ultimately triggers ferroptosis, resulting in irreversible neuronal damage and neurotoxicity (Table 1), suggesting that therapeutic targeting of ferroptosis may offer a promising strategy for the prevention and treatment of NDDs
35 LinS.HiraiS.YamaguchiY.GotoT.TakahashiN.TaniF.et al (2013)