For a longer Retatrutide protocol of 20 to 24 weeks, GHK-Cu can run for the first 12 weeks, take a 4 to 6 week break while Retatrutide continues, then resume for another 8 to 12 week cycle
Dosing Recommendations by Child-Pugh Class Standard GHK-Cu dosing in patients without liver disease typically ranges from 1 to 2 mg subcutaneously, administered daily or 3 times per week
Retatrutide Dosage Protocols from Clinical Trials Phase 2 clinical trials published in The New England Journal of Medicine in 2023 established the foundational retatrutide dosage framework [6]: Standard Retatrutide Dosing Schedule: 4 mg weekly Lower effective dose with moderate efficacy 8 mg weekly Mid-range dose with enhanced metabolic effects 12 mg weekly Maximum studied dose achieving 24.2% mean weight reduction The 12 mg dose demonstrated the most significant metabolic effects but also carried the highest incidence of gastrointestinal adverse events, with nausea reported in 60-80% of participants [7]
Background Omega-3 fatty acids are polyunsaturated fats that are essential for proper cell structure and function
FitzGerald GB, Bauman C, Hussoin MS, Wick MM
For a more detailed breakdown, you can also read our guide on whether liposomal glutathione is absorbed.