Bryan Johnson: some friendly advice on peptides

Key Takeaways

• Measure extensively before and after using peptides – Bryan tracked REM sleep, blood sugar, stress hormones, and pancreas function.
• Avoid stacking peptides blindly – Combining Tirzepatide and CJC-1295 DAC caused severe side effects despite theoretical benefits.
• Expect trade-offs – Even “beneficial” peptides like CJC-1295 DAC can disrupt multiple biomarkers (e.g., 8x GH increase came with sleep and metabolic damage).
• Use clinical-grade peptides only – Unregulated peptides without evidence carry unknown risks.

Supplements & Protocols Mentioned

• Tirzepatide (stacked with CJC-1295 DAC)
• CJC-1295 DAC (discontinued after 2 doses due to adverse effects)

Notable Quotes

“If you expect a peptide to be clean and only good, it’s naive. We don’t know much about them.”

Bottom Line

Proceed with extreme caution when experimenting with peptides: measure rigorously, avoid unproven combinations, and prioritize clinically validated compounds.

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