Key Details Fragment 176-191 Molecular Formula: C78H125N23O23S2 Molecular Weight: 1817.12 g/mol CAS Number: 66004-57-7 CJC-1295 Molecular Formula: C152H252N44O42 Molecular Weight: 3647.954 g/mol CAS Number: 446262-90-4 Ipamorelin Molecular Formula: C38H49N9O5 Molecular Weight: 711.85 g/mol CAS Number: 170851-70-4 Potential Research Applications 1
NEWS IN BRIEF 2025s FDA approvals by regulatory designations Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription 27,99 / 30 days cancel any time Subscribe to this journal Receive 12 print issues and online access 269,00 per year only 22,42 per issue Rent or buy this article Prices vary by article type from$1.95 to$39.95 Prices may be subject to local taxes which are calculated during checkout Nature Reviews Drug Discovery 25 , 163 (2026) doi:
Within each active month, the 5-days-on, 2-days-off schedule follows the same logic at the weekly level: it prevents tachyphylaxis (diminished response from constant exposure) while maintaining enough stimulus frequency to produce measurable visceral fat reduction
For more insights into clinically tested peptide compounds, you can read this dermatologist-approved peptide guide
The cycling structure reflects the available pharmacology of the peptide and the broader principle that no peptide protocol should be open-ended
(34300194) The main barriers are logistics: A ketogenic tube feed formulation is required (many hospitals may not have this)