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General statements about broad compatibility of any diluent with investigational peptides are not supported by authoritative evidence and should not be relied upon

subcutaneous or intramuscular Subcutaneous (SQ or SC) Injections Subcutaneous injections place medication into fatty tissue beneath the skin

NEWS FEATURE Correction 27 February 2025 Exclusive: These universities have the most retracted scientific articles Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Subscribe to this journal Receive 52 print issues and online access $199.00 per year only $3.83 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 638 , 596-599 (2025) doi: Updates & Corrections Correction 27 February 2025 : An earlier version of the main text of this News feature named the wrong Ethiopian university in the examples of institutions that are high up on several leader boards