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It is frequently classified in scientific literature as a stable gastric pentadecapeptide, originally derived from a protein found in human gastric juice

However, breastfeeding and pregnant women need about 2.8 mcg and 2.6 mcg, respectively

A typical protocol looks like this: Initial loading (for severe deficiency or pernicious anemia): Daily or every-other-day injections for 1 to 2 weeks, then weekly for 4 weeks Maintenance (pernicious anemia, ongoing absorption issues): Monthly injections indefinitely General wellness or dietary deficiency: Once every 1 to 3 months, depending on levels Your provider will check your B12 blood levels and recommend the right schedule for you

doi: 10.3389/fendo.2025.1630164 Received 17 May 2025 Accepted 09 July 2025 Published 28 July 2025 Volume 16 - 2025 Edited by Nazli Akin, Vrije University Brussels, Brussels, Belgium Reviewed by Yuan Gao, Gansu Agricultural University, Lanzhou, China Hong-Thuy Bui, International University, Vietnam Updates Copyright 2025 Zhong, Lu, Zhou, Ma, Li, Hu, Wan and Lu

One action is to interfere with tyrosinase, an enzyme that helps make melanin (skin pigment)

Always check compounded semaglutide for any discoloration or changes before use