Intramuscular (IM) vs. Subcutaneous (SQ)
π IM vs SubQ β Think of It Like This SubQ (Subcutaneous) - Injected into the fat layer right under the skin - Usually belly, love handle, back of arm - Small insulin needle - Slower, steadier absorption - Usually very comfortable π Think: βSoft tissue / fat layerβ IM (Intramuscular) - Injected into the muscle - Usually glute, quad, or deltoid - Slightly longer needle - Absorbs faster because muscle has more blood flow - Can feel a little more sore π Think: βDeeper into muscle tissueβ π§ Which Peptide Goes Where? It depends on how the peptide was designed to work. πΏ Typically SubQ: - Fat loss peptides (AOD, HGH frag, Tesamorelin) - GLP-related compounds - NAD+ - Glutathione (often SubQ or IM depending on comfort) - MOTS-c (commonly SubQ, sometimes IM) These are meant for systemic circulation (whole body effects), and SubQ works great. πͺ Typically IM: - Injury/joint targeted peptides - Regenerative or repair-focused peptides - Some people prefer IM for faster uptake Examples: - Cartalax (often IM or near joint per protocols) - ARA-290 (commonly SubQ, sometimes IM depending on goal) π§© Easy Rule of Thumb If itβs: - Metabolism / fat loss / anti-aging / general wellness β usually SubQ - Joint repair / muscle healing / localized injury β often IM