The muscle of the upper arm (or the thigh or glute, alternatively) is injected with ~1mL (less than a full syringe) of B12
They aren't mutually exclusive
Injection Site Selection for Shoulders For rotator cuff and general shoulder issues, inject subcutaneously within one to two inches of the affected area
5-Amino-1MQ 10mg 39,00 Grail Formula Quality Researched and independently verified with Liquilabs s.r.o
The effect of bone morphogenetic protein-2, bone morphogenetic protein-7, parathyroid hormone, and platelet-derived growth factor on the proliferation and osteogenic differentiation of mesenchymal stem cells derived from osteoporotic bone
Additionally, there is MSM GC Vegan, with plant-based chondroitin (MythoCondro) instead of animal-derived chondroitin, making this formula fully suitable for vegetarians and vegans