Storage and Shelf Life Unreconstituted (lyophilized) peptides are stable at room temperature for shipping but should be refrigerated (2-8 C / 36-46 F) upon arrival
Additionally, people with certain digestive disorders, such as Crohns disease or celiac disease, may struggle to absorb B12 from their diet and might require B12 injections to support digestive health
But, its also used in weight loss treatments
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What has not been established is that supplementing methionine by injection in a person who is not deficient accelerates fat loss
But there is an important distinction: Knowing that NAD+ is required for energy metabolism does not prove that NAD+ injections increase energy in otherwise healthy people