Keep it cool, dry, and shielded from direct light before use, refrigerating if holding it longer term
Storing and administering a peptide nasal spray is easy and convenient, and there is ample evidence to support the effectiveness of intranasal administration of peptides
[Google Scholar] Figlin 2003 Figlin E, Chetrit A, Shahar A, Shpilberg O, Zivelin A, Rosenberg N, et al
The wellness industry has seized on this, marketing synthetic peptides as a way to 'hack' your body's natural processes
Those are also within normal range too
Even meat-eaters can experience deficiency due to poor absorption, which often relies on a stomach-produced protein called intrinsic factor