it is brought on by a lack of vitamin B12 in the diet or poor absorption
I use it combined with the NAD shots and I had energy all day long

The GLOW Blend's comprehensive effects on skin biology make it a valuable research tool for investigating dermal regeneration, photoaging mechanisms, and the molecular basis of age-related skin changes. Chronologically aged skin exhibits characteristic features including reduced collagen density (declining 1.0-1.5% annually from early adulthood), decreased fibroblast activity, compromised barrier function, and diminished regenerative capacity, with research demonstrating that collapsed senescent fibroblasts produce low collagen while generating high levels of matrix metalloproteinases that degrade existing ECM. The GLOW Blend addresses these multifaceted aging processes through coordinated mechanisms: GHK-Cu resets aged gene expression patterns to match younger profiles while stimulating fibroblast synthetic activity, BPC-157 enhances cellular migration and proliferation essential for tissue renewal, and TB-500 restores cytoskeletal dynamics that enable efficient cellular responses to regenerative signals. Laboratory investigations demonstrate that GHK-Cu application significantly increases skin thickness, improves hydration, and stimulates collagen synthesis in experimental tissue models, with 70% of subjects showing improved collagen production compared to 50% with vitamin C and 40% with retinoic acid in controlled studies

High vitamin B12 levels are often seen as less concerning because they usually dont cause symptoms and are typically the sign of an underlying condition, not a direct health risk 2 , 5
It is unlikely to cause harm, as most expired medications and supplements do not usually become toxic