Thats because neither its therapeutic potential nor its safety has been tested on people
Vitamin B12 injections offered can vary in price due to several factors, including dosage strength, your individual treatment plan, and whether additional consultations or tests are necessary

Cycle structures for different goals General anti-aging and skin health: 4 weeks on, 4 weeks off Repeat cycles as needed Many users report retained benefits during off periods for skin-related effects Injury recovery: 6-8 weeks continuous, or until recovery milestone achieved May use intensive protocol initially, tapering to standard after 2 weeks Minimum 4-week break before starting new cycle Athletic recovery and performance: 4 weeks on, 2 weeks off Can continue rotating cycles during training blocks Take extended 4-6 week break every 3-4 cycles Chronic condition support: Longer cycles of 8-12 weeks may be appropriate under medical supervision Lower maintenance dosing during extended use Regular assessment of continued benefit versus potential tolerance What happens during rest periods Many of the structural benefits, collagen remodeling , tissue repair, improved skin texture, persist beyond active peptide use
Testing can detect use for extended periods
Peptides are a very promising class of drugs and several have transformed the treatment of diseases such as diabetes and obesity