The notion that taking B12 before workouts will increase fat burning or improve performance is not supported by clinical data in individuals with adequate B12 status
If you bought it from a UK supplier then it's much more likely that your they have had them stored at room temperature for days/weeks/months
Cyanocobalamin injection is commonly used for vitamin B12 deficiency related to pernicious anemia, dietary deficiency, gastrointestinal conditions, or surgeries that reduce absorption
The products are top-notch and pricing is better than most labs I've researched
This range lets healthcare providers adjust the dose based on each patients needs
Vitamin B12 is essential for: Energy production (ATP synthesis) Red blood cell formation Healthy nerve function DNA and RNA synthesis Detoxification and homocysteine regulation Mood and cognitive performance Its especially important for vegans, vegetarians, or those with digestive issues, as natural B12 is primarily found in animal-based foods