Use it when youre eating enough to support muscle accretion
In other words, the preservative is the reason the product sits in a different handling class from preservative-free sterile water
Products containing benzoyl peroxide can make your skin more sensitive to the sun, so reduce sun exposure and wear sun protection
Contact your GP if you experience: Unexpected symptoms after starting B12 supplementation, including persistent skin reactions, gastrointestinal disturbance, or mild allergic manifestations Neurological symptoms such as significant tingling, numbness, weakness, or balance problemsthese may indicate B12 deficiency paradoxically, or alternative neurological conditions requiring assessment Unexplained fatigue or malaise that develops or worsens despite supplementation Concerns about medication interactions , particularly if taking metformin, proton pump inhibitors, or other medications affecting B12 metabolism [2] [4] Seek emergency medical attention (call 999) if you develop signs of a severe allergic reaction following B12 injection, including facial swelling, difficulty breathing, or widespread urticaria
Why the gradual approach
Other Options to Ensure Enough Vitamin B If you are not a big fan of needles or want to try other methods first, you can always try a dietary supplement