can b12 injections cause itching Been on T for 5 weeks, all sites suddenly (in the past few days) became red and itchy : r/ftm Vitamin B12 Injection Side Effects
Description
S2CID 4978703

Some people use sublingual delivery (powder held under the tongue briefly before swallowing) but there's no strong evidence this meaningfully improves bioavailability for this compound class
It has benefits in many situations

Incorrect addresses may delay delivery or require additional shipping fees

Have done them three times and will keep using them
