If hormonal, nutritional, or medical factors drive your hair loss, GHK-Cu alone won't overcome them
A low reticulocyte count can be a sign of B12 deficiency because the bone marrow cannot make red blood cells without B12
Because your body uses and excretes B12 rather than storing unlimited amounts, consistent timing helps keep your energy and focus steady instead of peaking and crashing. Many people find that taking B12 late in the day can make them feel more alert right when they are trying to wind down, which may interfere with sleep
Possible Side Effects Vitamin B12 injections are generally very safe
Some patients report mild diarrhoea, nausea, or headache following administration, though these symptoms are usually transient
However, individual results vary based on diet, exercise, and baseline metabolic health