bpc-157 skin benefits What Is BPC-157: Benefits, Uses and Side Effects – Era Organics BPC-157 Oral vs Injection: Benefits,
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How long you feel the effects can depend on your starting levels, which is why people with a larger deficiency sometimes notice the benefits over a longer stretch

Chronic Conditions: Individuals with chronic conditions that affect B12 absorption, such as pernicious anemia or gastrointestinal disorders, may need regular injections throughout their lives

Importantly, the current evidence gap should not be interpreted as evidence of ineffectiveness
Kerns, C

What is Methylcobalamin Injection (Vitamin B12)

For patients with obesity or metabolic conditions, GLP-1 therapy is often the more clinically supported option