The p53 protein has various functions in regulating cellular homeostasis, one of which includes transcriptional antagonism of NF-B, a key positive regulator of inflammation [220, 221]
American journal of physiology

How BPC-157 Works BPC-157 promotes rapid recovery and cellular repair by: Stimulating angiogenesis (new blood vessel formation) Enhancing collagen synthesis for stronger connective tissue Reducing inflammation and oxidative stress Regenerating intestinal lining and restoring gut-brain axis balance Improving blood flow, nitric oxide function, and tissue oxygenation Conditions Supported by BPC-157 Therapy Muscle, Tendon & Ligament Repair Muscle tears, microtears, and overuse injuries Tendonitis (Achilles, patellar, rotator cuff, biceps) Ligament injuries (ACL, MCL, meniscus) Sports injuries and post-surgical recovery Joint & Bone Regeneration Osteoarthritis and degenerative joint pain Cartilage loss and stiffness Bone fractures and delayed healing Post-reconstruction ligament rehabilitation Nerve & Pain Syndromes Peripheral nerve damage Sciatica and neuropathic pain Fibromyalgia and myofascial pain BPC-157 and Gut-Brain Axis Health BPC-157 supports the gut-brain axis the communication link between digestion and mental health by repairing the gut lining and reducing inflammation

Its for people with deficiencies in both vitamins
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Without enough B12, these cells can become large and misshapen (megaloblastic anaemia), reducing oxygen flow to your brain and muscles, causing fatigue and weakness