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The most common side effects are injection site inflammation or swelling

The honest answer is that we don't know for certain

However, the most important advantage is the very safe profile of BPC (the lethal dose (LD1) could be not achieved) (Seiwerth et al., 2018), emphasized in terms of its physiological role (assessed using in situ hybridization and immunostaining for BPC 157 in the human gastrointestinal mucosa, lung bronchial epithelium, the epidermal layer of the skin, and kidney glomeruli) (Seiwerth et al., 2018)

Nootropics, often referred to as cognitive enhancers or smart drugs, are substances designed to improve memory and cognitive function

The research in human clinical settings is limited