Beta-Endorphin
Also known as: β-endorphin, beta endorphin, POMC fragment
Beta-endorphin is a 31-amino-acid endogenous opioid peptide, derived from the precursor protein proopiomelanocortin (POMC), produced mainly in the pituitary gland and hypothalamus. It activates the mu-opioid receptor and is studied for its roles in pain modulation, stress response, reward, and mood regulation.
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Overview
Peptide hormone in humans
β-Endorphin (beta-endorphin) is an endogenous opioid neuropeptide and peptide hormone that is produced in certain neurons within the central nervous system and peripheral nervous system. It is one of three endorphins that are produced in humans, the others being α-endorphin and γ-endorphin.
Mechanism of Action
Enzymatic processing of POMC releases beta-endorphin, alongside other hormones such as ACTH. Beta-endorphin binds strongly to mu-opioid receptors on neurons and immune cells. This receptor activation can reduce neuronal firing in pain pathways and modulate reward circuits, making it a focal point in research on natural pain control and stress mechanisms.
Research History
Beta-endorphin was identified in the mid-1970s during research on the brain's natural opioids following the discovery of opioid receptors and enkephalins. Its name derives from 'endogenous' and 'morphine'. A 1979 paper famously described it as 'the brain's opium'. Subsequent research, including a 1991 review, highlighted its functions in the immune system.
What Researchers Are Saying
Community Reports - Not Medical Advice
The following is aggregated from public forums, Reddit, and research communities. These are anecdotal reports from researchers only - not verified clinical data and not a recommendation of any kind.
Beta-Endorphin (also known as β-endorphin, beta endorphin) is studied within the cognitive function and neuroprotection research community. Endogenous opioid derived from POMC studied in analgesia, mood regulation, and reward pathway research.
Last updated October 28, 2026
Research status: active. Beta-Endorphin appears across cognitive function and neuroprotection research forums and academic literature. Researchers note this compound falls in the cognitive category.
Last updated October 28, 2026
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