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    Did you mean Substance P?
    Glossary Substance P

    neuropeptide involved in pain perception and inflammation

    Substance P (SP) is a neuropeptide that functions as a neurotransmitter and neuromodulator, playing a key role in pain perception by transmitting pain signals to the central nervous system. It is also involved in inflammatory processes and can influence hair growth by affecting the local immune response and blood flow in the scalp.

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