39 citations
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March 2008 in “Growth hormone & IGF research” Raspberry ketone may help grow hair and improve skin elasticity.
2 citations
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October 2023 in “Science advances” In this study, researchers demonstrated that human hair follicle outer root sheath cells release ATP, serotonin, and histamine in response to mechanical stimulation, which subsequently activates surrounding sensory neurons.
October 2025 in “JCI Insight” In a mouse model, this study found that an ethanol-based rosemary extract speeds up wound healing and reduces scarring by activating the TRPA1 nociceptor in sensory neurons, with carnosic acid identified as a key component.
November 2025 in “Journal of Investigative Dermatology” Keloid fibroblasts cause itch and pain by releasing more histamine.
In this study, calcium imaging in transgenic mice revealed that non-neuronal TRPV4 in the skin enhances afferent signaling during electrical stimulation, suggesting a role for neuroimmune interaction in acupuncture signal initiation.