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GlossaryPiloerection

involuntary hair follicle contraction causing goosebumps

Piloerection, commonly known as goosebumps, is the involuntary reaction where tiny muscles at the base of hair follicles contract, causing the hair to stand up. This response is typically triggered by cold temperatures or emotional stimuli such as fear or excitement, and is a vestigial reflex inherited from our ancestors, who had more body hair and used this mechanism to appear larger or to trap an insulating layer of air.

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Single Follicular Unit Transplantation Reconstructs Arrector Pili Muscle and Nerve Connections and Restores Functional Hair Follicle Piloerection

research Single Follicular Unit Transplantation Reconstructs Arrector Pili Muscle and Nerve Connections and Restores Functional Hair Follicle Piloerection

13 citations , March 2012 in “The Journal of Dermatology”

Hair transplant surgery can rebuild muscle and nerve connections, allowing transplanted hairs to stand up like normal hairs.

research Alpha-1 Adrenergic Receptor Agonist Induced Piloerection Protects Against the Development of Traction Alopecia

5 citations , December 2015 in “Dermatologic Therapy”

Using a certain drug on the skin can help prevent hair loss caused by pulling on the hair.

research Alpha-1 Adrenergic Receptor Agonist Induced Piloerection Protects Against the Development of Traction Alopecia

April 2016 in “Journal of Investigative Dermatology”

Phenylephrine may help prevent hair loss from pulling on the hair roots.

research Beyond Goosebumps: Does the Arrector Pili Muscle Have a Role in Hair Loss?

31 citations , January 2014 in “International Journal of Trichology”

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

research C-Tactile Afferents: The Mystery of Human Emotional Touch Hidden Hair-Deep

July 2025 in “The Journal of Physiology”

C-tactile afferents are linked to emotional touch and social bonding through hair movement.

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community Physio-metabolic method of treating androgenic alopecia. Cold receptors. The relationship between DHT, cold receptors, minoxidil and antiandrogens.

in Research/Science 2 upvotes 11 months ago

A method for treating androgenic alopecia using minoxidil, antiandrogens, exercise, and cold exposure to promote hair growth. Environmental factors and lifestyle changes, like diet and exercise, can improve treatment effectiveness.

Physio-metabolic method of treating androgenic alopecia. Cold receptors. The relationship between DHT, cold receptors, minoxidil and antiandrogens

community Physio-metabolic method of treating androgenic alopecia. Cold receptors. The relationship between DHT, cold receptors, minoxidil and antiandrogens

in Research 413 upvotes 11 months ago

Treating androgenic alopecia with minoxidil, finasteride, and antiandrogens, alongside exercise, cryotherapy, and natural substances to stimulate cold receptors for better hair growth. The method focuses on enhancing treatment effectiveness by considering environmental and behavioral factors and the role of cold receptors and muscle stress.

community Cannabidiol (CBD) Increases Hair Counts By 246%? Not So Fast.

in Research/Science 21 upvotes 11 months ago

CBD may increase hair counts slightly, but results are minimal without additional treatments like minoxidil or finasteride. Some users suggest combining CBD with other methods for better results.

community Why the fuck dont my temples/ vertcle bars become more thicker?

in Minoxidil 10 upvotes 1 year ago

A user is frustrated with slow and thin hair regrowth at the temples despite using Minoxidil for six months, along with dermastamping, oiling, vitamins, and exercise. They are seeking advice on why vellus hairs are not thickening.

community New molecule PP405 vs exercise

in Research/Science 40 upvotes 7 months ago

PP405 targets hair follicle stem cells differently than exercise-induced lactate, suggesting exercise alone may not replicate its benefits. Minoxidil and finasteride are recommended alongside exercise for hair regrowth, with additional suggestions like spicy food and infrared exposure.

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