3 citations,
April 2011 in “Expert Review of Dermatology” Mesotherapy lacks strong evidence for effectiveness and safety, and its ingredients are not FDA-approved for subcutaneous use.
194 citations,
March 2003 in “American Journal of Pathology” Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.
January 2017 in “Elsevier eBooks” Stress and hormones like progesterone can affect absence seizures, but their effects change with different life stages.
23 citations,
July 2003 in “Pharmacology, Biochemistry and Behavior” Finasteride blocks progesterone's effect on absence seizures in rats.
8 citations,
October 2014 in “Journal of analytical toxicology.” Chemical hair straightening significantly reduces detectable drug levels in hair.
159 citations,
December 2007 in “American Journal of Pathology” Stress-related substance P may lead to hair loss and negatively affect hair growth.
31 citations,
April 2007 in “Experimental Dermatology” Stress in mice delays hair growth and treatments blocking substance P can partly reverse this effect.
24 citations,
April 2013 in “PLOS ONE” TNFα, IFNγ, and Substance P significantly affect prolactin levels in human skin, suggesting new treatments for skin and hair conditions.
171 citations,
July 2007 in “Journal of Investigative Dermatology” A substance called DKK-1 increases in balding areas and causes hair cells to die when exposed to DHT.
36 citations,
April 2016 in “British journal of dermatology/British journal of dermatology, Supplement” A substance called VIP might protect hair follicles from being attacked by the immune system, and problems with VIP signaling could lead to hair loss in alopecia areata.
13 citations,
February 2023 in “Aging” A substance from hair follicle stem cells helps heal skin wounds in diabetic mice by promoting cell growth and preventing cell death.
13 citations,
March 2020 in “Frontiers in cell and developmental biology” A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.
11 citations,
May 2016 in “Naunyn-Schmiedeberg's Archives of Pharmacology” A substance called 15-deoxy prostaglandin J2 can cause hair follicle cells to die, which might explain how prostaglandin D2 can lead to hair loss.
9 citations,
January 2018 in “Acta dermato-venereologica” A substance called poly(I:C) increases a protein called carbonic anhydrase II in skin cells, which might help with skin defense and healing.
8 citations,
April 2011 in “Surgery today” A substance called sodium zinc dihydrolipoylhistidinate can significantly reduce hair loss caused by chemotherapy in rats.
6 citations,
July 2012 in “Experimental Dermatology” The substance from human hair root cells can help maintain hair growth and make skin cells more capable of growing hair.
4 citations,
January 2018 in “Forensic Science International” Researchers created a reliable method to detect hair-growth substances in products.
4 citations,
January 2001 in “Archives of Biochemistry and Biophysics” Activated ras can protect kidney cells from a certain substance that causes cell death.
56 citations,
November 1993 in “Journal of The American Academy of Dermatology” Capsaicin cream quickly relieved itching in two patients with brachioradial pruritus.
179 citations,
June 2000 in “The American journal of pathology” The absence of functional sebaceous glands causes hair follicle destruction and scarring alopecia.
101 citations,
January 1997 in “Journal of Investigative Dermatology Symposium Proceedings” Nerves and chemicals in the body can affect hair growth and loss.
66 citations,
July 2007 in “Journal of Molecular Medicine” Stress increases certain chemicals in the skin and nerves, which might worsen skin conditions.
7 citations,
October 2000 in “Allergo Journal” Stress may affect hair growth by influencing hair follicle development and could contribute to hair loss.
January 2024 in “Journal of dermatology and skin science” Topical aprepitant reduces skin rash and hair loss caused by cancer treatment.
January 2017 in “Springer eBooks” The document concludes that scalp health is influenced by complex factors affecting sebaceous glands, including hormones, aging, and various substances.
August 2023 in “Stem Cell Research & Therapy” A substance called Cell-free fat extract can effectively treat common hair loss by increasing hair growth and density.
8 citations,
July 2010 in “Aesthetic Plastic Surgery” Adding more glutathione to the preservation solution doesn't reduce oxidative stress in hair transplants.
96 citations,
September 2021 in “International Journal of Molecular Sciences” Chitosan, a natural substance, can be used to create tiny particles that effectively deliver various types of drugs, but more work is needed to improve stability and control of drug release.
December 2023 in “The journal of physical chemistry. B (1997 : Online)” Human hair keratin might be good for filtering out harmful substances from water.
February 2022 in “Mediators of Inflammation” Women with Polycystic Ovary Syndrome (PCOS) have lower levels of a substance called DIAPH1 in their blood, which is linked to changes in sugar metabolism and insulin resistance.