9 citations
,
April 2018 in “Biology of reproduction” Diet changes hormone levels in pregnant ewes by affecting metabolism, not placental synthesis.
August 2024 in “Journal of Photochemistry and Photobiology B Biology” Combining light therapy with certain substances improves hair growth in people with hair loss.
2 citations
,
October 2016 in “European Neuropsychopharmacology”
4 citations
,
January 2025 in “Translational Psychiatry” Remote photobiomodulation improves brain injury outcomes and behavior in rats.
April 2024 in “Communications biology” Enzymes involved in Vitamin A metabolism affect hair growth and type in mice.
April 2024 in “Lasers in medical science” Near-infrared LED light improves skin rejuvenation and hair growth better than white LED light.
PMEE may help reverse greying hair by boosting melanin production.
January 2012 in “Journal of Investigative Dermatology” January 2026 in “Hormones and Behavior” Pregnancy affects fear memory and brain activity in female rats.
7 citations
,
September 2025 in “Psychoneuroendocrinology” Hair analytes decrease with storage, so analyze within six months.
2 citations
,
May 2023 in “Experimental dermatology” New imaging techniques can assess and track changes in mouse acne without harm, aiding treatment choices.
100 citations
,
April 1990 in “The Journal of Clinical Endocrinology & Metabolism” The ovary mainly causes high testosterone in PCO, while the adrenal gland is the main source in IH.
8 citations
,
March 2021 in “Drug testing and analysis” Researchers improved a method to more accurately estimate when and how long a drug was taken using hair analysis.
1 citations
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January 2003 in “Benjamins eBooks” Confinement in farrowing crates doesn't increase chronic stress in sows, but hair cortisol measurements may not reliably indicate stress due to hair growth variations.
November 2025 in “Frontiers in Veterinary Science” A 1.0% tyrosine diet increases melanin in chicken feathers.
September 2023 in “Biomedical Optics Express” New imaging techniques show testosterone delays hair growth and shrinks follicles in mice, but have limited depth for viewing.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Auxin helps root hairs grow in high phosphate by affecting ROS and involving RSL2 and RSL4.
20 citations
,
April 2012 in “Fertility and Sterility” Finasteride causes lasting fertility decrease in rats.
15 citations
,
June 2015 in “Lasers in Medical Science” The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.
11 citations
,
January 2014 in “CellBio” Sex steroids, especially progesterone, can slow down the growth of mouse melanoma cells.
July 2023 in “Journal of lasers in medical sciences” Red laser therapy helped regrow hair in an alopecia areata patient within 21 days.
11 citations
,
December 2016 in “Frontiers in Psychology” Hair style affects perceptions of age, health, and attractiveness more than hair color does.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Different types of PPARγ are found in varying amounts in human skin and its parts, which could affect how skin treatments work.
March 2026 in “Dyes and Pigments” Riboflavin and blue light speed up genipin hair dye, making it fast, glossy, stable, and eco-friendly.
September 2025 in “Acta Medica International” The triple wavelength laser is effective, safe, and well-tolerated for hair reduction in Indian women.
7 citations
,
April 2014 in “Cell biology international” Melatonin treatment helps improve skin health in postmenopausal rats.
May 2017 in “Journal of The American Academy of Dermatology” LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.
April 2013 in “The FASEB journal” Platycarya strobilacea extract significantly improves hair growth and follicle health.
December 2023 in “International journal of high dilution research” Melatonin and Lissotriton improved hair quality and increased activity in mice.
109 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.