Bee pollen, green tea, essential oils, and various plant extracts improve skin and hair health.
Hair care products can cause skin irritation and allergies.
69 citations
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May 2016 in “General and Comparative Endocrinology” External factors can significantly affect hair cortisol levels, so it's not always a reliable stress marker.
111 citations
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March 2012 in “Expert Opinion on Drug Delivery” Liposomes could improve how skin care products work but are costly and not very stable.
97 citations
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September 2016 in “Reviews in Endocrine and Metabolic Disorders” The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.
90 citations
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February 2001 in “The journal of investigative dermatology/Journal of investigative dermatology” Interleukin-1 increases keratin K6 production in skin cells.
39 citations
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March 2008 in “Journal of biological chemistry/The Journal of biological chemistry” GLI2 increases follistatin production in human skin cells.
5 citations
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January 2018 in “Thai Journal of Pharmaceutical Sciences (TJPS)” Riceberry by-products may promote hair growth and skin pigmentation, useful for cosmetics.
1 citations
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September 2017 in “Journal of Investigative Dermatology” Hair care products reduced hair roughness, a combination of Stemoxydine and Resveratrol increased hair density, fermented mackerel oil promoted hair growth, and genes TERT and Bmi-1 helped create new hair follicles.
July 2025 in “Frontiers in Animal Science” Animal fibers are valued for being natural and eco-friendly, but face challenges like price volatility and a focus on meat over fiber.
54 citations
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March 2009 in “BioEssays” Hormones control keratin production in skin and hair.
40 citations
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July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
April 2019 in “Journal of Investigative Dermatology” Dihydrotestosterone (DHT) increases oil production in skin cells by activating mTOR, and mTOR inhibitors can reduce this effect.
September 2017 in “Journal of Investigative Dermatology Symposium Proceedings” Prostaglandin D2 increases testosterone production in skin cells through a process involving reactive oxygen species, which could be a new target for treating hair loss and other skin conditions driven by testosterone.
12 citations
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January 1987 in “Carcinogenesis” TCDD changes skin cell growth and keratin production in mice.
8 citations
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January 2017 in “Korean Journal of Physiology and Pharmacology” Pimecrolimus boosts melanin production and movement of skin pigment cells.
December 2023 in “Journal of ethnopharmacology” Tribuloside can increase skin pigmentation by enhancing melanin production and distribution.
March 2015 in “Journal für Kardiologie (Krause & Pachernegg GmbH)” Testosterone affects skin by increasing oil production and influences hair growth.
1 citations
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May 2024 in “Pharmaceutics” Hemp is a promising ingredient for skin products due to its healing and soothing properties.
4 citations
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July 2025 in “Cosmetics” Olive mill wastewater can be used as a sustainable source of skin-benefiting ingredients.
26 citations
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May 2021 in “International Journal of Molecular Sciences” Cheonggukjang may help prevent and manage various diseases and improve overall health, but its odor and safety concerns need addressing.
6 citations
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April 2025 in “Food Bioscience” Fish scale collagen peptide speeds up wound healing effectively.
33 citations
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August 2009 in “Journal of Investigative Dermatology” Overexpressing the epigen gene in mice leads to enlarged sebaceous glands and greasy fur.
10 citations
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February 2014 in “Fitoterapia” Pomiferin may improve skin and hair by increasing important protein production.
7 citations
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May 1985 in “Archives of dermatology” Vitamin D is important for more than just bone health.
1 citations
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December 2017 in “Research for Rural Development/Research for Rural Development (Online)” Neutered ferrets often develop hyperadrenocorticism, with symptoms like hair loss and lethargy, and androstenedione is a key indicator for diagnosis.
1 citations
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January 2005 in “Experimental Dermatology” MC-1R in skin cells may influence inflammation and collagen production.
May 2026 in “Journal of the Egyptian Womenʼs Dermatologic Society” Microneedling radiofrequency improves skin texture and tone by stimulating collagen and elastin.
May 2025 in “Experimental Dermatology” Triphenylphosphine oxide can increase oil production and reduce inflammation in skin cells without affecting TRPM5.
January 2025 in “Journal of Aesthetic Nursing” Microneedling works better when combined with other treatments.