September 2024 in “Journal of Clinical Medicine” Permanent makeup can cause delayed allergic reactions, but they can be managed with proper treatment.
125 citations
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December 2016 in “Molecules” Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.
6 citations
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December 2019 in “BMC Complementary and Alternative Medicine” Alcohol extract from Vernonia anthelmintica seeds may help treat stress-related hair loss.
127 citations
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June 2008 in “British Journal of Clinical Pharmacology” Low doses of some substances can be beneficial, while high doses can be harmful or toxic.
19 citations
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November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.
8 citations
,
October 1989 in “International Journal of Dermatology” Cytochrome P-450 enzymes in the skin help break down various substances and could be targeted to treat skin conditions.
November 2025 in “Frontiers of Agricultural Science and Engineering” Rhizobacterial strain RT3 helps lettuce survive drought by producing protective substances like proline.
April 2003 in “Journal of Cutaneous Medicine and Surgery” Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.
3 citations
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November 2022 in “Molecules/Molecules online/Molecules annual” The substances improved hair regrowth and protected hair cells in humans and mice.
8 citations
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July 2022 in “International Journal of Molecular Sciences” Skin cells release substances important for healing and fighting infection, and understanding these could improve skin disorder treatments.
11 citations
,
September 2024 in “Journal of the European Academy of Dermatology and Venereology” Hair regrows faster in alopecia areata than skin re-pigments in vitiligo due to differences in stem cells and treatment effects.
December 2023 in “The journal of physical chemistry. B (1997 : Online)” Human hair keratin might be good for filtering out harmful substances from water.
November 2025 in “Wiley Interdisciplinary Reviews Forensic Science” Hair testing is a useful method for detecting past substance use and recent advancements improve its accuracy and reliability.
January 1990 in “Springer eBooks” Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
3 citations
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May 2020 in “Annals of the Academy of Medicine Singapore” Hair dye can cause serious scalp issues, including skull erosion.
3 citations
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July 1969 in “PubMed” Radiation reduced zinc levels, growth, organ weights, and hair pigment in swine.
97 citations
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September 2011 in “British Journal of Dermatology” The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
18 citations
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September 2016 in “International Journal of Molecular Sciences” Polydeoxyribonucleotide (PDRN) may help lighten skin and treat hyperpigmentation.
1 citations
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October 2010 in “Series in cosmetic and laser therapy” Mesotherapy is a minimally invasive treatment with potential benefits and risks, requiring standardized practices and further investigation.
349 citations
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January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
18 citations
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October 2021 in “Frontiers in Physiology” Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.
8 citations
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February 2013 in “Central European Journal of Biology” Melanocytes are diverse cells important for pigmentation and skin health, influenced by genetics and environment.
2 citations
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June 2019 in “Facial Plastic Surgery” Medical tattooing improves appearance and quality of life, but has potential risks.
1 citations
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July 2025 in “Journal of Cosmetic Dermatology” Lip aging differs from facial aging, needing specific care for barrier, wrinkles, and pigment changes.
1 citations
,
January 2021 in “Brazilian Journal of Medical and Biological Research” Constant light exposure during pregnancy changes newborn rabbits' skin, affecting hair follicles, skin thickness, and pigment cells.
January 2025 in “American Journal of Medical and Clinical Research & Reviews” Cosmetics can contain harmful chemicals that may cause health issues.
Avicennia Marina extract and avicequinone C can reduce hair loss hormone production and increase hair growth factors, suggesting they could be used to treat androgenic alopecia.
March 2021 in “International journal for research in applied science and engineering technology” Herbal hair dyes from tannin-rich plants are effective and safer than synthetic dyes.
December 2019 in “Ukrainian Journal of Veterinary and Agricultural Sciences” Donkey and horse hair have different microscopic structures, which can help tell them apart.
41 citations
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October 2000 in “Dermatologic clinics” Better hair care products are needed to protect against grooming and chemical damage.