April 2019 in “Journal of Investigative Dermatology” Caffeine can protect scalp hair follicles from damage caused by UV radiation.
37 citations
,
January 2015 in “Evidence-based Complementary and Alternative Medicine” An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.
14 citations
,
January 2015 in “Hormones and Cancer” Androgen receptor inactivation delays skin cancer onset and reduces incidence in mice, with gender differences in susceptibility.
5 citations
,
February 2019 in “Journal of oceanology and limnology (Online)” Ecklonia cava extract can reduce the damage and stress caused by hair dye.
34 citations
,
January 2012 in “Journal of Dermatological Science” Hydrogen peroxide and monoethanolamine in hair dye can cause dermatitis and hair loss.
15 citations
,
August 2017 in “International Journal of Molecular Medicine” Panax ginseng extract may help prevent hair loss caused by DKK-1.
January 2018 in “SOJ microbiology & infectious diseases” Etanercept, a psoriasis treatment, caused hair loss in a patient.
10 citations
,
January 2013 in “Journal of skin cancer” PKC ε increases hair follicle stem cell turnover and may raise skin cancer risk.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Applying the anti-cancer drug Bortezomib to skin can promote hair growth and increase hair proteins through the GATA-3 factor.
1 citations
,
January 2010 in “Biophysical journal” Hair fluorescence intensity can measure radiation exposure effectively.
101 citations
,
July 1998 in “Journal of Investigative Dermatology” UVB exposure in human skin causes macrophages to produce more IL-10 and less IL-12, leading to immunosuppression.
5 citations
,
March 2012 in “Microscopy Research and Technique” UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.
14 citations
,
January 2008 in “Dermatology” Vitamin D made by the skin plays a role in immune defense and skin health, and more research is needed to understand its full effects.
2 citations
,
March 2017 in “Asian Journal of Beauty and Cosmetology” Caffeic acid protects human scalp cells from UV damage.
February 2026 in “International Journal of Molecular Sciences” Brazilian pepper tree leaf extract effectively protects skin cells from UVC damage and is a strong natural skincare option.
January 2026 in “Aging and Disease” The α-MSH-MC1R-cAMP pathway does not protect skin cells from UVA damage.
August 2023 in “The Indonesian Biomedical Journal” Rosemary essential oil improved hair growth and thickness in UVB-exposed mice.
April 2018 in “Journal of Investigative Dermatology” Nonmelanoma skin cancers have higher levels of certain osteopontin variants than normal skin.
27 citations
,
December 2014 in “Current problems in dermatology” Photodynamic therapy is the preferred treatment for skin precancer due to its effectiveness and safety.
59 citations
,
January 2013 in “Annals of Dermatology” Asian hair is more resistant to UV damage due to higher lipid content.
15 citations
,
July 2022 in “Biomedicines” UGRSKIN absorbs UV like native skin after 21-28 days, making it potentially suitable for clinical use.
9 citations
,
April 2019 in “Biomolecules & Therapeutics” Udenafil may help hair grow by activating certain stem cells.
9 citations
,
February 2014 in “Tissue Engineering and Regenerative Medicine” Conditioned media from human amniotic fluid-derived stem cells helps skin heal and protects against aging from sun exposure.
7 citations
,
January 2002 in “PubMed” Prolonged UVB exposure causes significant skin changes and damage in rats.
February 2016 in “Acta Medica Marisiensis” A woman with chronic hepatitis C had a rare skin condition linked to her illness.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” The protein p21 is more abundant in normal skin cells than in melanoma cells and may help protect against melanoma, with UVB light affecting its levels.
3 citations
,
January 2016 in “Annals of Dermatology” Vitamin D may help reduce inflammation in acne.
99 citations
,
April 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicles help skin immune recovery after UVB exposure.
52 citations
,
September 2018 in “International Journal of Molecular Sciences” Ginseng and its compounds may help hair growth and prevent hair loss, but more human trials are needed to confirm this.
38 citations
,
June 2018 in “Archives of Toxicology” Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.