4 citations,
March 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
9 citations,
January 2010 The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
13 citations,
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6 citations,
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5 citations,
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193 citations,
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40 citations,
February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
37 citations,
March 2018 in “Trends in Plant Science” pH, calcium, and reactive oxygen species regulate plant cell growth, with key roles for NADPH oxidases and plasma membrane H+-ATPases.
20 citations,
July 1990 in “Journal of the American Academy of Dermatology” Captopril may cause hair loss, as shown by a woman's hair regrowing after stopping the medication.
20 citations,
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2 citations,
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1 citations,
March 1997 in “Journal of the American Pharmaceutical Association” Pharmacists play a key role in helping patients use over-the-counter products correctly, including those for hair regrowth and smoking cessation.
Henna has many medicinal uses but needs more research to confirm its benefits.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
October 1890 in “Science” Pilocarpin can cause hair regrowth and color change in some cases but not in others, and it may have side effects in animals.
68 citations,
February 2011 in “European Journal of Pharmaceutics and Biopharmaceutics” Keratin films from human hair can potentially replace human nail plates for drug testing.
107 citations,
April 2014 in “The Plant cell” The CAP1 gene helps control ammonium levels and is necessary for the proper growth of root hairs in Arabidopsis.