15 citations,
January 2011 in “International journal of trichology” Using a hot iron on wet hair can cause dry, brittle hair with air bubbles inside.
16 citations,
April 2015 in “Lasers in Surgery and Medicine” Using a fractional laser can stimulate hair growth, but the intensity and duration of inflammation are crucial. Too much can cause ulcers and scarring. Lower beam energy and fewer treatments are recommended to avoid damage.
April 2016 in “Journal of The American Academy of Dermatology” People with hair loss have low zinc levels; zinc supplements and laser therapy may help.
10 citations,
January 2018 in “Elsevier eBooks” Burn scars heal abnormally and more research is needed to find better treatments.
May 2005 in “Seminars in Plastic Surgery” The Erbium YAG laser is effective in hair restoration, resulting in high yield and density, but it's not recommended for second replacements or those with good-quality hair.