5 citations,
July 2006 in “Contact dermatitis” Ammonium bisulfite in hair bleach can cause facial eczema.
November 2013 in “Annales de Dermatologie et de Vénéréologie” Cinnamon essential oil can cause severe or unusual skin reactions, with cinnamaldehyde being the main allergen.
84 citations,
October 2007 in “The Journal of Immunology” Myeloid-derived suppressor cells help control autoimmune cells and promote hair regrowth in alopecia areata.
24 citations,
May 2006 in “Journal of Investigative Dermatology” Chronic contact eczema may help hair regrowth in alopecia areata by reducing certain immune cell movement.
21 citations,
October 2014 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Hair dyes can change hair color temporarily or permanently but may cause side effects like skin reactions and hair damage.