TLDR 2.5 mg/ml of triamcinolone acetonide is more effective for treating alopecia areata.
This study investigated the optimal concentration of intralesional triamcinolone acetonide for treating alopecia areata by comparing 1.25 mg/ml and 2.5 mg/ml concentrations in 35 patients with 70 alopecic patches. The results showed that 2.5 mg/ml was significantly more effective, with 62.8% of patches achieving more than 75% hair regrowth, compared to the 1.25 mg/ml concentration, where 74% of patches failed to show more than 50% regrowth. No adverse effects were reported, suggesting that 2.5 mg/ml is the minimal effective concentration for managing alopecia areata.
50 citations
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July 2015 in “Journal of the American Academy of Dermatology” Using 2.5 mg/mL triamcinolone acetonide is effective for hair growth in alopecia areata with fewer side effects.
71 citations
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December 2013 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” There are no FDA-approved treatments for Alopecia Areata, and current options have varying success and relapse rates.
244 citations
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January 2010 in “Journal of the American Academy of Dermatology” The document says current treatments for alopecia areata do not cure or prevent it, and it's hard to judge their effectiveness due to spontaneous remission and lack of studies.
148 citations
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December 2018 in “Journal of autoimmunity” Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.
4 citations
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November 2018 in “JAAD case reports” Alopecia areata can sometimes appear as a straight line of hair loss instead of round patches.
May 2018 in “Journal of cosmetology & trichology” Combining platelet-rich plasma therapy with prostaglandin-F eye drops can significantly regrow hair in alopecia universalis.
110 citations
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December 2013 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Alopecia areata is a genetic and immune-related hair loss condition that is often associated with other autoimmune diseases and does not typically cause permanent damage to hair follicles.