March 2007 in “The FASEB Journal” Henna mixed with PPD can cause skin reactions, scarring, and a specific type of baldness, and needs more research to understand these effects.
July 2013 in “Faculty of Health; Institute of Health and Biomedical Innovation” Prostaglandins don't genetically contribute to hair loss.
1 citations
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January 2022 in “Rasayan journal of Chemistry” Albizia saponaria bark ethanol extract, particularly at 15%, promotes hair growth in rabbits.
March 2026 in “Mendeley Data” March 2026 in “Mendeley Data”
February 2009 in “Journal of The American Academy of Dermatology” Yellow dots look different in various hair loss conditions and can help diagnose them.
13 citations
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October 2017 in “Anais Brasileiros de Dermatologia” Yellow dots in hair and scalp examinations are important for diagnosing different scalp conditions.
39 citations
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January 2011 in “Archives of Dermatology” Reflectance confocal microscopy confirms that yellow dots are signs of damaged hair follicles in alopecia areata.
14 citations
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April 2017 in “Dermatology practical & conceptual” Yellow dots are common in severe alopecia areata.
21 citations
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January 2014 in “International Journal of Trichology” The study concluded that yellow dots are a common and useful sign for diagnosing alopecia areata in dark-skinned individuals and may indicate the severity of the condition.
8 citations
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August 2017 in “Skin appendage disorders” Red dots on the upper chest may be an early sign of certain types of hair loss.
6 citations
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January 2016 in “JAMA Dermatology” Dirty dots are a common scalp finding in elderly women and can be washed away with shampoo.
14 citations
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June 2013 in “Anais Brasileiros de Dermatologia” Follicular red dots may be a normal feature seen in people with less skin pigmentation, not necessarily indicating a scalp disorder.
February 2013 in “Journal of the American Academy of Dermatology” Follicular red dots can appear where alopecia areata and vitiligo overlap.
1 citations
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June 2020 in “IP Indian journal of clinical and experimental dermatology” Yellow dots were the most common sign of alopecia areata found using trichoscopy.
15 citations
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November 2016 in “Journal of The American Academy of Dermatology” Exclamation mark hairs suggest early scalp disease, while white dots indicate it's chronic.
5 citations
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December 2018 in “Journal of The American Academy of Dermatology” Some hair products can create false signs on scalp examinations, leading to wrong diagnoses.
2 citations
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June 2020 in “Türkderm Türk deri hastalıkları ve frengi arşivi” Yellow dots and short vellus hairs are key signs for diagnosing alopecia areata using trichoscopy.
June 2019 in “Journal of evolution of medical and dental sciences” Dermoscopy is useful for tracking alopecia areata treatment, with yellow dots and new vellus hairs being good indicators of hair regrowth.
January 2024 in “Dermatology practical & conceptual” The Peripilar sign does not indicate perifollicular infiltrate in hair loss from Androgenetic Alopecia.
8 citations
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January 2020 in “International Journal of Trichology” Different patterns on the scalp help diagnose types of hair loss without needing a biopsy.
42 citations
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June 2012 in “Clinical and Experimental Dermatology” Black dots under trichoscopy can appear in different hair and scalp conditions, not just in alopecia areata.
April 2024 in “Journal of cosmetic dermatology” Children with alopecia areata have more exclamation mark hairs and fewer yellow dots than adults.
19 citations
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December 2008 in “Journal of The American Academy of Dermatology” The authors suggest that a new type of hair loss exists, which is different from alopecia areata.
December 2023 in “Materials Today Sustainability” Scientists made glow-in-the-dark dots from human hair that can detect iron, prevent counterfeiting, and reveal fingerprints.
3 citations
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May 1964 in “Nature”
1 citations
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October 2020 in “International Journal of Research in Dermatology” The study concluded that short vellus hair and yellow dots were the most common signs of alopecia areata, indicating disease activity and remission.
Combining dermoscopy and calcium fluorescent white staining improves diagnosis and treatment of hair fungal infections.
March 2026 in “Indian Dermatology Online Journal” Hair dye ingredient PPD can cause severe allergic reactions, including facial swelling.
September 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.