13 citations
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January 2009 in “The Open Dermatology Journal” This article describes a case of oral pigmentation that posed a diagnostic challenge in determining Addison’s disease and includes a brief review, reporting no new clinical results.
10 citations
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January 1967 in “PubMed” This research reports that oral contraceptives may cause melasma in 24-29% of users, with minimal improvement after stopping the drug and limited effectiveness of hydroquinone treatment.
May 2021 in “Research journal of topical and cosmetic sciences” In this study, oral supplementation of Microcore’s TrichovitalsTM significantly improved the appearance of facial skin, hair, and nails over 12 weeks in healthy middle-aged adults compared to a control group.
30 citations
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June 2006 in “British journal of dermatology/British journal of dermatology, Supplement” In this study, oral zinc sulphate was found to cause hair hypopigmentation and significantly inhibit eumelanogenesis in mice.
2 citations
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November 2024 in “JAAD reviews.” This review reported that certain systemic drugs, including antiepileptics and anticancer drugs, can lead to changes in hair pigmentation, such as hypopigmentation or hyperpigmentation, with varied prevalence and clinical characteristics.