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volar melanotic macules Congenital Macule of the Tongue: Report of Two Cases and Literature Review | Head and Neck Pathology Oral Melanotic Macule: Symptoms and
Description
Skin types IVVI may require 1014 days at 0.5mg to see noticeable darkening

Elution was monitored at 280 nm
PubMed PMID: 1292918

If TMA production increases the smell can appear within days of starting a supplement