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The sections were incubated with ammoniacal silver solution (a few drops of ammonia were added into 5% silver nitrate solution until the precipitation disappeared) in the dark for 15 min at room temperature and then washed twice with distilled water
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A: Most people notice a subtle glow within 7 to 14 days of their first session, though visible brightening across the whole skin tone usually appears after 6 to 10 sessions spaced about a week apart
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PMID: 6 WeinsteinSPWilsonCMPritskerACushmanSW
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