Niacinamide, yemwenso amadziwika kuti vitamini B3, ndiwothandiza kwambiri pakusamalira khungu komanso thanzi. Mavitamini osungunuka m'madziwa siwofunikira kuti akhale ndi thanzi labwino, komanso amapereka ubwino wambiri pakhungu. Kaya imagwiritsidwa ntchito pakusamalira khungu kapena kutengedwa muzowonjezera, niacinamide imatha kuthandiza ...
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