Potential Side Effects. Like a ceramide, niacinamide helps to moisturize the skin. "Niacinamide is a powerful ingredient for both skin moisturization and skin brightening," Mun reiterates. "But when used in high concentrations in a skincare formulation, it may cause skin irritation. So, it is recommended to use low concentrations (1-2 percent
Immunity: Niacinamide supports the production of keratin, a type of protein that maintains the skin firm and healthy. Lipid barrier: This vital nutrient helps the skin to produce a ceramide (lipid) barrier, which works to retain moisture. This is extremely valuable for all types of skin, particularly if you have eczema.
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