Efficacy and Safety Assessment of Niacinamide Cosmetic Preparation: a Randomized Controlled Trial

Testing the Efficacy and Safety of Niacinamide Cosmetic Preparation: A Randomised, Controlled Trial

Niacinamide in lower concentrations has been recognized as a cosmetic ingredient with hydrating properties. Therefore, aim was to test the efficacy and safety of niacinamide cosmetic preparation in A Randomized, Controlled Trial.

Skin hydration (as use of hydrating cosmetic ingredients) is one of the most interventions for healthy skin and skin barrier function. Therefore, cosmetic ingredients used for this purpose should be examined for their efficacy.

Inclusion Criteria:

• healthy volunteers who gave written informed consent

Exclusion Criteria:

• skin disease, skin damage on measurement sites, use of corticosteroids and immunomodulators a month prior to the inclusion and during the trial, non-adherence to the trial protocol, exposure to artificial UV radiation, pregnancy and lactation