Skin republic Niacinamide 10%
"I tried this as an economy alternative to Estee Lauder, which I adore, but my purse doesn't. This serum has significantly reduced my facial freckles after 6 weeks of daily use in the mornings. I've tried a few of the other serums, which are excellent value for money and easy to use for daily use or to improve the effects of a mask."

