Can You Use Niacinamide 10% + TXA 4% Serum at 19? Dark spots, also known as hyperpigmentation, can be a common skincare concern for many individuals, regardless of age. With the rise of advanced skincare products, ingredients like niacinamide and tranexamic acid (TXA) are gaining popularity for their brightening and corrective properties. If you’re 19 … Continue reading Is Niacinamide 10% + TXA 4% Dark Spot Serum Safe for 19-Year-Olds?