Reviewing another popular K-Beauty skincare product today! This is the brightening @anua.skincare Peach 70 Niacin Serum, formulated with 70% peach extract and 5% niacinamide. Details on the blog today... Reviewing another popular K-Beauty skincare product today! This is the brightening @anua.skincare Peach 70 Niacin Serum, formulated with 70% peach extract and 5% niacinamide. Details on the blog today.