The Claire-ity 25% Vitamin C Serum is a highly-rated facial serum that is known for its potent brightening and anti-aging properties. This serum contains a high concentration of Vitamin C, which helps to promote collagen production, improve skin elasticity, and reduce the appearance of fine lines and wrinkles. It also helps to fade dark spots and even out skin tone. Users appreciate the lightweight and non-greasy formula, as well as the noticeable improvements in their skin's texture and radiance. Many have also reported a reduction in acne scars and an overall improvement in their skin's clarity.