Paula's Choice CLINICAL Niacinamide 20% Treatment minimizes pores. This potent serum dramatically reduces enlarged pores and reinforces elasticity. Its key ingredients, acetyl glucosamine and purslane, further refines skin. Suitable for all skin types, the treatment improves blotchy skin tone and fades post-blemish marks. It helps to reduce clogged bumps, revealing a smoother, more radiant complexion.