Blurring the lines between makeup, skincare and suncare, Hello Sunday’s SPF50 The Illuminating One Glow Primer is a 3-in-1 formula that preps skin for the application of your base products. The primer provides broad-spectrum defence against UVA rays, UVB rays and everyday environmental aggressors. Blended with hyaluronic acid, the velvety formula provides a boost of hydration, while vitamin C and mica particles work to brighten skin's appearance. Wear alone or layer beneath makeup for instant luminosity and protection.