New Kosas Glow I.V. Vitamin Infused Skin Illuminating Enhancer *SPARK* NIB. Brand new never used Glow wherever you feel it with this pearly light champagne liquid skin enhancer that works its magic layered under foundation, as a targeted highlighter, or even mixed into your fave skincare. Packed with Vitaglow-D for luminosity, glutathione to help defend against aging, and algae extracts for nourishment, it’s a must-have for that lit-from-within radiance. How to Use it Spread it over your skin as a base glow, mix it in with your foundation to supercharge your coverage, or tap it over your skin like a highlighter wherever the light naturally hits.