This radiance-boosting serum helps defend against surface free radicals that can cause signs of early skin aging. With 10% vitamin C, it’s effective and safe, even for sensitive skin. Plus, it’s lightweight, non-comedogenic and won’t leave skin feeling sticky or greasy. This radiance-boosting serum helps defend against surface free radicals that can cause signs of early skin aging. With 10% vitamin C, it’s effective and safe, even for sensitive skin. Plus, it’s lightweight, non-comedogenic and won’t leave skin feeling sticky or greasy. First Aid Beauty provides skincare essentials for the most stubborn skin issues. Made with dermatologist-tested ingredients, each formula gently nourishes sensitive skin for discernable, stimulating results.