StriVectin's Super-C Retinol™ Brighten Correct Vitamin C Serum combines the power of two potent ingredients into a lightweight serum. Vitamin C plus acerola cherry extract enhances a brighter, firmer and more radiant complexion. NIA-114TM, a retinol-boosted ingredient, improves the skin's smoothness for visibly renewed, glowing and younger-looking skin. Key Ingredients: Vitamin C & Acerola Cherry Extract (a superfruit highly concentrated in Vitamin C): visibly brighten, firm and restore radiance NIA-114TM: retinol-boosted, smooths fine lines and texture for visibly renewed, glowing skin Key Benefits: Brightens Visibly firms Smooths lines Lightweight serum formula Clinical Studies: 97% showed improvement in skin brightness* 100% showed measured improvement in skin firmness** 100% showed no irritation to skin*** Results: *Based on expert grading evaluation on 35 subjects at 6 weeks. **Based on instrumental testing on 35 subjects at 6 weeks. ***Based on tolerability study on 35 subjects at 12 weeks. Tip: To use, remove cap and replace with dropper. Keep the bottle stored with the dropper. Use immediately after opening and store in a cool, dry place. Serum color may intensify over time.