PreserVision AREDS2 Formula, 180 Soft Gels No. 1 doctor recommended brand (Data on file for No. 1 doctor recommended brand). New. Patented formula. Based on the only clinically proven formula. Now 2 per day. Completed in 2013, the Age Related Eye Disease Study 2 (AREDS2) was a 5-year study conducted by the National Eye Institute (NEI) of the National Institutes of Health. Complete AREDS 2 Formula: This advanced PreserVision AREDS 2 Formula contains the exact same levels on the latest clinical evidence from the AREDS2 study. All 6 clinically proven nutrients. Patented - not available as a store brand. PreserVision AREDS 2 Formula builds on the original, clinically proven PreserVision AREDS Formula, with lutein and zeaxanthin replacing beta-carotene based on the AREDS2 study. The joy of sight. Coupons, Expert advice & more! See insert to join. Current/Former Smokers: This product is beta-carotene free. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.) Made in USA.