Double Wood Supplements Coupons High quality dietary supplements. * These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Double Wood Supplements Coupons It is most commonly used as a supplement for its anti-inflammatory and anti-diabetes properties, and is also used to reduce liver production of glucose. No product is more proven or effective at preventing hangover symptoms including headaches, nausea, brain-fog.