Natural Apothecary: Apple Cider Vinegar - Tips for Home, Health, and Beauty. A guide to the many uses of apple cider vinegar. ACV is good for gut health and can also be used externally to clean your skin and your home. It's a versatile natural ingredient for nontoxic living. Use unfiltered ACV (with the "mother") to healthfully soothe indigestion, sunburn, whack acne, whip up a batch of furniture polish, and more!