All bottles are plastic and 2oz bottle is a different design from photo.Tinctures contain 40% grain alcohol, rather than what has become the industry standard of 30% or less (watch out for companies that list it as 50 proof, that just means it contains 25% alcohol). Alcohol is what ensures that each tincture is completely sterile and free of any bacteria, spores, or microbes. We also use high quality extracts instead of actual plant material to maximize the concentration of the solutions and minimize the amounts of plant material floating in each tincture. Tincture extracts can be any herb or herbal concoction in an alcohol and other forms. Because alcohol is a universal solvent, it is usually able to extract the essential oils from herbs, as well as extract most of the other chemical compounds the water is unable to extract. But alcoholic tinctures have another, much more important attribute. They absorb into the body faster than any other means of using herbal medicines. This is due to the alcohol base, which starts adsorbing through the stomach wall and even through the mouth upon taking the tincture. Rather than being digested, like other things that are eaten and drunk, the herbs are absorbed right into the bloodstream. Vita Advantage makes all tincture with 40% Alcohol. A well made tincture takes from 8 weeks to 6 months. The alcohol renders it very shelf stable and tinctures can last up to 7 years. HOW TO USE: Tinctures are administered under the tongue and absorbed directly into the blood stream. If you find the taste disagreeable, put it under your tongue and chase with juice. Native to North America, black walnut hulls have been highly regarded throughout the world for their health benefits for ages. The Roman hierologist, Pliny the Elder wrote around 77 A.D. that the black walnut trees had become popular in Rome after making its way there from the Middle East . He also described a unique effect of the tree, which is often referred to as allelopathy, where a substance is produced and secreted by the tree that is toxic to surrounding plants. It is with this allelopathy that the plant derives many of its most popular health benefits. It is said to kill almost 100 different parasites, both in larva and adult stages. There are numerous fungal and parasitic infections that black walnut hulls are commonly thought to help treat. Black walnut hulls are also often highly regarded for their purported antiseptic properties, iodine content, as well as their ability to promote a healthy functioning digestive system. This tincture is formulated with a 1:5 herb to menstruum ratio using wildcrafted Black Walnut Hull grown in the USA. Our tinctures are packaged in amber glass Boston Round bottles with glass droppers attached (8oz and 16oz bottles do not include droppers) and sealed with perforated shrink bands to ensure the purity and quality of the product. Orders are shipped within 1 business day through USPS First Class or USPS First Class International. Active IngredientsThe primary active ingredient found in black walnut hulls is called juglone. Juglone is what gives black walnut hulls their allelopathic properties and is also what is responsible for killing off certain parasites or infections. Juglone is also sometimes used as an herbicide as well as a natural dark brown-orange dye in cosmetics. Juglandin is also found in black walnut hulls and it is used as a black dye in cosmetic products. Black walnut hulls also contain magnesium, manganese, silica, sulfur, copper, and potassium. WARNING: The information provided in this auction has not been evaluated by the FDA and is not to be used as a substitute for advice from a medical professional. Please consult a licensed health care professional before deciding to take any of the aforementioned substances. It is important that they can look at your body type, diet, exercise regimen, and any other important details about your body to see which of these substances are right for you.