There are many supplements, that have the same active ingredient as the real things, but I found a great deal of people who are claiming to be "supplement experts" but are actually trying to sell the supplements as their own.
Some supplements are made by companies that don't have any scientific evidence that supports their claims. They are simply marketing a product that doesn't exist. This article is not about the quality of the supplements I buy. I want to find out how effective these are, how effective they are for you, and how long I will be able to take them. I also want to make sure that the products are safe for you, and that they are properly labeled, and that the companies are following the law and are using the best practices. In many cases, I will only buy these products if I know the company will follow all the rules and regulations for supplements, and if the manufacturer is transparent about their product and its effects. There are also many supplements that have not been scientifically tested and don't work at all. For example, a product called Nootropics contains a mixture of two chemicals called L-theanine, which is a natural amino acid that is similar to the brain neurotransmitter glutamate, and caffeine, which is a stimulant.