I will provide the following info for you:
All products have some claim on the product labels. Some of them are based on a claim, while others are based on scientific evidence. You need to find out what the claim is and what the evidence shows. Then you can make an informed choice. I will provide you with all the products I think help most. Some products may be safe, while some may be dangerous. For example, some products may contain arsenic, which is very harmful to human health. But they may also contain other harmful substances, like formaldehyde, formaldehyde compounds, or carcinogens. The only way to know is to research the claim and find the evidence.
The product should have the best safety record. If you don't know anything about health, you cannot be certain that the product you are buying will be safe. So research the product to see if it has the best safety record. There are several forms of scientific evidence that are available for any health-promoting substance. This evidence includes studies that were done by an independent lab. But these studies may not be very convincing for the products that have been sold by the company.