Here are a few guidelines that will help you in purchasing the right supplement at the right price. Firstly, you must compare the different nutritional supplements for their quality. You can also ask for referrals. This simply means that you can talk to other companies who buy that particular product and ask for their customer's feedback about the products quality and effectiveness. You must enquire about the ingredients of the product and find out if it contains some substance that may reduce its effectiveness. You must also find out where the products were produced and tested. This should be done for all kinds of herbal remedies, weight loss supplements, hair supplements, and wellness products.

Secondly, you must make sure that the manufacturer or the wholesaler has a lot of stock of the supplement that you want to order. Also, since supplements come in different forms, like pills, sprays, lotions, gels, powders, capsules, and lubes. These are used to achieve different result in reducing hair growth, weight loss, quitting smoking, improving health, building muscle, and so on. Some of them are also designed to improve health without the side effects which are usually associated with prescription medicines. Thus, you must check if a supplier stocks all the products that you require as and when the customers order them so that your customers wouldn't have to find a new retailer.
Next, you must buy the supplements that your customers order often and keep a big stock with you since the supplier may run out of stock.

You may want him to put your label on the product and sell it as your product to establish a brand. You may also ask him to alter his formula and customise the supplement itself to meet your requirement.
To reiterate, it is not only essential to compare the price of the product, but also to judge the quality and the service of the wholesaler or manufacturer. Once you do this your customers can be assured to get the best quality products from you at reasonable prices.