these cotton balls are perfect for all kinds of uses - for treating wounds, applying facial care products, removing make up and so much more. having a pack of cotton balls at home is high recommended.
most products come with directions for how to use them but if the product is not branded or doesn't have any label or packaging, you can check online or ask friends for directions for use.
consumer goods products made by manufacturers will typically come with instructions for use; if you don't find this enclosed, exercise caution before using or consuming any product you're unfamiliar with.