styptic pencil 

A styptic pencil is a small stick-shaped tool that is used to stop bleeding from small cuts or nicks on the skin. It is made of an astringent material, such as alum or titanium dioxide, which helps to constrict blood vessels and seal the wound, thereby preventing further bleeding.

Styptic pencils are commonly used in shaving to stop bleeding from small nicks or cuts that can occur while shaving. They are also useful for other minor skin injuries such as paper cuts or razor burn. Some pet owners also keep a styptic pencil on hand in case their pet suffers from a small cut or nail clipping injury.

To use a styptic pencil, simply wet the tip of the pencil with water and apply it directly to the affected area. Hold the pencil firmly against the wound for several seconds until the bleeding stops. You may need to reapply the pencil a few times to fully stop the bleeding.

It is important to note that styptic pencils should only be used on small wounds and should not be used on deep or serious cuts. If you have a deep or serious cut, seek medical attention immediately. Additionally, some individuals may be allergic to the ingredients in styptic pencils, so it is important to test a small area of skin first before using it on a larger wound.

Source: barberbazaar.com.au