Penny Black is a brand that produces hair care products made with premium, natural organic ingredients that are proven to restore hairs youthful thickness, volume, and shine. The brand is passionate about being a cruelty-free company and never tests on animals. All Penny Black products are 100% vegan and plant-based, and 100% GMO-free. The company is COSMOS Certified Green, which means they are completely transparent about the ingredients in their products. Penny Blacks products are audited by COSMOS Organic at every step, from sourcing ingredients to production to packaging.

It is important to note that Penny Black is not related to Penny Black Inc., which produces rubber stamps, rubber stamp sets, stickers, slapstick cling, background papers, card and scrapbooking ideas.

Regarding the penny itself, vinegar and lemon juice are both acids that can be used to clean tarnished pennies. When oxygen binds with copper, they form a new molecule known as copper oxide, which is brownish or sometimes black in color. To clean a penny, one can use a mixture of vinegar, salt, and other ingredients such as ketchup, Tabasco sauce, or lemon juice.