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Lipstick is displayed in the M.A.C flaghip store in Paris
Lipstick is displayed in the M.A.C flagship store in Paris, on February 28, 2013.
Philippe Wojazer—REUTERS

Saturday marks National Lipstick Day, a made up holiday for makeup lovers to rejoice in the light, dark, bright and sheer possibilities of lip color and definition.

One popular makeup brand is really leaning into celebrating the day. MAC Cosmetics is giving away free tubes of lipstick to customers on July 29, and there is no catch. Customers wanting to try out a new lip color or looking to replace a favorite shade just need to show up to a MAC store or counter to grab a free, full-sized lipstick.

MAC's lipsticks are usually sold for about $17. The deal is exclusive to MAC locations in the U.S.

The free lipstick deal is a part of MAC's Lips Lips Lips lineup, which features a wide range of lip colors, including nude, matte and glossy shades, InStyle reports.

The promotion will last as long as the lipstick lasts, so get to a MAC store near you fast.