Specially formulated to last two years. Dated to ensure shelf life. AP certified non-toxic and washable. Acid free and photo safe. Lipstick style twist-up applicator is easy to use. Purple, 1.27 oz. 12/pack Pack of 12. Lasts up to two years with date stamp. Acid-free and washable. Lipstick style twist-up applicator. AP certified non-toxic.