Milk Makeup Slayer is a warm plum with a pearl finish that is permanent and retails for $24.00. In comparison, Chanel Camelia Pourpre (637) is a warm plum with a luminous finish that is limited edition and retails for $40.00.
Chanel Camelia Pourpre (637) is 85% similar — it is less shimmery, lighter, cooler.