MAC Shock-a-holic is a cool purple with a matte finish that is limited edition and retails for $17.00. In comparison, Wet 'n' Wild Your 15 Minutes Aren't Up #2 is a cool purple with a matte finish that is discontinued and retails for $2.29.
Wet 'n' Wild Your 15 Minutes Aren't Up #2 is 80% similar — it is lighter, cooler.