MAC Triple Impact is a cool lavender with a frost finish that is limited edition and retails for $20.00. In comparison, Anastasia A1 (Norvina Vol. 1) is a cool lavender with a frost finish that is limited edition and retails for $12.00.
Anastasia A1 (Norvina Vol. 1) is 90% similar — it is less shimmery, lighter, warmer.