Where to buy Trilogy in Australia

Dewbirdy tracks 29 Trilogy products across 4 Australian stores, priced from $11.99 to $49.99.

17 of them are sold by two or more Australian stores, so there’s a price worth comparing. The biggest gap on a single product is $9.96. Prices last checked 3 November 2026.

Where the gap is widest today: Trilogy Hyaluronic Acid+ Ultra Serum costs $34.69 at the cheapest of 3 Australian stores and $41.99 at the dearest — a $7.30 saving; Trilogy Pro-Collagen+ Power Serum costs $34.99 at the cheapest of 2 Australian stores and $41.99 at the dearest — a $7.00 saving. How we work out the cheapest.