Paula's Choice is an effective skincare brand that has a trusted following over many years, before ingredient-based brands like The Ordinary came out. They have a 15% off sitewide code 'FLASH15' and you can stack it with shopback's increased cashback from 5% to 10%, which makes this an overall discount of 23.5%.
One of their bestsellers is the 2% BHA Liquid which works out to be about $29.08 after discount + cashback.
Shipping is $10 or free for orders above $100.
Thanks Moocher! Did you have any thoughts on the C15 Super Booster? :)