Lancome has an offer of buying 2 items and getting the 3rd free. I think this deal makes sense for items like the eye mask ($18ea) https://www.lancome.com.au/skincare/category/masks-exfoliato… and face mask ($30ea) https://www.lancome.com.au/skincare/range/genifique/advanced… as with the 25% cash back, effectively gives you a discount of 50% if you buy 3 of the same products, plus 3 little samples and free delivery.
The masks are drenched in lancome's genefique essence, which is a great product, IMO.
$25 Cap is not very good since Buy 2 Get 1 Free often is much more than $100