T.F.
I know you said under $20. BUT... I've been an avid Clinique user since I was about 11. I'm almost 50 and still easily pass for mid 30's. A great skin care routine from early on pays off...
Clinique guarantees their products as well. You don't like them = you don't pay for them.
I'm very faithful to my skin care routine. Right now I use the Repair Wear series, night/ day/ laser focus ... Youth surge. I love these. They are $35+ per container, BUT they last a good 6 months each.
My 16 yr old is using Clinique as well and is as adamant about her skin care as I am. Her skin is flawless.
We also use Clinique sunscreen every day all year & drInk lots of water.
Good luck!