I started using Clinique products when I was a teen and I have used them ever since and I am 50 (pass for 30's).
It is a daily routine for me twice a day, drink lots of water and use sunscreen. My daughter (19) has followed the same routine since she was young and I introduced her to Clinique.
Right now, I used the Repairwear series of Clinique (laser focus serum). I also use Kaplan MD essential oils on my face daily. I used to use Jose Moran Argon oil (love it) but after a facial while in CA, I loved the Kaplan product and have used it ever since. I also use Trish McEvoy eye serum.
The products are guaranteed if you don't like them, you get your money back. Dermatologists often recommend Clinique.
As for price, they are not cheap but they do last a long time. I purchased the Kaplan oils in CA in May and I am still using them. It just takes a drop twice a day. They were about $100. The Trish McEvoy was about $100 as well and I am well into 5 months with those products. The Clinique is most reasonable, less than $100 and still lasts for months.
Have you seen a dermatologist? Depending on how bad your crows feet are, you might get a benefit from a Dr. visit and see what other options are for you.