Which procedure would help improve the appearance of wrinkles on calves from sun damage? (photo)

I'm in 60s, weigh 135 and have sun damage. My question is: what is the best procedure to improve skin wrinkles on my calves caused by sun damage? I do not expect skin reduction but only smoothing the skin to significantly reduce wrinkles. I have trie two skin tightening procedures in the past with no results: one on the neck and one on the inner upper arms. I hope to choose a procedure I can have confidence in. Thank you.