Among anti-aging procedures, which one has the highest satisfaction in terms of effectiveness?

I’ve reached the age where I can no longer put off anti-aging care. I feel like I need to start taking proper care of myself, so I’m considering anti-aging treatments, but I’ve noticed there are so many different types. They all sound good based on the descriptions, but I’d like to know which treatments those of you who have been consistently receiving them have found the most effective and satisfying. I’d like to get some tips to try out myself, haha.

I'm curious which anti-aging treatment you would choose if you could get just one regardless of price. Is there a treatment that is truly worth the money, even if it's expensive?

Also, please share some tips on what factors you consider when choosing anti-aging treatments and what precautions I should take.