Are serums worth buying?

Are serums really worth the investment? With so many products on the market claiming to offer a range of benefits, it's hard to know which ones are truly effective. Do they actually deliver on their promises, or are they just a waste of money? As someone interested in skincare and wellness, I'm curious to know if serums are a worthwhile addition to my routine. Can you provide some insight into their potential benefits and drawbacks, and help me decide if they're right for me?