If you've been scrolling through skincare TikTok or Instagram lately, you've probably noticed something interesting happening in the beauty world. Those little solid bars and sticks that look almost like lip balm? They're actually solid serums, and they're quietly revolutionizing how we think about skincare.
I'll be honest - when I first heard about solid serums, I was skeptical. How could something that looks like a fancy soap bar possibly deliver the same punch as my beloved liquid serums? But after diving deep into the science and trying several myself, I'm completely converted.
Why Solid Serums Are Having Their Moment
Think about it this way: traditional serums are mostly water. Sometimes up to 70% water, which means you're paying premium prices for something that's largely H2O mixed with a few active ingredients. Solid serums flip this concept on its head.
Without all that water, formulators can pack in significantly more active ingredients. We
