Sponge spicules and liquid microneedling: A Korean skincare trend. Korean skincare continues to captivate the world with its innovative approaches to achieving radiant, healthy skin. A recent trend gaining significant traction is the use of sponge spicules in "liquid microneedling" treatments. This article explores what sponge spicules are, how they function as a needle-free alternative to traditional microneedling, their benefits, and important safety considerations. What ar