Bio- Microneedling is known as Spongilla spicules. Spongilla spicules are tiny, needle-like structures found in freshwater sponges, specifically in the Spongilla species. These structures are composed primarily of silica and serve as a kind of skeleton, providing structural support to the sponge. They also play a defensive role, deterring potential predators with their sharp points.In skin care, Spongilla spicules have been used in a procedure known as "Bio- Microneedling" or "Spongilla Peeling".

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