Felt the Youthbomb Intense tingle yet? 👀🧡 Our founder MK explains why you can feel Youthbomb Intense Skin Renewal Serum getting to work. The secret is its Micro-Spicule delivery system – super-fine Marine Sponge Particles that gently stimulate the skin’s surface, creating that subtle tingling sensation as you apply. A little tingle. Some serious skincare science.