The warning of intense feeling made me hesitant to try these, however the tingle is not unpleasant at all. I adore the way these feel on my lips. When I don’t want a liner to show but still want to prevent my lipstick from bleeding, the clear liner is ideal. I also bought a coloured liner from this brand, and it looks great when applied as a liner and fills in my lips entirely. This long-lasting, pleasant matte consistency gives my lips a full, plump appearance.