Dark and ebony in color, the black obsidian rock is one of the most powerful energies of all the crystals. It brings skin imbalances such as acne, psoriasis, and eczema to the surface and releases them from the body. It also has the potential to improve skin, the black obsidian face roller minimizes pores, prevents breakouts, softens, and hydrates skin. For a more radiant effect, use with your favorite moisturizer, face oil or serum. To use gently glide the crystal roller over your face in outward motions, moving towards the drainage points of your face.