Métange Duality Stone is a 2-in-1 black obsidian massage tool designed for both face and body. Part massage comb and part gua sha, this dual-ended tool helps support circulation, lymphatic drainage, scalp massage, and tension relief as part of a mindful beauty ritual.

Hand-carved from 100% certified black obsidian stone, the Duality Stone can be used with the comb edge to massage the scalp or with the flat edge to glide over the body. It includes an outer metal tin and soft travel pouch for storage and portability. 

Rooted in traditional Eastern medicine, combing therapy is used to stimulate meridian points connected to the scalp. The comb edge may be used to comb through wet hair, massage the scalp, and perform gentle circular motions to help relieve tension.