Our Gua Sha comb is cut from natural jade stone that ranges in color from a dark green to light green with a yellow tint - its use helps ingredients penetrate more deeply and efficiently into the scalp, while promoting microcirculation and relaxation. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Act+Acre products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Act+Acre Scalp Gua Sha | Dermstore