The T3 Fit Diffuser is designed to volumize, define curls, and eliminate frizz for wavy, curly or coily hair. Its vented finger extensions distribute heat gently and evenly to speed up drying, while lifting and separating hair for enhanced volume and body. Compatible with the T3 Fit dryer only. 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 T3 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. | T3 Fit Diffuser | Dermstore