Sulfate-free shampoo gentle enough for daily use. Non-irritating, non-comedogenic (won't clog pores), anti-frizz (tested as a regimen), anti-breakage (tested as a regimen). 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 SEEN 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. | SEEN Shampoo Travel Size, 57 ml | Dermstore