Lightweight, daily leave-on scalp serum formulated to deliver multi-level hydration to relieve dry scalp + optimize scalp health. Key Ingredients:Multi-Molecular Hyaluronic Acid (MMHA): Penetrates surface layers of skin to balance the scalp, soothe dryness + retain moistureAmino Acids: Strengthens hair shaft to keep hair strong + reduce frizz as it growsGlycerin: High molecular humectant that the scalp supports moisture barrier . 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 Daily Hydro™ Scalp Serum, 1 fl oz | Dermstore