Lambdapil Shampoo helps to provide thicker, fuller-looking hair, giving new life to thinning hair in both men and women, The special formula contains ingredients which help hair feel refreshed and healthy, leaving no greasy residue, Lambdapil Hair Density Shampoo can be used on a daily basis for hair in perfect condition, . 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 ISDIN 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. | ISDIN Lambdapil Hair Density Shampoo | Dermstore