Quick Answer
Use iHerb discount code KHQ339 at checkout.
Advanced Hair HealthMarine Collagen With Seaweed Extract Strand ThickeningAnti-FrizzLightweightProud Supporter of Arbor Day FoundationParaben FreeSLS FreeSLES FreeInstant strand-coating lightweight serum for thicker fuller-looking hair.At Viviscal™ we understand the science of healthy hair growth from the inside out.Formulated with hair building blocks Biotin and Keratin and fortified with Marine Collagen and Seaweed extract Viviscal Hair Thickening Serum is a lightweight leave-in treatment that coats each hair strand creating multi-dimensional density without frizz leading to thicker fuller-looking hair.