![](http://cdn.shopify.com/s/files/1/1751/8933/files/Product_Info_1_1024x1024.jpg?v=1496941401)
![](http://cdn.shopify.com/s/files/1/1751/8933/files/Tonic_Page2_large.png?v=1496936847)
Sodium hyaluronate is the salt form of HA, and is a water-soluble salt that holds 1,000 times its weight in water. Ingredients are in salt form because they are more stable and less likely to oxidize.
sodium hyaluronate has a much lower molecular size than hyaluronic acid (HA), which allows it to penetrate the skin better.
A serum for your scalp.