Hyaluronic Acid applied topically to damp hair acts like a sponge. It soaks up outside moisture and holds it in, making hair strands more hydrated, elastic, and overall healthier. It’s an especially good ingredient for hair that’s extremely dry and damaged.
In addition, hyaluronic acid actually increase the diameter of each strand of hair, so you get a thicker, fuller head of healthy hair.
Leaving it in your hair will allow more of the product to be absorbed into the strands where you want the moisture to be delivered and retained.
For those who DO NOT want to wash their hair every day, this is great as the effect lasts for days.
The natural blue colour comes from spirulina and may fade in natural light.