The Isntree Hyaluronic Acid Airy Sun Stick is a lightweight, non-greasy formula contains 8 types of hyaluronic acid to help retain moisture in the skin and protext it from strong UV rays. The Airy Sun Stick is easy to apply and provides broad-spectrum protection against harmful UV rays with an SPF 50+ PA++++ rating. Its compact size and mess-free application make it perfect for travel and touch-ups throughout the day..