The Inkey List Hyaluronic Acid Hydrating Treatment (£10) utilises the much-lauded moisturising ingredient that helps plump, and soothe, your skin. In this case, however, it promises to do the same for your hair. In addition to HA, the serum also includes panthenol, hydrogenated castor oil, and betaine, an ingredient that also helps make strands softer and silkier.
I've been trying out the Hyaluronic Acid Treatment for a couple of weeks now and am a fan. I have lots and lots of fine hair that's highlighted and hasn't been cut since, oh, about October 2019 due to COVID. That means my ends are about as dry as a broomstick and in desperate need of some moisture, and this stuff has definitely helped. I use it two ways: first, on dry hair to smooth away frizz along my ends and hairline; and second, as a leave-in on freshly washed hair to help keep my hair soft as it air dries. My hair is so long now that I need about 3-4 pumps to coat it from roots to tips, and yes, I can actually use this very close to the roots because it's so lightweight. What I really like about it is how my hair air-dries when I use this — it ekes out soft, ropey waves that stay that way until I wash my hair again.