Image credit: @kimkardashian

When it comes to great skin, the one thing every complexion can't enough of is hydration. Hydrated skin = happy skin because it can function more efficiently, you'll be less likely to get spots and your complexion will be smoother and more glowing. While you can drink more water, a sure-fire way to drive hydration straight into the skin fast is to factor a hyaluronic acid serum into your routine morning and night. 

And there is one hyaluronic acid serum that Hollywood loves: Dr Barbara Sturm's Hyaluronic Serum, €259. 

Kim Kardashian featured it on her website, the star loves to layer serums and this one has made it into her bathroom cabinet. But it's not just Kim who is devoted to hydrating her skin with this serum. Hailey Bieber told W Magazine “I’m really big on moisture... The one I’m always reaching for is from Barbara Sturm."

Bella Haded also credits her clear, glowing complexion to Sturm's highly coveted facials, while her makeup artist Vincent Oquendo told W Magazine, "Usually in terms of skincare, I'll use Dr. Barbara Sturm's Hyaluronic Serum. It works for any skin type because it's hyaluronic acid, and it just gives the skin that subtle glow underneath the makeup."

Shop the whole Dr. Barbara Sturm collection here.

Image credit: @bellahadid

Bella Hadid has said on Instagram, "A big kiss and shout out to @bbsturm @drbarbarasturm for not only being the woman boss she is, but changing my skin forever with her incredible facials,

Dehydrated skin is more likely to look crepey and have fine lines, especially around the eyes and lip line. This serum contains a combination of short and long chain hyaluronic acid molecules - the shorter chains are smaller and can reach deeper down into the skin to hydrate at a cellular level helping skin to appear plumper, whereas the longer chains tackle surface dehydration and those pesky fine lines and crepiness. 

Top tip: Get the most out of your serums by applying to freshly cleansed or exfoliated skin and lock them in with a moisturiser. 

 Dr Barbara Sturm's Hyaluronic Serum, €259. 

Next up, the capsule Next line that will make your complexion glow.