HERO WORSHIP: HYALURONIC SERUM

Written by LAURA REGENSDORF
Illustrated by LYDIA McKEE

Before Dr. Barbara Sturm became a household name for skin care obsessives, the German doctor approached well-being with a head-to-toe mindset. Working in orthopedics in Düsseldorf, Dr. Sturm fixed her attention on the long game. How to tamp down inflammation? How to preserve tissue health from the inside out? She understood the body’s own maintenance systems, which is why she zeroed in on hyaluronic acid—a naturally occurring molecule that acts as an important humectant in the joints and skin. Its benefits extended to topical application, so she developed her own formula as a take-home treatment for patients. In 2015, Hyaluronic Serum arrived in its palm-size bottle and became a staple in makeup artists’ kits, VIP carry-ons, and the VIOLET GREY edit. Here’s why, a decade later, the serum remains a skin-quenching standby.

THE GENESIS

To understand a perennial best seller like Hyaluronic Serum, it’s worth revisiting the creation that put Dr. Sturm on the map. This was the aughts, before the acronym PRP (short for platelet-rich plasma) tripped off the tongue in dermatology practices. Thus, to hear about a so-called “blood cream” raised eyebrows, and expectations, in beauty-insider circles. On the hunt for truly regenerative skin care, Dr. Sturm was custom-blending personalized moisturizers, using a freshly drawn vial of a client’s blood with all the growth factors therein. The cream was dubbed MC1, in a nod to her Molecular Cosmetics tagline, and a wave of buzz followed. That wasn’t the only product that looked within for inspiration. Hyaluronic acid, responsible for lubricating the joints and skin tissues, was front of mind for Dr. Sturm. “In medicine, we know it well—it’s naturally present in the body and essential for hydration and healing,” she says. It just wasn’t yet a buzzword. “Many people were confused by the word acid and assumed it was harsh.” Undaunted by the misdirecting language, Dr. Sturm understood it as an instant relief for thirsty skin. The world would catch on.

THE FORMULA

In 2011, Dr. Sturm’s Hyaluronic Serum arrived in classic European fashion: dispensed in single-serving glass ampoules. Smaller than a pinky finger, with a delicate neck designed to snap cleanly off, these individual baubles had the promise of maximum freshness and the simplicity of a predetermined dose. Still, requests would come in for packaging that fared better on the go. That bottle arrived in 2015, with a twist-top dropper that marked the serum’s official debut. Then as now, the formula’s success stems from the combined three molecular weights of hyaluronic acid. “The larger molecules remain on the surface, acting like a moisture magnet and instantly smoothing and plumping the skin,” says Dr. Sturm. “The medium and smaller molecules penetrate deeper into the epidermis, replenishing hydration within the skin cells and supporting elasticity and long-term function.” Biofermented purslane rounds out the antioxidative effects. Expect the full benefits to take effect after a cycle of skin renewal, about 28 days, she advises. “That was always my philosophy: sustainable, anti-inflammatory results that strengthen the skin from the inside out—not just a quick cosmetic effect.”

THE MOMENTUM

That said, plenty of early adherents noticed an immediate hydration boost. Bottles of Hyaluronic Serum turned up backstage at runway shows, working to revive jet-lagged models’ skin; makeup artists kept the formula on hand for an instant red-carpet bounce. As Sturm’s brand grew and the family tree of products sprouted new branches, the best-selling Hyaluronic Serum remained steady at the trunk. “I call it the white T-shirt of skin care because it works for every age, every skin tone,” says Dr. Sturm, calling out the serum’s year-round versatility, whether layered under other treatments or makeup. “It’s often the first product someone discovers in my collection—and the one they never stop using.” The Spanish beauty and fashion firm Puig acquired a majority stake in Dr. Barbara Sturm in 2024, expanding the reach of the brand—and ensuring the Hyaluronic Serum finds even more fans. “I’ve been using it for years,” Katie Holmes told Vogue at a 10th-anniversary celebration for the product. “It feels really good on the skin, and I’ve noticed a big difference in the wrinkle department.” That spells skin care stardom.