Shiseido has identified five causes of skin sagging - its new serum targets all of them

There's a particular moment most of us notice, somewhere in our forties or fifties, when skin doesn't just look tired - it starts to look like it's lost its shape. Cheeks sit a little lower, the jawline softens, and the reflection in the mirror feels less like "ageing" in the abstract and more like a specific, tangible shift in structure. It's one of the most common complaints among women navigating midlife skin, and also one of the hardest to address with skincare alone.

Sagging is one of the most visible signs of ageing skin, and one of the hardest to treat - which is likely why Shiseido has spent the last 30 years researching exactly what causes it. Now, the brand says it's identified five distinct factors behind the loss of facial firmness and contour, and has built a new serum specifically designed to target all of them at once.

The new Vital Perfection Intensive Sculptdefine Serum is the latest addition to Shiseido's number one Vital Perfection range, and the brand has revealed it improves sagging, firmness and brightness in just one week.

According to Shiseido's research, the most significant contributor to sagging is the decline of the skin's collagen network - but not simply in terms of collagen levels. The brand's latest findings look at how collagen is structured within the skin, specifically a net-shaped collagen network that helps support facial contours from within. As we age, both collagen levels and this internal support structure decline, making it harder for skin to hold its shape.

Facial muscles play a role too. Shiseido notes that as facial expression muscles weaken over time, they provide less structural support to the skin, making contours harder to maintain. Combined with reduced skin cell activity, slower nutrient delivery and declining nerve function, the brand says these factors accelerate the visible signs of sagging.

To address these causes, Shiseido has developed a new D-AminoLift Complex™, combining SafflowerRED™, Niacinamide and D-Aspartic Acid. Working alongside the brand's existing ReNeuraRED™ Technology - designed to optimise the skin's responsiveness and regenerative capacity - the formula is intended to help rebuild, reinforce and retain the skin's internal support structure. It's also formulated with Licorice Extract, which Shiseido says helps support the skin's anchoring structure and its natural resistance to gravity.

The serum effectively combines and streamlines the brand's previous LiftDefine Radiance Serum and Night Concentrate into a single day-and-night formula.

Shiseido has confirmed clinical testing showed enhanced firmness, improved brightness and a reduction in the appearance of sagging. In consumer testing, results after one week included a 42% improvement in the appearance of cheek sagging, a 39% improvement in the jawline, and a 43% improvement in the appearance of the corners of the mouth. After four weeks, these figures rose further - cheek sagging improved by 67%, jawline by 68%, and the corners of the mouth by 68%.

Since 1872, Shiseido has built its reputation on combining Japanese aesthetics with advanced cosmetic science, and this latest launch feels like a continuation of that approach rather than a departure from it - grounded in three decades of sagging-specific research rather than a single new ingredient story. Whether the appeal is the science behind the collagen-structure discovery or simply the promise of visible results in a week, it's a serum worth watching as it rolls out nationally this September.