This is sponsored content from SkinCeuticals written by Cori Ramos, licensed aesthetician and SkinCeuticals educator.

When we think about skin aging, wrinkles often steal the spotlight. However, another change can make us appear older: the loss of firmness and sagging skin.

Over time, the skin’s ability to bounce back and maintain its shape declines, resulting in a softer, less-defined appearance that affects key areas of the face, such as the jawline, cheeks, forehead, and neck. What’s causing this, and more importantly, what can you do about it? Let’s break it down.

• Why does skin lose firmness?

• What does SkinCeuticals A.G.E. Interrupter Ultra Serum do for skin?

• How to use SkinCeuticals A.G.E. Interrupter Ultra Serum

Why does skin lose firmness?

Skin sagging happens when its natural support system starts to weaken. Normally, collagen and elastin keep skin smooth, firm and lifted. As we age, our body’s production of these two proteins slows down and existing fibers become less effective. Add external stressors, such as sun exposure and gravity, and the skin gradually starts to shift downward.

What are the key factors behind sagging facial skin?

Collagen and elastin breakdown: These structural proteins are essential for firm, elastic skin. As their levels decline, skin loses strength and begins to droop.

Gravity: Over time, gravity constantly pulls on the skin, especially in areas where support has weakened. You may feel like your skin is not as taut as it once was.

Environmental stressors: Sun damage, pollution and free radicals accelerate the breakdown of collagen and elastin. This is why it is essential to include a vitamin C antioxidant serum and a broad-spectrum sunscreen in your daily morning routine.

Advanced glycation end products (AGEs): Glycation is a natural process that accelerates visible signs of aging. During the glycation process, excess sugars bind to skin-supporting proteins (like collagen and elastin) and form advanced glycation end products (AGEs). AGEs weaken collagen, leading to wrinkles and laxity.

Rapid weight loss: Significant fat loss can reduce the skin’s natural volume and support, making it harder for skin to stay firm and lifted. For those on GLP-1 medications, these changes can be especially visible.

What are the benefits of SkinCeuticals A.G.E. Interrupter Ultra Serum?

If sagging skin is one of your concerns, SkinCeuticals A.G.E. Interrupter Ultra Serum was designed with you in mind. This double-patented lifting serum is clinically proven to tighten and redefine four key areas visibly: the jawline, cheeks, forehead and neck. It can be used as a standalone treatment in your daily skin care routine or paired with in-office procedures, such as lifting ultrasound treatments for enhanced results.

Key ingredients include:

Flavo-Proxylane technology

• 30% Proxylane™ helps support skin’s integrity to visibly retighten skin.

• 4.6% wild fruit flavonoids, including blueberry, pomegranate and cassia alata extracts, help protect against free radical damage and reduce oxidative stress, which can be linked to advanced glycation end product (AGE) formation.

Lifting boosters

• Rhamnose, a hydrating, anti-aging ingredient, helps boost firmness and elasticity.

• Gentiana lutea root extract helps create a more sculpted look on key facial and neck areas.

In clinical studies, this new lifting serum from SkinCeuticals delivered visible results in all skin tones:

After one use: Skin is hydrated with 82% moisture in one hour, and the skin barrier is strengthened.

In four weeks: Skin is visibly smoother by 19% and more radiant by 14%. In twelve weeks: Four key areas are visibly tightened, including the forehead, cheeks, jawline and neck. Skin is visibly lifted by up to 18%, wrinkles are reduced by up to 16% and smoothness is increased by up to 54%.

SkinCeuticals A.G.E Interrupter Ultra Serum has been shown to complement lifting ultrasound treatments, is suitable for all skin types and is physician-tested with GLP-1 patients.

How to use A.G.E. Interrupter Ultra Serum

A.G.E. Interrupter Ultra Serum fits effortlessly into any skin care routine. The silky, lightweight texture absorbs quickly, leaving skin soft and prepped for the next steps in your regimen.

Apply: Dispense one full dropper into the palm of your hand. Dab gently onto the forehead, cheeks, chin and neck, then blend evenly into the skin.

When to use: For optimal results, apply in the morning and evening.

Pair for best results: In the morning, apply after your SkinCeuticals vitamin C antioxidant serum, follow with the rest of your routine, ending with a broad-spectrum sunscreen. At night, apply after any active ingredients like retinol, and finish with your moisturizer to support your skin overnight.

Pro tip: If using multiple serums, apply them from thinnest to thickest texture to maximize absorption. For a complete approach to advanced glycation defense, pair A.G.E. Interrupter Ultra serum with A.G.E. Advanced Eye and SkinCeuticals A.G.E. Interrupter Advanced face cream.

Sagging facial skin doesn’t have to define your look. With its advanced technology and clinically proven results, SkinCeuticals A.G.E. Interrupter Ultra Serum can help you achieve a firmer, more lifted look from face to neck.

Here on the LovelySkin Blog, we’re breaking down the differences between some of SkinCeuticals' most talked-about products, including SkinCeuticals C E Ferulic vs. Phloretin CF and SkinCeuticals A.G.E. Interrupter Advanced vs. Triple Lipid Restore.