CollaJu: Injectable Collagen Regeneration for Natural Skin Repair

At SKNN Clinic, we're selective about the treatments we offer. New doesn't always mean better. Every treatment we introduce must meet three standards: clinically proven results, natural-looking outcomes, and support for long-term skin health—not just temporary fixes.

CollaJu is one of those rare treatments that checks every box.

Launching at SKNN in 2026, CollaJu is a premium injectable atelocollagen treatment from South Korea, designed to restore skin structure, improve firmness, and stimulate your body's natural collagen production from within.

What is CollaJu?

CollaJu is an injectable Type I atelocollagen—a medical-grade treatment used in aesthetic and regenerative dermatology. Unlike traditional dermal fillers that primarily add volume, CollaJu works differently: it replenishes collagen directly within the skin while encouraging your body to produce more over time.

The collagen in CollaJu is highly purified atelocollagen, processed to remove telopeptides—the components most often linked to allergic reactions. This purification makes CollaJu highly biocompatible and structurally similar to human collagen.

In simple terms: CollaJu helps your skin repair itself by restoring what naturally declines with age—healthy, supportive collagen.

How Does CollaJu Work?

CollaJu works through three complementary mechanisms:

1. Immediate Collagen Replenishment

Once injected, the liquid collagen provides instant structural support. You'll notice immediate smoothing of fine lines, softening of wrinkles, and improved skin texture.

2. Natural Collagen Stimulation

CollaJu acts as a biological scaffold, encouraging fibroblasts (your skin's collagen-producing cells) to create new collagen and elastin. This means your skin continues improving gradually after treatment—becoming firmer, more elastic, and better hydrated over time.

3. Skin Regeneration & Integration

Rather than sitting rigidly in the tissue like some fillers, CollaJu integrates naturally into the dermis. This supports ongoing tissue regeneration, improves skin density, and enhances overall skin quality without stiffness or an unnatural feel.

How is CollaJu Different from Traditional Fillers?

CollaJu is for patients who want improvement, not transformation.

Unlike hyaluronic acid fillers, CollaJu:

• Doesn't create sharp projection or contour—it works within the skin, not on top of it

• Feels soft and natural—no stiffness or heaviness

• Avoids the "filled" look—results are subtle and refined

• Focuses on skin quality and structure, not just added volume

This makes it particularly suitable for delicate areas like under the eyes, and for patients seeking natural rejuvenation rather than dramatic change.

What Areas Can Be Treated with CollaJu?

CollaJu is versatile and ideal for areas where skin quality, firmness, or structure has declined:

• Fine to deep wrinkles (smile lines, forehead lines, marionette lines)

• Under-eye hollows and crepey under-eye skin

• Areas of mild to moderate skin laxity

• Dull, dehydrated, or thinning skin

• Any zone requiring structural repair rather than lift or contour

Your SKNN doctor will assess your skin carefully and recommend the most appropriate treatment plan for your individual needs.

Who is CollaJu Best For?

CollaJu is ideal if you:

• Want natural-looking rejuvenation that still looks like you

• Are concerned about fine lines, wrinkles, or loss of firmness

• Prefer skin repair and regeneration over visible volume

• Haven't enjoyed the feel or appearance of traditional fillers

• Are focused on long-term skin health, not just quick fixes

CollaJu can be used alone or as part of a comprehensive collagen-support strategy, depending on your goals.

Safety & Regulatory Standards

CollaJu is a Class IV medical device with regulatory approvals including KFDA (Korea), CE (Europe), and NMPA (China). It's manufactured using a patented purification process designed to ensure safety, consistency, and biocompatibility.

As with all injectable treatments at SKNN, CollaJu is only administered after a thorough consultation and by trained medical professionals.

The SKNN Approach to CollaJu

We don't believe in one-size-fits-all solutions. CollaJu is offered as part of a personalized treatment plan, guided by your skin condition, lifestyle, and long-term goals.

Our approach is always:

✓ No pressure
✓ No unnecessary treatments
✓ No overcorrection

Just honest advice, careful technique, and results that still look like you.

Interested in CollaJu?

If you're curious about injectable collagen regeneration and want to understand whether CollaJu is right for your skin, our team is here to guide you.

Frequently Asked Questions About CollaJu

What is CollaJu?

CollaJu is a premium injectable treatment made with highly purified Type I atelocollagen. It is designed to restore skin structure, improve firmness, and support natural collagen regeneration. Unlike traditional fillers, CollaJu focuses on skin repair and quality rather than visible volume.

Is CollaJu a dermal filler?

No. CollaJu is not a traditional dermal filler. While it provides immediate smoothing, it works primarily by replenishing collagen and stimulating your body to produce new collagen over time. The result is firmer, healthier-looking skin with a very natural finish.

What is atelocollagen?

Atelocollagen is a purified form of collagen where the telopeptides have been removed. These are the components most commonly associated with allergic reactions. This process makes atelocollagen highly biocompatible and similar to human collagen, allowing it to integrate naturally into the skin.

How does CollaJu work in the skin?

CollaJu works in two ways. First, it provides immediate structural support by replenishing collagen in the skin. Second, it acts as a scaffold that stimulates fibroblasts to produce new collagen and elastin, leading to gradual improvements in firmness, elasticity, and hydration.

How is CollaJu different from hyaluronic acid fillers?

Hyaluronic acid fillers are designed to add volume and shape. CollaJu focuses on improving skin structure and quality. It feels softer in the skin, does not create projection, and is ideal for patients who want subtle, natural-looking rejuvenation rather than visible filling.

What areas can be treated with CollaJu?

CollaJu can be used to treat fine to deep wrinkles, smile lines, forehead lines, under-eye hollows, crepey under-eye skin, areas of skin laxity, and dull or thinning skin. Treatment areas are always assessed individually by an SKNN doctor.

Who is CollaJu suitable for?

CollaJu is suitable for individuals who want natural-looking skin rejuvenation, improved firmness, and better skin quality. It is especially popular with patients who prefer repair and regeneration over volume or who have not enjoyed the feel or look of traditional fillers.

Does CollaJu look natural?

Yes. CollaJu is known for delivering very natural results. It integrates smoothly into the skin, feels soft, and does not create a hard, lumpy, or overfilled appearance. The goal is refreshed, healthier-looking skin that still looks like you.

Is CollaJu safe?

CollaJu is a Class IV medical device and is approved by major regulatory bodies including KFDA, CE, and NMPA. It is manufactured using a patented purification process and should only be administered by trained medical professionals following a proper consultation.

How long do results last?

Results vary depending on skin condition, age, and lifestyle. Patients often notice immediate skin smoothing, with continued improvement in firmness and texture over the following weeks as new collagen is produced. Your doctor will advise on maintenance based on your individual needs.

Can CollaJu be combined with other treatments?

Yes. CollaJu can be used alone or combined with other treatments as part of a personalised skin plan. At SKNN Clinic, combinations are only recommended when they genuinely support your skin goals and long-term skin health.