So, How Does Rejuran Works?
If you’ve been looking into skin boosters lately, you’ve likely seen the word Rejuran everywhere. It’s the “it” treatment for that healthy, lit-from-within glow. But unlike traditional facials that just sit on the surface, Rejuran is a biological powerhouse that works deep in your dermis.
Ever wondered how a few tiny injections can transform your skin texture and “erase” years of damage? Let’s break down the science behind the magic.
What Is Rejuran?
At its core, Rejuran treatment is a skin-healing injectable. While many people mistake it for a filler, it doesn’t actually “fill” space or add volume. Instead, it’s a bio-stimulator. It communicates with your skin cells to tell them to fix themselves.
Originally developed in South Korea, it has become a staple in Malaysian aesthetic clinics for its ability to treat everything from large pores to stubborn acne scars.
Key Components of Rejuran
The secret sauce of Rejuran isn’t just one ingredient; it’s a sophisticated biological structure.
Polynucleotides (PN) and Their Role
The star of the show is the Polynucleotide (PN). These are long chains of DNA fragments derived from salmon. Why salmon? Because salmon DNA is highly biocompatible with human skin, meaning your body accepts it readily without an immune reaction.
Polynucleotide (PN) acts like a “scaffold,” providing the building blocks your skin needs to repair its own DNA and structural proteins.
Other Active Ingredients in Rejuran
Depending on the specific variant (like Rejuran Healer, S, or I), it may also contain hydrating elements. Some versions, like Rejuran HB, combine PN with Hyaluronic Acid to give you an immediate hydration boost while the long-term healing begins.
Mechanism of Action of Rejuran
So, what happens once it’s under your skin? It’s a multi-step biological process.
Stimulating Collagen Production
As we age, our collagen levels drop. PN molecules stimulate fibroblasts—the “factory” cells in your skin. This leads to a surge in Type I and Type III collagen, which thickens the skin and smooths out fine lines.
Enhancing Skin Elasticity and Firmness
By rebuilding the extracellular matrix, Rejuran restores the “snap” to your skin. Clinical data often shows a 15–20% improvement in elasticity after a full course.
Promoting Skin Cell Regeneration
Rejuran speeds up the cell turnover cycle. This means fresh, healthy skin cells reach the surface faster, replacing damaged or pigmented ones.
Improving Skin Barrier Function
A weak skin barrier leads to sensitivity and redness. Rejuran strengthens this shield, helping your skin retain moisture and stay protected from pollutants.
Reducing Inflammation and Skin Damage
PN has natural anti-inflammatory properties. This makes it a fantastic option for calming down “angry” skin, such as rosacea or post-laser redness. You can find more about these regenerative properties on NCBI’s research portal.
How Rejuran Repairs Damaged Skin
Healing Acne Scars and Fine Lines
For those with “pitted” acne scars, Rejuran S (the more viscous version) is a game-changer. It fills the “well” of the scar and triggers the skin to grow new tissue, effectively leveling the surface.
Hydration and Skin Texture Improvement
While it’s not a filler, the way it binds water molecules provides deep-level hydration. This “inner moisturising” effect is what creates that smooth, poreless texture.
Anti-Ageing Benefits at the Cellular Level
Rejuran doesn’t just hide ageing; it technically “reverses” the cellular age of the skin. For more on how DNA fragments assist in anti-ageing, check out the Journal of Cosmetic Dermatology.
Timeline: When Results Appear After Rejuran
Immediate vs Long-Term Effects
2–5 Days: Skin feels smoother and oil production begins to balance.
2–4 Weeks: Pores look smaller and fine lines begin to soften.
1–3 Months: This is the “Golden Window” where collagen production peaks.
Number of Sessions for Optimal Results
Most doctors in Malaysia recommend 3 to 4 sessions spaced 3–4 weeks apart. Think of it like going to the gym; one session is nice, but the real transformation happens with consistency.
Why Rejuran Is Different from Other Skin Treatments
Comparison With Fillers, Mesotherapy, and PRP
Unlike Dermal Fillers, Rejuran adds zero volume. Compared to PRP (Vampire Facials), which depends on the quality of your own blood, Rejuran provides a consistent, standardized concentration of healing molecules every time.
Natural vs Synthetic Skin Rejuvenation
Rejuran is often preferred by those seeking a “natural” look. Since the results come from your own skin’s healing, there is no risk of looking “frozen” or over-filled. To see safety profiles and approvals, you can browse MIMS Malaysia.
PAA: Frequently Asked Questions
How does Rejuran actually work? It uses Polynucleotide (PN) to stimulate fibroblast cells, which are responsible for producing collagen and elastin. It essentially “reboots” your skin’s natural healing process.
Is Rejuran the same as Skin Boosters? Not exactly. Most skin boosters use Hyaluronic Acid for hydration. Rejuran uses DNA fragments for repair. However, they are often used together for a “combo” effect.
How long do the effects last? After the initial cycle of 3–4 sessions, the results usually last 6 to 12 months. A single maintenance session every 6 months is usually recommended to keep the glow.
Can I get Rejuran if I have sensitive skin? Yes! Because it is highly biocompatible and anti-inflammatory, it is actually one of the best treatments for people with sensitive or thin skin.
Is there downtime? You will have small “bumps” (papules) for about 24–48 hours. In Malaysia’s humidity, these usually settle quickly.
