Linerase is a CE-certified Class III medical device composed of sterile, micronized heterologous Type I collagen. It is an injectable biostimulator designed to trigger the body’s natural production of collagen and elastin. By reactivating fibroblast activity within the dermis, it restores skin density, improves texture, and repairs damaged connective tissue.
What Is Linerase? (Medical Definition)
Linerase is a highly purified, bio-active Type I collagen powder that is reconstituted into a liquid form for intradermal injection.
In medical aesthetic terms, it is categorized as a collagen biostimulator rather than a traditional volumizing filler.
The product uses heterologous Type I collagen (HTIC), which mirrors the structural collagen found naturally in human skin to ensure high biocompatibility.
Clinically, it is used to reverse dermal atrophy and improve the structural integrity of the extracellular matrix.
How Linerase Collagen Injection Works
The treatment involves micro-injections of the collagen solution into the mid-to-deep dermis of the target area.
Once injected, it acts as a mechanical trigger for fibroblasts, the primary cells responsible for synthesizing new skin proteins.
Unlike hyaluronic acid skin boosters that focus on hydration, Linerase focuses on biological repair.
It creates a “bio-scaffold” that supports the growth of new, healthy skin fibers over several weeks.
Type I Collagen and Skin Regeneration Role
Type I collagen makes up approximately 80-85% of the collagen in healthy adult skin and is essential for tensile strength.
As we age, our natural production of this protein drops by about 1% every year after the age of 25.
Linerase helps replenish this loss by providing the building blocks necessary for dermal regeneration.
It specifically targets the structural “framework” of the skin to restore firmness that has been lost due to aging or environmental damage.
Skin Problems Treated by Linerase
Fine Lines and Early Wrinkles
Linerase is highly effective at smoothing out “crepey” skin around the eyes, mouth, and neck.
By increasing dermal thickness, it fills in shallow lines from the inside out without changing facial expressions.
It is particularly popular in Malaysia for treating “tech neck” lines caused by constant looking down at devices.
Acne Scars and Skin Texture Damage
The biostimulatory effect helps level out “rolling” and “boxcar” acne scars by filling the depressions with new collagen.
It improves the overall “orange peel” texture of the skin, making pores appear smaller and the surface smoother.
Studies show that collagen biostimulators significantly enhance the outcomes of subcision or laser treatments for deep scarring.
Skin Laxity and Loss of Elasticity
It addresses sagging skin by tightening the dermal layer, especially around the jawline and lower face.
Linerase is also used on the body to treat skin laxity on the abdomen, arms, and above the knees.
The treatment helps “snap back” skin that has become thin or fragile due to sun damage.
Dull and Aging Skin
Increased collagen production leads to better microcirculation, which restores a natural “glow” to sallow skin.
It helps brighten the complexion by improving light reflection on a smoother skin surface.
Patients often report their skin feels “bouncier” and more hydrated after the full treatment course.
How Linerase Works in the Skin
Collagen Stimulation Process
The injected collagen fragments act as a signal to the body that the dermal matrix needs repair.
This triggers a controlled inflammatory response that recruits fibroblasts to the injection site.
These cells then begin producing endogenous collagen (your own natural collagen), which integrates into your tissue.
The process is gradual, ensuring that the rejuvenation looks natural and evolves over time.
Dermal Repair and Remodeling Mechanism
Linerase doesn’t just add volume; it remodels the existing skin architecture.
It breaks down the old, disorganized fibers and replaces them with a fresh, organized network.
This remodeling continues for several months after the final injection, providing a long-tail benefit.
It is particularly effective for “re-densifying” skin that has become thin and translucent.
Long-Term Skin Quality Improvement
The results are cumulative, meaning each session builds upon the last for stronger skin.
Because it stimulates your own biology, the improvements can last between 12 to 18 months.
Regular maintenance sessions help stay ahead of the natural aging process and maintain skin thickness.
It provides a protective effect by strengthening the skin barrier against future environmental stressors.
Linerase Treatment Procedure in Malaysia
Initial Consultation and Skin Assessment
A certified aesthetic physician will examine your skin elasticity, hydration levels, and scar depth.
Doctors in Malaysia typically follow MOH Malaysia guidelines to ensure the treatment is suitable for your specific skin type.
Photos are taken to track progress, and a personalized treatment plan (usually 2-4 sessions) is established.
Injection Technique and Treatment Areas
A topical numbing cream is applied for 20-30 minutes to ensure a comfortable experience.
The doctor uses a very fine needle to perform multiple micro-injections in a grid-like pattern.
Commonly treated areas include the full face, neck, décolletage, hands, and even stretch marks on the body.
Treatment Session Duration
The actual injection process is relatively quick, usually taking between 15 to 30 minutes.
Total clinic time, including numbing and post-care, is typically around 60 minutes.
This makes it a convenient “lunchtime” procedure for busy professionals in KL and Selangor.
Post-Treatment Recovery
There is minimal downtime, and most patients return to work immediately.
Slight redness or tiny bumps at the injection sites are normal and usually disappear within 24 hours.
It is recommended to avoid heavy exercise, saunas, and direct sun exposure for the first 48 hours.
Results and Timeline of Linerase
When Results Start to Show
Initial subtle improvements in skin brightness and hydration can be seen within 7 to 14 days.
However, because collagen takes time to grow, the most noticeable “firming” starts after the second session.
The skin surface begins to feel smoother and more “resilient” to the touch during this early phase.
Collagen Regeneration Over Time
The peak of collagen production typically occurs 3 to 4 months after the initial treatment course.
During this period, fine lines continue to soften, and skin density visibly increases.
The “remodeling” phase can continue for up to 6 months as the new collagen fibers mature.
Number of Sessions Required
For most patients, a standard protocol consists of 3 to 4 sessions spaced 2 weeks apart.
Older patients or those with deep acne scarring may require an extended course of up to 6 sessions.
Maintenance is usually recommended once every 6 or 12 months to preserve the results.
Linerase vs Other Skin Boosters
| Feature | Linerase | Rejuran Healer | Profhilo |
| Main Ingredient | Type I Collagen | Polynucleotides (PN) | Pure Hyaluronic Acid |
| Primary Goal | Skin Redensification | Cell Repair & Healing | Deep Hydration & Lift |
| Best For | Scars & Thin Skin | Sensitive & Damaged Skin | Dullness & Laxity |
| Longevity | 12 – 18 Months | 6 – 9 Months | 6 – 9 Months |
Linerase vs Rejuran Healer
While both are “regenerative,” Linerase focuses on providing the actual collagen structure, whereas polynucleotide treatments focus on cellular repair and DNA synthesis.
Linerase is often preferred for those wanting to specifically target skin “thinness” and deep texture issues.
Rejuran is frequently the choice for inflammatory conditions like rosacea or very sensitive, damaged skin.
Linerase vs Profhilo
Profhilo is a high-concentration HA that flows like a “honey” to hydrate and slightly lift.
Linerase stays more localized to where it is injected, making it better for targeted scar repair and fine line filling.
Many doctors in Malaysia combine both—using Profhilo for “glow” and Linerase for structural “firming.”
Linerase vs Dermal Fillers
Dermal fillers provide immediate volume and change the shape of the face (e.g., higher cheekbones).
Linerase does not add artificial volume or “puffiness”; it only thickens the skin itself.
Fillers are for “sculpting,” while Linerase is for “skin quality.”
Safety Profile and Side Effects of Linerase
Common Temporary Effects (Redness, Swelling)
As with any injectable, mild swelling and redness are the most common reactions.
Occasional small bruises may occur, especially in thin-skinned areas like the neck or under-eyes.
These effects are transient and rarely last longer than 2 to 3 days.
Safety of Collagen Biostimulators
Linerase uses a purified heterologous collagen that has undergone rigorous processing to remove allergenic components.
It is considered very safe with a low risk of granulomas or long-term complications when administered by trained professionals.
The product is fully biodegradable and is naturally broken down by the body over time.
Who Should Avoid Linerase Treatment
Those with a known allergy to porcine or bovine products should consult their doctor first.
It is not recommended for pregnant or breastfeeding women as a standard safety precaution.
Patients with active skin infections or autoimmune diseases in the treatment area should delay the procedure.
Linerase Treatment Cost in Malaysia
Average Price Per Session
In Malaysia, a single session of Linerase typically ranges from RM 1,800 to RM 3,000.
Prices vary depending on the clinic’s location (KLCC and Mont Kiara areas tend to be higher).
Some boutique clinics may charge up to RM 3,500 for a premium experience including post-treatment LED therapy.
Factors Affecting Cost
The total surface area being treated (e.g., face only vs. face, neck, and chest) will impact the price.
The experience level and reputation of the aesthetic physician performing the injections.
Additional treatments used in combination, such as Pico Laser or RF microneedling.
Treatment Packages in Clinics
Most clinics offer “bundle” packages of 3 or 4 sessions, which can save you 10-20% compared to a-la-carte pricing.
Package prices for 3 sessions usually start from RM 5,000 to RM 7,500 in 2026.
Always ensure the package includes the original product and is performed by a licensed professional.
Choosing a Linerase Clinic in Malaysia
Doctor Expertise: Look for a doctor who specializes in biostimulators and has a deep understanding of facial anatomy.
Clinic Standards: Ensure the clinic is LCP-certified (Letter of Credentialing and Privileging) by the Ministry of Health Malaysia.
Authenticity: Don’t be afraid to ask to see the box; genuine Linerase has specific security markings to prevent counterfeiting.
Reviews: Check for “Before and After” photos specifically for texture and scarring to see the doctor’s aesthetic style.
FAQs About Linerase Treatment
How long does Linerase last?
Results typically last between 12 to 18 months after a full course of 3 to 4 sessions. Factors like age, smoking, and sun exposure can affect how long the new collagen remains in the skin.
Is Linerase painful?
Most patients describe the sensation as a “slight pinch.” With the application of a high-quality numbing cream, the procedure is very tolerable.
How many sessions are needed?
For optimal skin rejuvenation, a protocol of 3 to 4 sessions spaced 14 days apart is usually recommended by Malaysian aesthetic doctors.
Is Linerase better than fillers?
It isn’t “better,” but it serves a different purpose. Choose Linerase if you want to improve skin quality and thickness; choose fillers if you want to add volume or change facial contours.
Can Linerase treat acne scars?
Yes, it is one of the most effective injectable treatments for atrophic acne scars because it stimulates the skin to fill in the “holes” with its own natural collagen.