Skin Boosters vs Microneedling: Rejuran, Juvelook, and Sunekos Compared

Bernard Teo • 28 September 2026

Achieving smooth, firm, and healthy skin has evolved far beyond basic topical skincare products. Modern aesthetic medicine now offers advanced, clinical-grade treatments that work beneath the epidermal barrier to stimulate natural collagen production, restore deep hydration, and repair damaged dermal tissue.


Two of the most requested skin rejuvenation modalities at 1Health Wigram are SkinPen Medical Microneedling and Injectable Skin Boosters (such as Rejuran, Juvelook, and Sunekos).


While both modalities aim to reverse early signs of ageing, refine skin texture, and restore vitality, they work through entirely different biological mechanisms. This comprehensive comparison guide explains how each treatment functions, compares the leading injectable skin booster formulations, and helps you determine which option aligns with your skin goals.


Understanding Dermal Ageing: Texture vs Structural Hydration

To understand why different treatments are recommended, it helps to examine how skin ages over time:


  • Surface Textural Degradation: Exposure to UV radiation, environmental pollution, and natural cellular turnover slowdown leads to enlarged pores, fine surface crinkling, uneven pigmentation, and acne scarring.


  • Deep Structural Loss: From our mid-twenties onward, our body's natural production of collagen (which provides skin firmness) and elastin (which provides snap and bounce) drops by approximately 1% per year. Simultaneously, natural Hyaluronic Acid levels deplete, leading to dehydration, loss of elasticity, and thin, crepey skin.


While surface textural concerns respond brilliantly to mechanical collagen induction (microneedling), deep structural dehydration and tissue thinning require active bio-remodelling ingredients delivered directly into the dermis (skin boosters).


What Is SkinPen Medical Microneedling?

SkinPen is an FDA-cleared, medical-grade microneedling device designed for precision collagen induction therapy.


During a SkinPen treatment, microscopic, sterile needles create thousands of controlled micro-injuries in the skin per second. These micro-channels trigger your body’s natural three-stage wound-healing response:


  • Inflammation: The body increases blood flow and initiates tissue clearance.


  • Proliferation: New micro-vessels and collagen fibers (Type III collagen) develop rapidly within the micro-channels.


  • Remodelling: Temporary collagen is replaced with stronger, tighter Type I collagen, smoothing scar tissue, tightening open pores, and refining skin texture.


What Are Injectable Skin Boosters?

Unlike traditional dermal fillers—which are thick, structural gels designed to change facial shape or create localized volume in cheeks and lips—Injectable Skin Boosters are light, fluid micro-injections administered across the face, neck, or hands.


Skin boosters do not change your natural facial contours. Instead, they act as deep dermal feeds, delivering high concentrations of active bio-remodelling ingredients—such as Hyaluronic Acid (HA), Polynucleotides (PN/salmon DNA), or essential Amino Acids—directly into the skin matrix where topical creams cannot penetrate.


Treatment Comparison: Microneedling vs Injectable Skin Boosters


Feature SkinPen Medical Microneedling Injectable Skin Boosters
Primary Clinical Focus Surface texture, acne scarring, open pores Deep hydration, skin elasticity, fine crepiness
Working Mechanism Mechanical collagen induction (wound healing) Micro-injectable bio-remodelling & cellular feeds
Active Ingredients Mechanical stimulation (paired with soothing serums) Hyaluronic Acid, Polynucleotides, Amino Acids
Downtime 24 to 48 hours of mild pink redness 12 to 24 hours of tiny localized bumps
Ideal Candidate Textured skin, surgical scars, enlarged pores Dry, dull, thin, or sun-damaged crepey skin
Optimal Treatment Protocol 3 to 6 sessions spaced 4 to 6 weeks apart 2 to 3 sessions spaced 3 to 4 weeks apart

Comparing Popular Skin Boosters: Rejuran, Juvelook, and Sunekos

If you are exploring injectable skin boosters, understanding the differences between active formulations helps match the right booster to your specific skin needs:


1. Rejuran (Polynucleotides / Salmon DNA Rejuvenation)

Rejuran is composed of bio-compatible Polynucleotide (PN) chain fragments extracted from wild salmon DNA. Salmon DNA is remarkably compatible with human tissue and exhibits potent anti-inflammatory and cellular repair properties.


  • How It Works: Stimulates cellular regeneration, thickens a thin or damaged skin barrier, and calms inflammation.


  • Best Clinical Intent: Compromised skin barriers, persistent redness, dark under-eye circles, acne scar tissue, and sun-damaged skin.


2. Juvelook (Hybrid PDLLA Plus Hyaluronic Acid)

Juvelook is a hybrid skin booster that combines Poly D,L-Lactic Acid (PDLLA) micro-molecules with non-crosslinked Hyaluronic Acid.


  • How It Works: Hyaluronic Acid provides immediate surface hydration and subtle smoothing, while the PDLLA micro-particles gradually stimulate your skin's own natural collagen production over several months.


  • Best Clinical Intent: Fine lines, hollow under-eye crepiness, enlarged pores, and overall loss of skin firmness.

 

3. Sunekos (Essential Amino Acids Plus Hyaluronic Acid)

Sunekos utilizes a patented formulation combining uncrosslinked Hyaluronic Acid with a specific cluster of six essential Amino Acids (the building blocks of proteins).


  • How It Works: Directly fuels the extra-cellular matrix, prompting fibroblasts to generate both new collagen AND new elastin fibers (elastogenesis).



  • Best Clinical Intent: Severe crepiness, delicate under-eye skin, neck rejuvenation, and skin that has lost its natural elasticity.


Aesthetic facial treatment with a practitioner using a handheld device on a reclining client

Can You Combine Microneedling and Skin Boosters?

Yes! In cosmetic medicine, combining complementary modalities often yields superior overall outcomes.

A tailored treatment plan may combine SkinPen microneedling to smooth outer textural roughness and acne scars, alongside targeted skin booster injections to restore deep dermal hydration and skin density. Our clinical team evaluates your skin quality during your initial assessment to advise whether a single or combined approach is most appropriate.


What to Expect During Your Rejuvenation Appointment

At 1Health Wigram, safety, hygienic precision, and natural-looking results are our top priorities:


  • In-Depth Consultation: We assess your skin barrier, review your medical history, and discuss your specific aesthetic goals.
  • Topical Anaesthetic Application: A high-strength topical numbing cream is applied to the treatment area for 20 to 30 minutes to ensure your visit is comfortable.
  • Precise Treatment Delivery: The treatment is delivered using sterile, single-use medical equipment under strict clinical conditions.
  • Post-Treatment Cooling and Aftercare: A soothing biocellulose mask or calming serum is applied, and you are provided with clear written aftercare instructions.


Frequently Asked Questions


Do Skin Booster Injections Hurt?

With the application of topical numbing cream prior to treatment, discomfort is minimal. Skin boosters are administered using ultrafine micro-needles, and most patients describe the sensation as light, quick pinpricks.

 

How Long Until I See Results?

  • Microneedling: Initial skin radiance appears within a week, with collagen remodelling continuing to improve skin texture for 3 to 6 months.
  • Skin Boosters: Hydration improvements are visible within 7 to 14 days, with peak bio-remodelling and firming taking effect after your second or third planned session.


Is There Any Downtime?

Downtime is minimal for both options:


  • SkinPen Microneedling: Your skin will look moderately pink or sunburned for 24 hours. Most patients return to normal daily activities the following day.
  • Skin Boosters: Tiny, localized bumps at the injection sites look like small mosquito bites and typically subside within 12 to 24 hours as the fluid absorbs into the dermis.


Book a Personalised Skin Consultation in Wigram

Take the first step toward healthier, revitalised skin. At 1Health Wigram, we provide ethical, transparent cosmetic advice tailored specifically to your skin type and budget.


  • Book Online: Book Your Skin Assessment Online


  • Call Reception: 03 662 9309


  • Location: 1 Henry Wigram Drive, Wigram, Christchurch 8042 (Free storefront parking directly outside).



Important Cosmetic Medical Disclaimer

Skin boosters and medical microneedling are clinical procedures that carry potential risks, side effects, and individual variation in results. A full medical evaluation by a qualified practitioner is required prior to treatment to confirm clinical suitability. Individual outcomes vary, and no cosmetic result can be guaranteed.

Mandatory Brand Disclaimers and Product Information

In accordance with New Zealand therapeutic advertising compliance guidelines, the following mandatory brand and product disclosures apply:



Rejuran®: Rejuran is a Class III medical device containing Polynucleotides (PN) derived from wild salmon DNA. Treatment involves micro-injections into the dermis and must be administered by a qualified healthcare practitioner. Common temporary side effects include localized redness, minor swelling, bruising, or mild discomfort at the injection sites. Rejuran is a non-surgical cosmetic procedure and is not a substitute for proper skin protection.


Juvelook®: Juvelook is a hybrid aesthetic treatment combining Poly D,L-Lactic Acid (PDLLA) and non-crosslinked Hyaluronic Acid (HA). It is designed for intradermal administration to stimulate endogenous collagen production. Treatment suitability requires a clinical consultation with a registered healthcare professional. Potential risks include transient redness, localized swelling, bruising, tenderness, or minor papule formation at treatment sites.


Sunekos®: Sunekos is an injectable medical aesthetic treatment containing a proprietary combination of Hyaluronic Acid and essential amino acids. It requires clinical administration following an individual medical assessment. Potential side effects include temporary local inflammation, redness, mild swelling, or bruising.


SkinPen® Precision: SkinPen is an FDA-cleared, TGA-registered Class II medical microneedling device used for mechanical collagen induction therapy. It is indicated for the improvement of facial acne scars and skin texture. Treatment carries potential temporary risks including facial erythema (redness), dryness, light flaking, or mild pinpoint bleeding immediately post-treatment.


General Clinical Oversight: All aesthetic injectable and device treatments at 1Health Wigram are prescription-backed medical procedures. Treatments are administered following a face-to-face clinical evaluation with a registered doctor or nurse prescribers to confirm individual suitability, outline potential risks, and secure informed consent.


Have Questions About Your Health?

Our clinicians at 1 Health are here to help — whether it’s GP care, dental, travel vaccines, or facial aesthetics. Book a consultation anytime.


Book Online:

https://www.1health.nz/contact


Call:

03 662 9309


Disclaimer:

This article is for general information only and is not medical advice. Every person’s health situation is different. For personalised guidance or diagnosis, please consult a qualified clinician.

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