A 1.5mm needle length is the standard professional choice for scar treatment because it offers the precise depth required to penetrate the epidermis and reach the dermal papilla layer. This specific length allows clinicians to trigger the body's repair mechanisms within the dermis without causing unnecessary injury or trauma to the deeper underlying tissues.
By reaching the dermal papilla layer without going deeper, a 1.5mm needle effectively triggers Percutaneous Collagen Induction (PCI) to remodel scar tissue while minimizing recovery time and risk.
Targeting the Correct Skin Layer
To treat scars effectively, therapy must go beyond the surface. The 1.5mm length is calibrated to bypass outer barriers and impact the structural layers of the skin.
Penetrating the Epidermis
The epidermis is the skin's outer protective shield. For scar treatment to be effective, the needle must pass through this layer entirely.
A 1.5mm needle ensures that the treatment does not just scratch the surface but enters the active tissue zones beneath.
Reaching the Dermal Papilla
The primary target for this therapy is the dermal papilla layer, which sits just below the epidermis.
Reaching this specific depth is critical because it is the zone where structural changes can be initiated.
Triggering Percutaneous Collagen Induction
The biological goal of using a 1.5mm needle is to stimulate a process known as Percutaneous Collagen Induction (PCI).
Stimulating the Dermis
When the needle enters the dermis, it creates controlled micro-injuries.
These micro-injuries act as a signal to the body that tissue damage has occurred, instantly activating the wound-healing cascade.
Inducing Collagen Production
In response to the needle penetration, the body begins to produce new collagen and elastin fibers.
This induction of collagen is the core mechanism that remodels the skin structure, smoothing out the appearance of scars over time.
Understanding the Trade-offs of Needle Depth
Selecting the right needle length is a balance between efficacy and safety. A 1.5mm needle represents the "sweet spot" for most scar treatments.
Why Shallower Needles May Fail
Needles shorter than 1.5mm often struggle to reach the dermal papilla effectively.
If the needle creates channels only in the epidermis, it will not trigger the deep Percutaneous Collagen Induction necessary for significant scar remodeling.
The Risk of Going Deeper
While it might seem that deeper is better, extending beyond 1.5mm increases the risk of unnecessary trauma.
Going too deep can damage tissues that do not require treatment, leading to increased pain and longer recovery times without providing additional therapeutic benefit for this specific application.
Making the Right Choice for Your Goal
When evaluating microneedle therapy protocols, understanding the intent behind the needle length is crucial for setting expectations.
- If your primary focus is Efficacy: A 1.5mm length ensures you are physically reaching the dermal layer required to stimulate actual collagen production.
- If your primary focus is Safety: This length prevents the complications associated with deep tissue trauma, keeping the injury controlled and precise.
By selecting a 1.5mm needle, you ensure the treatment is aggressive enough to work, but precise enough to remain safe.
Summary Table:
| Needle Length | Target Skin Layer | Primary Biological Action | Recommended Use |
|---|---|---|---|
| < 1.0mm | Epidermis | Enhances product absorption | General rejuvenation |
| 1.5mm | Dermal Papilla | Percutaneous Collagen Induction (PCI) | Professional scar treatment |
| > 2.0mm | Deep Dermis | Extensive tissue remodeling | Severe fibrosis/deep scars |
| Goal | Precise Depth | Controlled Micro-injury | Safe Recovery |
Elevate Your Clinical Results with BELIS Advanced Microneedling
To achieve the precision required for 1.5mm scar therapy, your clinic needs reliable, professional-grade technology. BELIS specializes in high-performance medical aesthetic equipment tailored for premium salons and clinics. Our advanced Microneedle RF systems and specialized care devices provide the accuracy needed to trigger Percutaneous Collagen Induction safely and effectively.
From cutting-edge Pico and Nd:YAG lasers to HIFU and body sculpting solutions (EMSlim, Cryolipolysis), BELIS empowers practitioners to deliver superior skin remodeling and patient satisfaction.
Ready to upgrade your clinic's capabilities? Contact us today to explore our professional equipment portfolio.
References
- Ummer Yaseen, Aquisa Bashir. Combination of platelet rich plasma and microneedling in the management of atrophic acne scars. DOI: 10.18203/issn.2455-4529.intjresdermatol20173691
This article is also based on technical information from Belislaser Knowledge Base .
Related Products
- RF Microneedling Machine Micro Needle Radio Frequency Machine
- Hydrafacial Machine Facial Clean Face and Skin Care Machine
- Hydrofacial Machine with Facial Skin Analyzer and Skin Tester
- 4D 12D HIFU Machine Device for Skin Tightening
- Pico Picosecond Laser Machine for Tattoo Removal Picosure Pico Laser
People Also Ask
- What is the key physical function of Radiofrequency Microneedling for hyperhidrosis? Achieve Permanent Sweat Reduction
- What is the role of Radiofrequency (RF) devices with PRP for striae distensae? Boost Synergy for Stretch Mark Repair
- What is radiofrequency microneedling? Advanced Skin Rejuvenation & Deep Collagen Remodeling Guide
- How do Microneedle Radiofrequency (RF) devices synergistically improve skin texture and repair scars? Unlock Clear Skin
- Why is the application of saline-soaked gauze and ice packs recommended after microneedling? Optimize Post-Treatment Care
