The Science Behind Microneedling
- The Mbar Medspa
- Apr 13
- 1 min read
Microneedling, also known as collagen induction therapy, is a minimally invasive skincare treatment that uses tiny needles to create controlled micro-injuries in the skin. These micro-injuries stimulate the body's natural wound healing process, leading to increased collagen and elastin production—two key proteins that help keep skin firm, smooth, and youthful. Here's a breakdown of the science behind it:
1. Controlled Micro-Injury
The skin is punctured with fine needles (usually 0.5 mm to 2.5 mm long).
These tiny wounds don’t cause actual damage to the outer skin layer (epidermis) but do trigger the body's healing response.
2. Wound Healing Cascade
The body responds in three phases:
1. Inflammation (Immediate)
Platelets and white blood cells rush to the area.
Growth factors like PDGF, TGF-β, and VEGF are released.
These help start the repair process.
2. Proliferation (Days 2–7)
Fibroblasts are activated and begin producing new collagen and elastin.
New capillaries form (angiogenesis), which increases blood flow and nutrients to the area.
3. Remodeling (Weeks–Months)
The newly formed collagen is reorganized and strengthened.
The skin texture becomes smoother, tighter, and more even.
3. Microneedling Benefits Backed by Science
Microneedling has shown effectiveness in:
Reducing fine lines and wrinkles
Minimizing acne scars and stretch marks
Improving skin texture and tone
Reducing hyperpigmentation and melasma
Enhancing product absorption (serums can penetrate deeper post-treatment)
Devices Used
Dermarollers: Manual, with a roller head covered in needles.
Microneedling pens: Motorized, offer more precise control.
RF Microneedling: Adds radio frequency energy to enhance results by heating deeper layers of skin.
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