Microneedling

**Microneedling**
A minimally invasive cosmetic procedure that uses **fine, sterile needles** to create controlled micro-injuries in the skin, stimulating collagen, elastin, and growth factor production.

### **Key Features**:
1. **Mechanism**:
– Needles (0.25–2.5mm depth) puncture the epidermis/dermis, triggering natural wound healing.
– Enhances absorption of topical serums (e.g., hyaluronic acid, vitamin C).
2. **Devices**:
– **Manual Rollers** (Dermaroller®): Handheld roller with needles.
– **Automated Pens** (Dermapen®/SkinPen®): Adjustable depth and speed.
– **RF Microneedling** (e.g., Intracel®): Combines radiofrequency for deeper tightening.
3. **Targets**:
– Acne scars, wrinkles, hyperpigmentation, stretch marks, and enlarged pores.
4. **Procedure**:
– Topical numbing → Needling → Serum application.
– 3–6 sessions, 4–6 weeks apart.
5. **Results**:
– Gradual improvement (1–3 months for collagen remodeling).
– Smoother texture, reduced scars, and brighter complexion.
6. **Downtime**:
– 24–48 hours of redness/peeling (deeper treatments may require 3–5 days).

### **FDA-Cleared**:
– **SkinPen®** (first FDA-approved device), **Dermapen4®**, and **Eclipse®** (with PRP).

### **Cautions**:
– Avoid active acne, eczema, or keloid-prone skin.
– Use sterile techniques to prevent infection.

*Example: “RF microneedling combines collagen induction with thermal energy for enhanced skin tightening.”*