Micro-coring is a minimally invasive skin-tightening procedure that physically removes tiny columns of skin using hollow needles, then lets the surrounding skin contract as it heals. The technique is the basis of the Ellacor system, which received FDA clearance in 2021 for treating moderate to severe wrinkles in the mid to lower face. Unlike lasers or radiofrequency devices that heat tissue to stimulate collagen, micro-coring works by actually excising small pieces of excess skin, making it one of the only non-surgical options that reduces skin volume directly.
How Micro-Coring Works
The device uses hollow needles with an inner diameter of about 400 microns (less than half a millimeter) to punch out tiny, full-thickness columns of skin. Each core is immediately suctioned out through the needle. Over a single session, the device removes hundreds or thousands of these micro-columns across the treatment area, and the surrounding skin edges naturally pull together as the tiny wounds close.
The result is a net reduction in skin surface area. Think of it like removing individual threads from a piece of fabric: each removal is imperceptible, but collectively, the material tightens. The wound-healing process also triggers new collagen production in the treated areas, adding a secondary tightening effect over the weeks that follow.
At 400 microns, each core is small enough that the skin heals without visible scarring. Clinical studies in patients with light to medium skin tones (Fitzpatrick types I through IV) showed no evidence of scarring up to 90 days after treatment. A larger review that included skin types up to V found that about 5% of patients experienced temporary focal scarring that resolved with additional treatment, and no patients developed permanent changes in skin color or infection.
How It Differs From Microneedling
The names sound similar, but the mechanisms are fundamentally different. Microneedling uses solid needles to puncture the skin repeatedly, creating tiny channels that trigger a healing response and boost collagen production. No tissue is removed. The skin is displaced, not excised.
Micro-coring uses hollow needles that cut and extract actual cylinders of skin. This means it can physically reduce skin laxity in a way microneedling cannot. Microneedling improves skin texture and fine lines primarily through collagen remodeling, while micro-coring addresses the root problem of having more skin than you need, particularly along the jawline, around the mouth, and in the mid-face where sagging tends to show first.
What the Procedure Feels Like
Micro-coring requires local anesthesia, not just a topical numbing cream. Providers typically start with nerve blocks (similar to what a dentist uses) to numb the perioral area and mid-cheek, then supplement with local anesthetic delivered through a thin cannula to cover the lateral cheeks and any remaining areas. The goal is complete numbness and also hemostasis, since the epinephrine in the anesthetic helps control bleeding during the procedure.
The treatment itself involves the provider pressing the handheld device against the skin in a systematic pattern. The needles penetrate up to 4 millimeters deep, and the operator can adjust both the depth and the percentage of tissue removal (up to 8% of the treated area per session). Procedure-related bleeding and pain are generally described as mild in clinical trials.
Recovery and Downtime
In the pivotal clinical trial, patients reported an average of 3 days of social downtime. During this period, you can expect redness, mild swelling, and pinpoint marks across the treated area. Most side effects resolve within seven days. The tiny extraction sites close on their own without stitches.
About 15% of patients in one study experienced redness or darkening of the skin that lasted beyond four weeks, though these changes were temporary. This is a consideration worth discussing with your provider, especially if you have a darker skin tone, since post-inflammatory hyperpigmentation is more common in higher Fitzpatrick skin types.
Results and Number of Sessions
In a clinical study of 97 treatment sites, 89.7% showed improvement on a standardized assessment scale, and the average wrinkle severity score dropped by 1.3 grades on the Lemperle Wrinkle Severity Scale (a validated tool that rates wrinkles from 0 to 5). Patients reported satisfaction with about 86% of treated sites. When an independent panel reviewed before-and-after photos, they correctly identified the post-treatment images 84% of the time.
Most patients undergo multiple sessions to reach their goals. Because micro-coring removes only a small percentage of skin per visit, the cumulative effect builds over a series of treatments spaced several weeks apart to allow full healing between sessions. The exact number depends on the degree of laxity and the treatment area, but the gradual approach is intentional: it allows the provider to fine-tune results while keeping each session’s impact subtle enough to heal without scarring.
Who It’s Best Suited For
Micro-coring fills a gap between topical treatments and surgery. It’s designed for people with moderate to severe facial wrinkles or mild skin laxity who want visible tightening without the recovery time, risks, or cost of a facelift. The FDA clearance covers the mid to lower face, though some providers are exploring use on other areas like the neck and abdomen.
Dermatologists have found it especially useful for patients who haven’t responded well to other non-surgical options like radiofrequency or ultrasound devices, or who have plateaued after previous treatments. It also offers a potential alternative for people with darker skin tones who may not be good candidates for aggressive laser resurfacing, which carries a higher risk of pigmentation changes in those skin types. That said, darker skin tones do carry a somewhat higher risk of temporary hyperpigmentation even with micro-coring, so the tradeoff should be weighed carefully.