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Microneedling / Dermapen Explained
What microneedling is, how Dermapen stimulates collagen, what it treats, downtime, how many sessions are typical, and who should avoid it.

If your skin looks dull, your pores seem more visible than they used to, or old acne scars still catch the light in a way you dislike, microneedling is one of the first treatments you will come across — and one of the most oversold. This guide explains how microneedling and the Dermapen device work, what they realistically improve, what recovery looks like, and who should not have it.
How microneedling works: controlled micro-injury
A Dermapen is a pen-shaped device with very fine needles at its tip. The needles move vertically and rapidly, creating thousands of microscopic channels in the skin. The important word is controlled: the goal is not to damage the skin, but to give it a signal strong enough to switch on repair.
Your skin reads those micro-channels as injury and begins its normal healing cascade. Growth factors are released, fibroblasts become active, and over the following weeks the skin lays down new collagen and elastin. That is why nothing dramatic happens the next morning. Collagen production is slow work, and results build gradually.
In practice, three things happen at once:
- Stimulation: micro-channels trigger the skin's repair pathways.
- Remodeling: new collagen gradually supports the tissue beneath uneven scars.
- Absorption: the temporary channels help serums applied during the session spread more effectively through the skin.
Needle depth is adjusted to the person and the area — more superficially around the eyes, deeper for established acne scars. That setting is a medical decision, not a preference.
What microneedling treats
Microneedling does not replace lost volume and it does not soften expression lines caused by muscle movement. Its job is skin quality. It is most often considered for:
- Acne scars, particularly depressed (atrophic) scars, where the aim is to build support under the surface and soften the unevenness. It is one of the mainstays of acne scar treatment.
- Enlarged-looking pores. Pores do not close, but when the surrounding support tissue is stronger they can appear less noticeable.
- Rough or tired-looking skin texture.
- Fine surface lines that come from declining skin quality rather than muscle movement.
- Some pigmentation and stretch marks, where the effect is modest and usually part of a combined plan.
Microneedling is rarely the whole answer on its own. You can see how it compares with other approaches in our overview of skin rejuvenation methods. What suits your skin can only be decided after an in-person assessment.
The session and recovery
The skin is cleansed and a topical numbing cream is usually applied first. Including the time the cream needs to work, a session typically takes 30 to 60 minutes. Most people describe a tingling, warm sensation rather than sharp pain.
Afterwards, expect redness that looks a little like mild sunburn; it usually fades noticeably within 24 to 48 hours. Slight swelling, tightness and fine flaking over the next few days are normal parts of healing, not complications.
Simple rules that make the first days easier:
- No makeup for the first 24 hours; cleanse gently.
- Pause acids, retinoids and exfoliants for several days.
- Moisturize regularly and protect the area from the sun. Sun protection is not optional here.
- Avoid pools, saunas, hammams and intense exercise for a day or two.
- If flaking occurs, do not pick or peel it.
Visible change usually starts within a few weeks, and because collagen remodeling continues for months, results accumulate across a course. No physician can guarantee a specific outcome; response varies from person to person.
How many sessions are typical
A single session tends to give a short-lived freshness rather than a structural change. The framework used most commonly is a course of around 3 to 6 sessions, spaced roughly 3 to 4 weeks apart. The skin needs time to complete a healing cycle before it is stimulated again.
What shifts the number up or down:
- The type and depth of the problem (surface texture versus deep acne scarring).
- Your age and your skin's capacity to repair.
- Smoking, sun exposure and your everyday skincare habits.
- Any other treatments running alongside it.
After a course, maintenance sessions once or twice a year are often planned. These are averages, not a template; what is right for you is decided at examination.
Who should not have microneedling
Microneedling is low-risk, but it is not for everyone. It is usually postponed, or another approach chosen, when:
- There is active acne, a cold sore (herpes) outbreak, or any skin infection in the area.
- You have a known tendency to keloid or hypertrophic scarring.
- You have a bleeding disorder or take blood-thinning medication.
- You have used isotretinoin recently; a waiting period is generally advised.
- There is an uncontrolled systemic illness, an active autoimmune condition, or a history of cancer in the area.
- You are pregnant or breastfeeding; elective treatments are generally deferred.
- You have recent heavy sun exposure or sunburn.
Deeper skin tones can be treated, but depth and technique are chosen more carefully to reduce the risk of post-inflammatory pigmentation. All of this, including your medications and medical history, is worked through in a first consultation.
If you are traveling to Istanbul for treatment
Plan around the redness, not around the flight. Microneedling works as a course, not as one intensive session squeezed into a short trip, so international patients are usually started in the clinic and given a plan to continue on a return visit or with a physician at home. Dr. Burak Gümüşçü practices non-surgical medical aesthetics in Yeşilköy/Bakırköy, Istanbul.
Frequently asked questions
Does microneedling hurt? With a topical numbing cream applied beforehand, most people describe tingling and light pressure rather than pain. Sensation varies with needle depth and area, and can be more noticeable over the forehead and around the nose. Pain thresholds differ from person to person.
How much downtime should I expect? Redness usually settles substantially within 24 to 48 hours, and many people return to normal routines the next day. If you have an event planned, schedule the session at least a week ahead. The exact timeline depends on the depth used.
Can microneedling be combined with other treatments? It is often planned alongside other skin-quality treatments, but sequence and spacing matter. Which products can be applied in the same session, and how long to leave between treatments, depends on your skin and is decided at examination.
To find out whether microneedling, or a different approach, is the right answer for your skin, you are welcome to book a consultation.
This content is for informational purposes only and does not replace a medical consultation.
