What causes acne scars
When a pore becomes inflamed, the body responds by breaking down damaged tissue and laying new collagen to repair it. If too little collagen is produced, the skin heals with a depression. If too much is produced, it heals raised. The type of scar you have tells us how the skin repaired itself, and that determines the treatment.
- Rolling scars are broad, shallow, wave-like depressions caused by fibrous bands pulling the skin downward from beneath. They soften when the skin is stretched, and respond well to collagen induction.
- Boxcar scars are wider depressions with defined edges, often on the cheeks and temples. Shallow boxcars improve with resurfacing and microneedling; deeper ones benefit from filler support.
- Ice-pick scars are narrow, deep pits that go well into the dermis. They are the most stubborn and usually need combination treatment; we will be honest about how much improvement is realistic.
- Post-inflammatory marks are flat red (erythema) or brown (hyperpigmentation) spots left after a breakout. These are not true scars and often fade with time, peels and sun protection.
Picking, delayed treatment of active acne, genetics and sun exposure all worsen scarring. Arizona sun in particular darkens post-inflammatory marks and makes textural scars cast harder shadows.
How we assess acne scarring
Jessica Lee, MSN, FNP-C, examines your skin under angled light, which reveals texture that flat lighting hides, and stretches the skin to distinguish tethered rolling scars from boxcar or ice-pick scars. She maps the type, depth and distribution of scarring, notes whether acne is still active, evaluates your skin tone for pigment risk and reviews your history with retinoids, isotretinoin and prior procedures. Recent isotretinoin use, for example, may change the timing of treatment.
We take baseline photographs so progress can be judged objectively rather than by memory. Scar improvement is gradual and easy to underestimate without a reference.
Treatment options for acne scars
| Treatment | Best for | Sessions | Onset | Downtime |
|---|---|---|---|---|
| SkinPen microneedling | Rolling scars, shallow boxcars, overall texture and pore size | 3–6, 4–6 weeks apart | Progressive over the series; continues for months | 1–3 days of pinkness |
| VI Peel | Red and brown post-acne marks, surface texture, active acne | Series of 2–4, about 4 weeks apart | Visible after peeling, ~1 week | 3–7 days of peeling |
| Dermal filler | Individual deep boxcar or rolling scars; overall cheek volume that deepens shadows | 1, refreshed 9–18 months | Immediate | Mild swelling or bruising |
SkinPen microneedling is the foundation of most acne scar plans. Thousands of controlled micro-channels trigger the skin to produce new collagen and elastin and to remodel the fibrous bands that tether rolling scars. Because it uses no heat or light, it is appropriate for every skin tone, and each session takes about an hour with minimal recovery. Learn how SkinPen microneedling works and what a series looks like.
VI Peel works on the surface. A medical-grade blend of acids resurfaces the top layers, fading the red and brown marks that make scarring look worse than it is and smoothing fine texture. It also helps calm active breakouts, so it often comes first when acne is still present. Read about the VI Peel.
Filler is for the scars that are simply too deep to lift with collagen induction alone. A small amount of hyaluronic acid placed beneath an individual boxcar or rolling scar raises its floor level with the surrounding skin, and the result is immediate. Where cheek volume loss is deepening the shadows across scarred skin, a modest amount of dermal filler in the cheek can make the whole area read smoother.
What to expect and a realistic timeline
- Consultation and photos. Scar mapping, skin-tone assessment and a written plan with pricing. If acne is active, we address that first.
- Months 1–2. VI Peel if pigment or breakouts are prominent, or the first microneedling session. Skin is prepared with medical-grade skincare and daily SPF.
- Months 2–6. Microneedling every four to six weeks. Texture gradually smooths; collagen continues to build for months after each session.
- After the series. We review photographs together. Deep individual scars that remain are candidates for filler.
- Maintenance. One to two microneedling sessions a year and consistent sun protection preserve the improvement.
Honest expectations
Acne scarring is one of the more emotionally weighted concerns we see in our Scottsdale studio, and it is also one where over-promising is common. Our approach is conservative: build collagen with your own tissue, resurface where it helps, support deep scars where needed, and measure progress with photographs. Most patients achieve skin that is noticeably smoother in natural light and easier to live in without makeup. That, rather than perfection, is the goal we set together.