Acne and Scarring

What Are Acne and Acne Scars?

Acne is a chronic skin condition most commonly seen on the face, back, and chest. When breakouts are severe or improperly treated, they can lead to visible scarring—sometimes in the form of indentations (atrophic scars), raised bumps (hypertrophic scars), or skin tone irregularities.

Scars develop when inflammation penetrates deeply, damaging the collagen and tissue structure below the skin’s surface. Even after active acne clears, scarring can remain as a lasting reminder.

What Causes Acne and Scarring?

Several internal and external factors can contribute to both acne development and residual scarring:

• Overactive oil glands – Excess sebum clogs pores and traps debris beneath the skin.
• Bacterial buildup – Acne bacteria (like C. acnes) multiply within clogged follicles, triggering inflammation.
• Hormonal fluctuations – Shifts in hormones during puberty, menstruation, or stress can spike oil production.
• Chronic inflammation – Deep, inflamed lesions are more likely to result in tissue damage and scarring.
• Genetics – Some individuals are more likely to experience persistent acne or post-acne scarring due to their skin type and family history.

Common Acne & Scarring Symptoms

Acne and post-acne scarring can show up in several forms:

• Comedones – Includes blackheads and whiteheads, usually non-inflammatory.
• Papules and pustules – Small red or pus-filled bumps.
• Nodules and cysts – Larger, deeper, and often painful lesions.
• Textural scars – Depressions, pits, or thickened skin caused by past acne.
• Pigmentation changes – Dark spots or red marks left behind even after pimples have healed.

Acne Scar Treatments in Pasadena

Our expert providers at Metropolis Dermatology in Pasadena offer multiple leading-edge treatments to reduce scarring and restore smoother, clearer skin. Each treatment plan is tailored to your skin type, scar type, and overall goals.

RF Microneedling

This treatment combines microneedling with radiofrequency energy to target deeper layers of the skin. It helps rebuild collagen, tighten skin, and reduce the appearance of textural scars.

PRP (Platelet-Rich Plasma)

Using your own blood’s healing components, PRP can be applied topically after microneedling or injected directly into depressed scars to enhance regeneration and support natural tissue remodeling.

Subcision

Ideal for tethered or rolling scars, subcision involves inserting a small needle beneath the scar to break up the fibrous bands pulling the skin downward. This allows the skin to lift and smooth out over time, often in combination with other treatments like PRP or filler.

TCA CROSS

The TCA CROSS (Chemical Reconstruction of Skin Scars) technique involves applying a high concentration of trichloroacetic acid directly into ice pick or deep atrophic scars. This stimulates collagen production within the scar base, gradually improving depth and texture.

Laser Therapy

We offer advanced laser treatments to reduce redness, pigmentation, and uneven texture caused by acne scarring. These lasers help resurface damaged skin and stimulate new cell growth.

Chemical Peels

Chemical exfoliation removes damaged outer layers and boosts skin renewal, which can minimize post-acne discoloration and refine texture.

Advanced Facials & Metropolis Skincare

Medical-grade facials and personalized skincare routines—featuring our own Metropolis product line—support daily cell turnover and prevent future breakouts while gradually improving skin tone and texture.

FAQs

How many acne scar treatments will I need to see results?

Most patients see noticeable improvement after 3 to 4 sessions of RF microneedling, subcision, or chemical peels. The number of sessions depends on the type and severity of your acne scars and your skin’s healing response.

Is RF microneedling painful for acne scar removal?

RF microneedling for acne scars involves minimal discomfort. We apply a topical numbing cream before treatment to ensure a comfortable experience. Most patients describe the sensation as mild heat or pressure.

How soon can I expect to see results from acne scar treatment?

Initial results from acne scar treatments like PRP, microneedling, or laser therapy may appear within 2–3 weeks, with continued improvement over the next few months as collagen production increases.

Can PRP be used for active acne and acne scarring?

Yes. Platelet-Rich Plasma (PRP) can help calm inflammation from active acne and accelerate healing in scarred areas. It’s commonly combined with microneedling or subcision for enhanced results.

What is TCA CROSS, and how does it work for deep acne scars?

TCA CROSS (Trichloroacetic Acid Chemical Reconstruction of Skin Scars) is a targeted acne scar treatment where a high-strength acid is applied directly to deep or ice pick scars. It stimulates collagen remodeling to gradually lift and smooth the skin.

Is subcision effective for all types of acne scars?

Subcision is particularly effective for rolling scars or depressed scars tethered by fibrous tissue. It may be combined with PRP or dermal fillers to improve results and skin texture.

Are acne treatments and acne scar removal safe for all skin tones?

Yes. At Metropolis Dermatology, we customize our acne and acne scar treatments for all skin types and tones. Whether you’re dealing with hyperpigmentation, texture issues, or inflammatory acne, we use safe and effective methods suited to your skin.