Laser treatment for acne scarring: How it works and what results to expect
Acne scars can persist long after active breakouts have cleared, often affecting self-esteem and skin texture. Laser treatment is a widely used and effective option for improving the appearance of acne scars. Various laser technologies can help resurface the skin, stimulate collagen production and restore a smoother, more even complexion.
How does laser treatment for acne scarring work?
Laser treatment works by using focused beams of light to target scarred skin tissue. It stimulates the body’s natural healing response, promoting the formation of new, healthy skin. There are two main types of lasers used in acne scar treatment:
- Ablative lasers: These lasers, such as CO₂ or erbium lasers, remove the top layer of skin and heat deeper layers to trigger collagen production. They are suitable for deeper or more prominent scars.
- Non-ablative lasers: These lasers, such as fractional lasers or Nd:YAG, work below the surface of the skin without removing the top layer. They are gentler and involve shorter recovery times but may require more sessions.
Your dermatologist will choose the most appropriate type based on your skin type, the severity of the scarring and your treatment goals.
What are the benefits of laser treatment for acne scarring?
Laser treatment offers several benefits for suitable patients:
- Reduction in scar depth and visibility
- Improved skin texture and tone
- Stimulation of natural collagen production
- Minimal damage to surrounding tissue
- Customisable treatment options
- Non-surgical and low-risk when performed by a qualified professional
Laser treatment is particularly effective for atrophic scars (indented or pitted scars), but may also help with discolouration associated with acne scarring.
What can I expect from the procedure, both before and after?
Laser treatments are usually performed in a clinic setting and do not require a hospital stay. Before treatment begins, your skin will be cleaned and a numbing cream may be applied to minimise discomfort. The session may last between 30 and 90 minutes, depending on the area being treated.
After treatment, some redness, swelling or sensitivity is expected and usually resolves within a few days. For ablative treatments, downtime may be longer and you may need to follow specific skincare instructions to promote healing. Multiple sessions, typically spaced a few weeks apart, may be recommended to achieve the best results.
How soon will you see results?
Results from laser treatment are not immediate, as collagen remodelling and skin regeneration take time. Most patients notice gradual improvement over several weeks, with full results often visible after three to six months. The outcome depends on the type and severity of the scarring, the laser used and the body’s individual healing response.
When to consult a dermatologist
A consultation with a dermatologist or skin specialist is essential to assess your skin type, discuss your concerns and determine whether laser therapy is the most suitable option. In some cases, laser treatment may be combined with other approaches such as microneedling, chemical peels or dermal fillers for optimal results.