CO2 laser resurfacing is one of the most effective treatments for skin rejuvenation, improving texture, tone, and fine lines. But one common concern, especially for clients with medium to darker skin tones, is how to avoid hyperpigmentation after CO2 laser. According to Dr Stefani Dixon, expert aftercare and preparation play a vital role in reducing risks and ensuring a smooth, even recovery.
CO2 lasers work by ablating the outer layers of the skin, creating a controlled injury that stimulates collagen and skin renewal. While this process delivers impressive results, it also leaves the skin temporarily vulnerable. Without proper care, post-inflammatory hyperpigmentation (PIH) can develop, particularly in those prone to uneven pigment or with recent sun exposure.
Dr Stefani notes that “any trauma to the skin, even when intentional and therapeutic like CO2 laser, can trigger excess melanin production if the skin isn’t properly protected during the healing process.”
So, how to avoid hyperpigmentation after CO2 laser? According to Dr Stefani, it starts before the treatment even begins. She advises patients to stay out of the sun for at least two weeks prior and to avoid active skincare ingredients like retinoids or acids during that time.
Post-treatment, the focus shifts to barrier repair and UV protection. Gentle, fragrance-free creams that support healing are essential. Harsh exfoliants or makeup should be avoided until the skin has fully re-epithelialised. Most importantly, high-SPF mineral sunscreen should be worn daily, even indoors.
She adds, “Sunscreen is non-negotiable. And I often recommend using physical hats or visors for added protection if patients are commuting or exposed to daylight.”
While CO2 laser carries a higher risk of pigmentation in some skin types, this can be minimised by working with an experienced practitioner who understands how to tailor the settings to your skin. Lower energy levels, increased spacing between pulses, and staged treatments can all reduce the likelihood of complications.
Dr Stefani emphasises that no result is worth the risk of long-term discolouration, which is why preparation, patience, and proper recovery care are essential to any successful laser journey.
Post-inflammatory hyperpigmentation can occur after CO2 laser, especially in skin types prone to pigment changes. In many cases, this pigmentation fades over time with proper aftercare, sun protection, and possibly the use of brightening agents. However, the duration can vary, fading may take several weeks to months. In some cases, additional treatments may be needed to restore an even skin tone.
Preventing hyperpigmentation starts before treatment. Avoid sun exposure and strong active skincare for at least two weeks prior. After treatment, focus on protecting the skin barrier, avoiding heat or friction, and wearing high-SPF mineral sunscreen daily. According to clinical advice, products that support skin healing, not irritation, are key. If you're prone to pigmentation, your practitioner may also recommend pigment-suppressing agents.
Speeding up recovery after CO2 laser involves gentle, consistent aftercare. Keep the skin clean, well-moisturised, and protected from UV light at all times. Avoid makeup, exfoliation, or active ingredients until full re-epithelialisation has occurred. Using cold compresses, calming barrier creams, and sleeping with your head elevated can also help reduce swelling and speed healing. The skin should never be picked or scrubbed during recovery.
