Resurfacing treatments all work the same way: they injure the skin to a controlled depth so it heals with better texture, more even pigment and new collagen. The tool — acid or light — matters less than how deep it goes and how predictably it can be stopped there.

Superficial
Epidermis only. Light flaking, 2–4 days
Medium
Into the upper dermis. Visible peeling over 5–7 days
Ablative laser
Removes tissue layer by layer. Days of healing, weeks of redness
Non-ablative laser
Heats the dermis without removing surface. Settles in 2–4 days

Depth is the decision

Superficial treatment improves dullness, mild texture and some surface pigment, with almost no downtime and no drama. Medium depth reaches the upper dermis and does more for pigmentation and fine lines, at the cost of a week that is visibly a week of peeling.

Deeper again reaches the level where significant collagen remodelling happens — and that is also the level where the risk of scarring and lasting pigment change starts to matter. Deeper is not simply better; it is a trade against downtime and against risk.

Where laser genuinely differs

A peel acts chemically across the whole treated surface. Fractional lasers instead treat microscopic columns and leave untreated skin between them, which is what allows faster healing at a given depth — the surrounding skin does the repairing.

Lasers can also be selective in a way acid cannot: a wavelength can be chosen that is absorbed preferentially by pigment or by blood vessels, which is why redness and broken capillaries are a laser problem rather than a peel problem.

Sun exposure is the part that undoes it

Freshly resurfaced skin is highly vulnerable to ultraviolet light, and exposure at that stage is the single most reliable way to produce the pigmentation the treatment was meant to remove. Broad-spectrum SPF 50 daily for at least a month, and avoidance where possible.

Which has an obvious scheduling consequence: resurfacing and a beach holiday are incompatible, and Istanbul in summer is not a gentle environment for skin in this state.

How many sessions?

Superficial treatments are usually a course — commonly three to six, spaced weeks apart. A single deeper treatment can achieve more in one go, with correspondingly more downtime.

Does it hurt?

Superficial peels are usually described as stinging and warm. Medium peels and ablative laser need topical anaesthetic and sometimes more, and the heat afterwards is often what people remember.

Can I have it if I use retinoids?

Retinoid use changes how skin responds and is usually paused beforehand on instruction. Isotretinoin in particular has specific guidance about waiting periods — tell the practitioner if you have taken it.

What about acne scarring?

Resurfacing helps some scar types more than others. Rolling scars respond reasonably; deep ice-pick scars often need a different technique entirely. An honest assessment names which kind you have.