Most people approach skin concerns the same way: they notice something, search for a product, read a few reviews, and buy something that sounds promising. Sometimes it works. More often than not, it works partially or temporarily, and the underlying issue remains. The gap between what people try and what dermatologists actually recommend is wider than most skincare marketing would have you believe.
Here’s what expert guidance looks like for some of the most common skin issues people deal with.
Acne and Post-Acne Marks
Active acne and the marks it leaves behind are two different problems that often get conflated. Treating them requires different approaches at different stages.
For active breakouts, dermatologists consistently recommend ingredients with solid clinical evidence: benzoyl peroxide for its antibacterial action, salicylic acid for clearing congested pores, and retinoids for regulating cell turnover and preventing new breakouts. The instinct to scrub or over-cleanse oily or acne-prone skin is counterproductive. It disrupts the skin barrier and tends to worsen inflammation.
Post-acne marks fall into two categories. Post-inflammatory hyperpigmentation (the flat, dark discolouration left after a spot heals) responds well to niacinamide, azelaic acid, and vitamin C used consistently over several months. Post-inflammatory erythema (the red or pink marks that linger on fairer skin) fades on its own but can be accelerated with azelaic acid or low-strength retinoids. Neither type responds well to being picked at, which deepens the mark and considerably extends the timeline.
Hyperpigmentation and Uneven Skin Tone
Hyperpigmentation is a broad category that includes sun damage, melasma, hormonal pigmentation, and marks left by inflammation. It’s one of the most common skin concerns and one of the most frequently mistreated.
The non-negotiable first step is daily sun protection. Melanin production is triggered and worsened by UV exposure, which means any brightening treatment applied without adequate SPF is working against itself. A broad-spectrum SPF 30 or higher, worn every morning, is not optional when treating pigmentation.
Beyond sun protection, the most evidence-supported topical ingredients are retinoids, vitamin C, niacinamide, azelaic acid, and (under medical supervision) hydroquinone. Melasma in particular can be stubborn and often requires a combination approach over a long treatment period. Expecting visible results within 2 to 4 weeks is unrealistic for most pigmentation concerns.
Scarring
Scar treatment recommendations from dermatologists depend heavily on the type of scar being addressed, which is the first thing an expert will want to establish before suggesting any intervention.
For raised (hypertrophic) scars, silicone gel or sheeting used consistently over several weeks is the most well-supported first-line option. It’s not glamorous, but it has the most reliable evidence base of any at-home treatment. Pressure therapy is sometimes used for larger areas. For scars that aren’t responding, corticosteroid injections soften and flatten the tissue over a series of appointments.
For atrophic scars (the pitted kind left by acne or chickenpox), the underlying tissue deficit means surface-level products have limited effect. Dermatologists typically recommend microneedling, which stimulates collagen production in the dermis, or fractional laser resurfacing for more significant scarring. Dermal fillers can temporarily improve the appearance of deeper pits.
For any type of scar, consistent sun protection is critical. Scar tissue is more vulnerable to UV-induced pigmentation changes than surrounding skin, and an otherwise improving scar can darken significantly with unprotected sun exposure.
Stretch Marks
Stretch marks are scar tissue, structurally speaking, which means they share some of the same treatment logic. They’re also widely overpromised by the cosmetics industry.
In their early stage (red or purple), stretch marks are actively remodelling and more responsive to treatment. Topical retinoids have the most evidence here, used consistently over several months. Microneedling and laser treatments show reasonable results in clinical studies, particularly for early-stage marks.
Mature (silver or white) stretch marks are significantly harder to treat because the tissue has fully remodelled. Improvement is possible but modest. Managing expectations honestly is something dermatologists do that product marketing generally doesn’t.
Dry and Compromised Skin Barrier
Barrier dysfunction underlies many skin complaints, from sensitivity and redness to eczema flares and persistent dehydration. It’s also something that well-intentioned skincare routines frequently make worse through overuse of exfoliants, actives, or products with high fragrance loads.
The expert recommendation here is to simplify. A gentle, non-stripping cleanser, a moisturiser containing ceramides, fatty acids, and humectants like hyaluronic acid or glycerin, and consistent SPF cover most of what a compromised skin barrier needs. Introducing actives should wait until the barrier is stable.
The Common Thread
Across all these concerns, the expert approach shares a few characteristics: it matches the treatment to the specific issue rather than applying a generic fix, sets realistic timelines, and starts with the basics (particularly sun protection) before moving to more targeted interventions. That framework is less exciting than a product promising transformation in four weeks. It also tends to actually work.