Dark Spots From Sun Damage: What They Are and How Prescription Treatment Clears Them
Dark spots from sun damage are one of the most common skin concerns — and one of the most misunderstood. They're often called "age spots" or "liver spots," which implies they're an inevitable consequence of getting older. They're not. They're a consequence of cumulative UV exposure — which means they're largely preventable, and meaningfully treatable with the right prescription approach.
What sun damage dark spots actually are
Sun damage dark spots — clinically known as solar lentigines — are flat, hyperpigmented areas caused by localised overproduction of melanin in response to UV exposure over time. They appear most commonly on areas with the highest lifetime sun exposure: face, hands, forearms, décolletage, and shoulders.
Unlike freckles, which fade in winter, solar lentigines are permanent without treatment — they don't lighten seasonally because the melanocytes responsible for them have been permanently altered by cumulative UV exposure.
They're not dangerous in themselves, but they can be cosmetically significant and they're worth monitoring — any spot that changes in size, shape, colour, or develops irregular borders should be assessed by a dermatologist in person to rule out atypical lesions.
Why OTC spot treatments underperform
The market for "dark spot correctors" is enormous — vitamin C serums, kojic acid creams, niacinamide brighteners. These ingredients have genuine mechanisms behind them. The problem is concentration.
OTC brightening products work gradually at concentrations that are safe for unsupervised general use. For established solar lentigines — where melanocytes have been permanently upregulated by years of UV damage — these concentrations produce slow, limited improvement.
Prescription-strength actives at clinical concentrations interrupt melanin synthesis more effectively and in combination — accelerating the improvement timeline meaningfully.
Prescription treatment for sun damage dark spots
Prescription retinoid (tretinoin)
The Core Formula provides the foundation. Tretinoin accelerates epidermal cell turnover, shedding pigmented cells faster and improving the penetration of other actives. It also has direct effects on melanin distribution. For sun damage specifically, tretinoin over 3–6 months produces visible improvement in existing spots and prevents new melanin accumulation.
Prescription brightening actives
The Pigment Modulation add-on adds tranexamic acid, azelaic acid, and kojic acid — each working on melanin synthesis through different pathways simultaneously. Where appropriate, hydroquinone provides the most potent depigmenting effect for established sun spots, used in structured cycles under clinician supervision.
Sun protection
Sun damage spots cannot be treated while UV continues to trigger the melanocytes responsible for them. Daily SPF 30+ is non-negotiable — without it, treatment is working against ongoing UV stimulation in real time.
Realistic timeline
Solar lentigines respond well to prescription treatment compared to melasma — they're typically shallower and don't have the same hormonal re-triggering mechanism. Most patients see meaningful improvement within 8–12 weeks of consistent prescription treatment and daily SPF use, with continued improvement through 6 months.
Read more about hyperpigmentation vs melasma to understand how sun damage dark spots differ from hormonal pigmentation and why treatment differs.
The Laevo assessment takes 5 minutes.
Assessment fee applies. Prescription required — not all applicants will be approved. Individual results vary. Any changing or atypical skin lesions should be assessed in person by a dermatologist. This article is for informational purposes only and does not constitute medical advice.
