Dark spots

Dark spots appear where melanin has clustered unevenly in the skin, often after sun exposure, inflammation, or hormonal shifts. The pigment sits in layers, sometimes shallow, sometimes deep. OVESSI addresses them with slow, layered brightening: gentle acids to resurface, kojic and vitamin C to interrupt new pigment, niacinamide to calm the process, and barrier care to prevent post-inflammatory marks from forming in the first place.

What is happening

Dark spots form when melanocytes, the pigment-producing cells in your epidermis, overproduce melanin in response to UV exposure, inflammation, or hormonal signals. That excess melanin accumulates in keratinocytes and sits in visible patches. Post-inflammatory hyperpigmentation, or PIH, follows acne, scratches, or irritation: the skin floods the site with melanin as part of the healing response. Solar lentigines, commonly called sun spots, collect in areas with chronic UV exposure. Melasma, driven by hormones and sun, deposits pigment deeper in the dermis. All three share a common thread: dysregulated melanogenesis. The enzyme tyrosinase converts tyrosine into melanin, and when that pathway runs unchecked, you see uneven tone. Fading requires two actions: inhibiting new melanin production at the enzyme level, and gently lifting the pigmented keratinocytes that already sit at the surface. TEWL, or transepidermal water loss, increases when the barrier is compromised, which can deepen pigmentation during healing. Barrier integrity matters as much as brightening actives.

The OVESSI point of view

We think about dark spots as a layered concern, not a single target. Fading pigment takes patience, and the skin needs support at every step: resurfacing without irritation, brightening without inflammation, and sealing the barrier so new marks do not form while old ones lift. This draws from Korean layered care, where each product has a role and nothing works alone, and from Scandinavian restraint, where we choose actives that work quietly over weeks, not days. We do not promise overnight results. We promise honest, cumulative change. The right ritual inhibits tyrosinase, accelerates cell turnover gently, calms inflammation that can trigger rebound pigmentation, and protects the barrier so healing does not leave new marks. We built a four-step sequence that does all four, with kojic acid as the throughline. It is slower than a peel, kinder than hydroquinone, and it works if you stay with it.

The ritual we built for it

For dark spots, we point to The Glow Ritual as the closest matched four-step set, and we build a targeted brightening cluster around it. First, cleanse with The Polish, a resurfacing exfoliator that combines kojic acid and glycolic acid to lift pigmented cells without stripping. Second, tone to reset pH and prep for actives. Third, treat with The Eraser, a targeted serum that delivers one percent kojic acid and niacinamide directly to spots, inhibiting tyrosinase and calming inflammation. Fourth, seal with The Tone, a kojic-loaded moisturiser that continues the brightening work while reinforcing the barrier with ceramides and squalane. This is not a spot treatment alone. It is a full-face ritual that fades existing pigment, prevents new marks, and keeps the skin calm enough that rebound hyperpigmentation does not undo your progress. Layered, patient, and designed to work together. The ritual does not rush. It accumulates.

The actives that answer it

Kojic acid is the cornerstone: a tyrosinase inhibitor derived from fungi that blocks melanin production without irritation. We layer it across cleanse, treat, and seal. Glycolic acid resurfaces gently, accelerating turnover so pigmented cells shed faster. Niacinamide interrupts melanosome transfer from melanocytes to keratinocytes and calms inflammation that can trigger new pigment. Vitamin C, in stable ascorbic form, brightens by reducing oxidized melanin and scavenging free radicals that drive pigmentation. Together, these four actives work on different parts of the melanogenesis pathway: enzyme inhibition, transfer blockage, oxidation reduction, and accelerated shedding. No single active does it all. The ritual does.

Products on our shelf

The Polish : Resurfacing Kojic Exfoliator lifts pigmented surface cells with kojic and glycolic, used two to three times per week. The Eraser : Targeted Dark Spot Treatment, 1% Kojic is a precision serum for visible spots, layered after toning. The Tone : Kojic Dark Spot Face Cream delivers brightening and barrier care in one step, used daily as your final layer. The Cover : CC Ceramide Stick in 30 Tan offers immediate coverage with SPF 30 and ceramides, so you can protect and conceal while the ritual works underneath. Each product has a role. None works alone.

What to expect, and when

Day zero to day seven: your skin may feel smoother as glycolic lifts dead cells, but pigment will not visibly shift yet. Melanin sits in layers, and fading takes weeks. Day eight to day 21: some spots may start to lighten at the edges, especially shallow post-inflammatory marks. Solar lentigines and melasma take longer. By day 28, most users in our 28-Day Study reported quieter, more even tone, though not complete clearance. Sixty-eight participants, four weeks, daily use. The skin gets quieter. Fading continues past 28 days if you stay consistent. Expect three to four months for deeper pigment. Expect slower results if you skip barrier care or sun protection. New spots form faster than old ones fade if UV exposure continues. This is cumulative work. The ritual does not erase overnight. It interrupts the cycle, lifts what is there, and prevents what would come next.

Common questions

Can I use this ritual on active acne? Yes, but start slowly: kojic and glycolic can sting on open lesions, so apply The Eraser only to healed spots until inflammation clears.

Will my dark spots come back? They can if UV exposure continues or if new inflammation triggers melanogenesis, which is why we built barrier care and sun protection into the ritual.

How is this different from hydroquinone? Kojic acid inhibits tyrosinase without the rebound hyperpigmentation or irritation risk that hydroquinone carries, and it works across all skin tones without contraindications.

Reviewed by

Danny Isaac, Head of Product Development, OVESSI.
Last reviewed: June 2026.

Further reading

A short, curated set of references where the science behind this page is documented in peer-reviewed literature.

1. Klein PA, Kincaid C, Babadjouni A, et al. Isobutylamido Thiazolyl Resorcinol (Thiamidol) for Combatting Hyperpigmentation: A Systematic Review of Clinical Studies. J Drugs Dermatol. 2024;23(11):986-991. PMID: 39496126.
2. Ali L, Al Niaimi F. Pathogenesis of Melasma Explained. Int J Dermatol. 2025;64(7):1201-1212. PMID: 40022484.
3. Frey C, Grimes P, Callender VD, et al. Thiamidol: A Breakthrough Innovation in the Treatment of Hyperpigmentation. J Drugs Dermatol. 2025;24(6):608-616. PMID: 40465503.