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Our scientist Defne shares her personal experience with hyperpigmentation, while explaining the science behind this common skin concern & sharing a few standout products that can help.
At 22, dealing with post-acne pigmentation and uneven skin tone has been one of my biggest skincare challenges. As a chemist, I’ve developed a deep interest in the science behind skincare and what works to fade dark marks. Pigmentation, whether caused by sun exposure, inflammation, or breakouts, can be incredibly stubborn. But the good news is, there are ingredients backed by clinical evidence that really do help.
In this article, I’ll explain the science of pigmentation, highlight the most effective ingredients, and share three standout Dermoi-approved products. Real results start with understanding your formulas.
Pigmentation gives skin its natural colour through melanin, a pigment made by melanocytes at the base of the epidermis. Melanin is formed in tiny structures called melanosomes during a process known as melanogenesis, controlled by the enzyme tyrosinase. Once produced, it’s transferred to nearby skin cells to protect DNA from UV damage.
Sometimes, this protective process becomes overstimulated. UV exposure triggers a chain reaction that activates melanocytes to produce more pigment. Similarly, inflammation from acne, eczema, or irritation can increase melanin production, explaining why dark marks linger after breakouts. Hormonal changes, certain medications, and oxidative stress from pollution can further disrupt pigment balance.
The result is hyperpigmentation, resulting in areas of darker skin that appear uneven. Common forms include:
In short, pigmentation is a protective mechanism that becomes unbalanced. Understanding this process explains why targeted ingredients can effectively treat dark spots at their source.
| Ingredients | How It Works | Best For |
|---|---|---|
| Vitamin C (Ascorbic Acid & Derivatives) | Inhibits tyrosinase, the main enzyme in melanin production, and acts as a strong antioxidant that protects against UV- and pollution-induced oxidative stress. Clinically proven to lighten dark spots and even skin tone. | Sun damage, dull skin, and uneven tone. Ideal for brightening and protecting the skin barrier. |
| Niacinamide (Vitamin B3) | Prevents pigment from spreading by reducing melanosome transfer between melanocytes and keratinocytes. Helps fade existing dark spots while soothing inflammation. | Post-inflammatory pigmentation, sensitive or acne-prone skin, and barrier repair routines. |
| Retinoids (Retinol, Retinaldehyde, Retinoic Acid) | Boost cell turnover, helping pigmented cells shed faster. Also regulates tyrosinase expression and improves penetration of other actives. | Stubborn pigmentation, sun spots, and age-related discolouration. |
A powerful yet gentle antioxidant serum formulated with stable, lipid-soluble vitamin C to deliver a brighter, smoother complexion. It provides fast, visible radiance while remaining kind to sensitive skin. Clinically proven to smooth texture, reduce pigmentation, and boost luminosity within 7 days.
A high-performance night treatment that targets uneven tone and pigmentation using 0.5% pure retinol with OmniSome technology for deep, controlled delivery. Within four weeks, the complexion appears noticeably brighter, smoother, and more balanced.
An advanced dual-phase serum designed to tackle all types of hyperpigmentation, including melasma, sun spots, and post-acne marks. Its unique two-pump system, featuring a copper pump and a pearl pump, combines exfoliating and brightening ingredients that work in synergy to reduce excess melanin and support healthy skin renewal.
Copper Pump
Pearl Pump
Pigmentation can be difficult to treat, but a science-led approach truly delivers results. By understanding how melanin forms and targeting it with proven ingredients like vitamin C, retinoids, and niacinamide, it’s possible to achieve a clearer, brighter complexion. Whether your goal is to fade old acne marks or brighten sun damage, consistency and protection with daily SPF are essential. With Dermoi-approved formulas and patience, a clear, radiant complexion is absolutely achievable.
Bento-Lopes L, Cabaço LC, Charneca J, Neto MV, Seabra MC, Barral DC. Melanin’s Journey from Melanocytes to Keratinocytes: Uncovering the Molecular Mechanisms of Melanin Transfer and Processing. International Journal of Molecular Sciences [Internet]. 2023 Jan 1 [cited 2023 Aug 12];24(14):11289. Available from: https://www.mdpi.com/1422-0067/24/14/11289
Wang F, Ma W, Fan D, Hu J, An X, Wang Z. The biochemistry of melanogenesis: an insight into the function and mechanism of melanogenesis-related proteins. Frontiers in Molecular Biosciences. 2024 Aug 20;11.
Lawrence E, Syed HA, Aboud A. Postinflammatory Hyperpigmentation [Internet]. Nih.gov. StatPearls Publishing; 2024. Available from: https://www.ncbi.nlm.nih.gov/books/NBK559150
Sanadi RM, Deshmukh RS. The effect of Vitamin C on melanin pigmentation – A systematic review. Journal of Oral and Maxillofacial Pathology : JOMFP [Internet]. 2020 [cited 2021 Apr 13];24(2):374–82. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7802860/?report=printable
Hakozaki T, Minwalla L, Zhuang J, Chhoa M, Matsubara A, Miyamoto K, et al. The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer. The British Journal of Dermatology [Internet]. 2002 Jul 1;147(1):20–31. Available from: https://www.ncbi.nlm.nih.gov/pubmed/12100180
Topical Retinoids for Pigmented Skin - JDDonline - Journal of Drugs in Dermatology [Internet]. JDDonline - Journal of Drugs in Dermatology. 2022 [cited 2025 Oct 19]. Available from: https://jddonline.com/articles/topical-retinoids-for-pigmented-skin-S1545961611P0483X
