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March 04, 2026 4 min read
You can get rid of dark spots and pigmentation with an inside-out approach: by using topical whitening creams and also using oral glutathione and antioxidants, to address pigmentation at the source, accelerate the fading process, and prevent new spots from forming.
Dark spots and pigmentation are caused by overactive melanin production — triggered by UV exposure, inflammation (post-acne marks), hormones, and oxidative stress.
Most topical approaches address melanin at the surface, which is why results are often slow and limited. An inside-out approach inhibits melanin production from within the skin.
Pigmentation happens when melanocytes — the cells in your skin responsible for colour — overproduce melanin in a concentrated area. The most common triggers are:
UV exposure — by far the most significant driver, triggering melanin as a protective response to sun damage
Post-inflammatory hyperpigmentation (PIH) — the dark marks left after acne, pimples, or any skin injury heals
Hormonal changes — melasma triggered by pregnancy, contraception, or perimenopause
Oxidative stress — free radical damage from pollution, stress, and poor sleep that activates melanogenesis
Age — cumulative UV damage over decades that causes the classic 'age spots' on cheeks, hands, and décolletage
Topical brightening ingredients — Vitamin C serums, niacinamide, arbutin, AHAs — work at the epidermal surface. They can fade existing pigmentation and slow surface melanin deposition, but they cannot reach the melanocytes in the deeper dermis where melanin is actually produced.
This is why even the best topical routine often produces slow, incomplete results for stubborn pigmentation — and why spots frequently return after stopping treatment.
Inner skincare reaches the dermis. It delivers brightening actives — specifically glutathione — directly to the melanocyte layer via the bloodstream.
Glutathione is your body's master antioxidant, produced naturally in every cell. For skin brightening, its most relevant mechanism is inhibiting tyrosinase — the key enzyme that triggers melanin synthesis. Less tyrosinase activity means less melanin being produced.
Glutathione also shifts melanin production from darker eumelanin toward lighter phaeomelanin, gradually brightening the overall skin tone even in areas that weren't visibly spotted.
Clinical studies on oral glutathione have consistently shown measurable reductions in melanin index scores, improved skin brightness, and visible lightening of localised pigmentation over 8–12 weeks of daily supplementation.
Any attempt to fade dark spots while continuing unprotected UV exposure is fighting a losing battle. UV is the primary trigger for melanin production — every moment of unprotected sun exposure is actively creating new pigmentation even as you work to fade existing spots.
This is why KYOR Outglow includes White Tomato Extract — a clinically studied photoprotective ingredient that helps protect skin cells from UV-induced oxidative damage from within. This isn't a replacement for topical SPF, but it provides a meaningful additional layer of protection at the cellular level — particularly relevant in Singapore's year-round high-UV environment.
Reducing dark spots requires addressing both the cause of melanin production and the skin’s ability to clear existing pigment. A consistent inside-out routine can gradually fade pigmentation and prevent new spots from forming.
Take a daily inner skincare supplement containing antioxidants such as glutathione. Glutathione helps inhibit tyrosinase, the enzyme responsible for melanin production, reducing the formation of new pigmentation at the source.
Apply a broad-spectrum SPF 30+ sunscreen every day. UV exposure is the primary trigger for melanin production, and daily sun protection prevents new spots from forming while existing pigmentation fades.
Photoprotective antioxidants such as White Tomato Extract help protect skin cells from UV-induced oxidative stress. This supports the skin’s natural defence against pigmentation triggers.
Apply topical ingredients such as Vitamin C, niacinamide, or gentle exfoliating acids. These help fade existing pigmentation by accelerating skin renewal and reducing surface melanin accumulation.
Avoid picking or squeezing pimples or skin injuries. This reduces the risk of post-inflammatory hyperpigmentation (PIH), which commonly causes lingering dark marks.
Post-acne marks (PIH): typically begin fading noticeably from weeks 4–6, with significant improvement by 10–12 weeks
Sun-triggered dark spots: visible lightening from weeks 6–10, with more complete fading over 3–6 months
Age spots (cumulative sun damage): the slowest to respond — expect 3–6 months for meaningful improvement
Melasma (hormonal pigmentation): the most complex — inner skincare helps, but often requires dermatologist-guided combination treatment
Vitamin C works at the epidermal surface and is an excellent topical brightener, but it cannot reach the melanocytes in the dermis where melanin is actually produced. If surface-level treatments haven't fully resolved your pigmentation, the problem is likely deeper than topicals can reach. Oral glutathione through inner skincare addresses the dermis directly.
Post-acne marks absolutely respond to treatment — they are not permanent. Glutathione inhibits the melanin response that creates the mark, while collagen peptides accelerate the skin renewal that pushes pigmented cells to the surface and out. Most KYOR customers with PIH report visible fading from 4–8 weeks, with significant improvement by 3 months.
Recurrence almost always traces back to UV exposure. Every time skin is exposed to UV without adequate protection, melanocytes produce more melanin. Permanent pigmentation control requires ongoing photoprotection — both topical SPF and the internal antioxidant protection that inner skincare provides. Treating and protecting simultaneously is what prevents the cycle.
Inner skincare works systemically rather than topically, so the risk of it causing surface congestion is significantly lower than adding a new serum or cream. KYOR Outglow is marine-derived, contains just 0.1g of sugar per sachet, and is free from common irritants. The vast majority of sensitive and acne-prone skin users report no adverse reaction — and many report that their skin becomes noticeably calmer and less reactive over time.