← Back to Blog
Skin Concerns

Dark spots and hyperpigmentation: what actually causes them and how to fade them.

May 2026 · 6 min read · Skin Concerns Guide
Sarelle Hue Anti-Aging Brightening Cream

If you have ever stared in the mirror at a dark mark that refused to fade you are not alone. Dark spots are one of the most common skin concerns for Filipinos. But not all dark spots are the same. They have different causes, different depths, and they respond to different treatments.

What is actually happening in your skin

All dark spots and hyperpigmentation come from one source: excess melanin. Melanin is the pigment that gives your skin its colour. Your skin produces it through a process called melanogenesis, triggered by an enzyme called tyrosinase. When something disrupts your skin a pimple, a sunburn, a hormonal shift tyrosinase goes into overdrive and produces more melanin than your skin needs in that area.

That excess melanin gets deposited in your skin cells and shows up as a dark patch, mark, or spot. The challenge is that once melanin is deposited, it does not disappear on its own quickly. Without the right ingredients actively working to break it down and suppress further production, dark spots can persist for months or even years.

Filipino skin tends to produce melanin more aggressively in response to inflammation and UV exposure than lighter skin tones. This is why we are more prone to post-acne marks and why sun protection is not optional it is essential.

The 4 types of dark spots and why the cause matters

Post-inflammatory hyperpigmentation (PIH)
Cause: Inflammation acne, wounds, rashes
This is the dark mark left behind after a pimple heals. Your skin's inflammatory response triggered excess melanin production at the site. PIH sits closer to the surface of the skin which means it responds well to brightening actives. With the right routine, PIH can fade significantly in 4 to 8 weeks.
Most common in Filipino skin
Sun-induced hyperpigmentation
Cause: Cumulative UV exposure
Years of sun exposure without adequate SPF causes melanin to concentrate unevenly, creating dark patches typically on the cheeks, forehead, and hands. These spots tend to be larger and flatter than PIH. They respond to brightening actives but require longer and more consistent treatment typically 8 to 12 weeks.
Made worse by skipping sunscreen
Melasma
Cause: Hormonal changes pregnancy, birth control, hormonal fluctuations
Melasma appears as larger, often symmetrical patches of darker skin, typically on the cheeks, upper lip, and forehead. It is deeply triggered by hormones and UV exposure, which makes it the most stubborn type of hyperpigmentation to treat. Brightening ingredients help, but melasma often requires additional professional guidance.
Requires patience and consistency
Freckles and birthmarks
Cause: Genetics
Genetically determined pigmentation that darkens with sun exposure. Brightening ingredients can lighten their appearance but will not eliminate them. The most effective approach is to prevent darkening with consistent SPF use.
SPF is your primary tool

The ingredients that actually work

Not all brightening ingredients are created equal. Some work on the surface. Some work at the cellular level. The most effective approach uses a combination that targets melanin production at multiple points.

L-Glutathione the master brightener

Glutathione is the most well-known brightening ingredient in the Philippines and for good reason. Applied topically, it inhibits tyrosinase the enzyme that triggers melanin production at the cellular level. It also shifts melanin production from darker eumelanin to lighter phaeomelanin, gradually brightening overall skin tone. For maximum effect, use it both topically and as a daily oral supplement.

Kojic Acid nature's melanin suppressant

Derived from fungi, Kojic Acid is one of the most studied natural brightening ingredients. It chelates copper ions that tyrosinase needs to function effectively cutting off the enzyme's ability to produce melanin. It is particularly effective on PIH and sun spots. Kojic Acid works synergistically with Glutathione, making both more effective when used together.

Niacinamide (Vitamin B3) the melanin blocker

Niacinamide does something slightly different it does not suppress melanin production but rather blocks the transfer of melanin from the melanocytes (where it is made) to the surrounding skin cells (where it shows up as a dark spot). This makes it a powerful complement to Kojic Acid and Glutathione, attacking the problem at a third point in the pigmentation process.

Vitamin C the antioxidant brightener

Vitamin C neutralizes free radicals from UV damage that would otherwise trigger additional melanin production. It also directly inhibits tyrosinase and works with Glutathione to keep both actives more stable and potent. At 20% concentration, it delivers faster visible brightening than lower-percentage formulas.

The complete dark spot routine

Morning
Vitamin C Serum → Brightening Cream → SPF 50
The Vitamin C and Brightening Cream work together to suppress melanin. The SPF prevents UV from triggering more. This order is non-negotiable.
Evening
Cleanse → Brightening Cream
Nighttime is when skin repairs itself. The brightening actives work undisturbed while you sleep, without UV exposure counteracting their effects.
Daily
Skin Glow Bioactive Glutathione 1 tablet in water
Topical brightening works from the outside. Oral Glutathione works from the inside. Together they address hyperpigmentation at every level.

What to expect an honest timeline

Wk 1 to 2
Adjustment
Skin adapts. Mild tingling from Vitamin C is normal. Hydration improves.
Wk 3 to 4
First changes
Overall brightness improves. Edges of dark spots begin to lighten.
Wk 5 to 6
Visible results
Dark spots noticeably lighter. Skin tone more even. Radiance visible.
Wk 8+
Full results
Maximum brightening from the routine. Melasma may need longer.

⚠️ The single biggest mistake people make is stopping too early. Dark spots did not appear overnight and they will not disappear overnight. If you stop your routine at week 3 because you are not seeing dramatic results, you are quitting right before the breakthrough. Commit to 6 full weeks before evaluating.

The one thing that will undo all of your progress

Skipping sunscreen. Every time your skin is exposed to UV rays without protection, it triggers a fresh wave of melanin production directly in the spots you are trying to fade. You can use every brightening serum and cream available and make zero net progress if you are not wearing SPF 50 every single morning. Sunscreen is not a nice-to-have when you are treating hyperpigmentation. It is as important as the brightening ingredients themselves.

The complete dark spot routine from Sarelle Hue
Dark spots Hyperpigmentation Brightening Filipino skin Kojic Acid Glutathione PIH
Continue reading