Dark Spots & Pigmentation: Causes, Treatment & Prevention

Types of Pigmentation on Indian Skin

Not all dark spots are the same, and treatment varies significantly by type. Post-inflammatory hyperpigmentation (PIH) — the most common type — occurs after acne, injuries, burns, or skin irritation. Melanocytes deposit excess melanin in response to inflammation. PIH is temporary but can persist for months or years on Indian skin without treatment.

Melasma — deeper, patch-like pigmentation on the cheeks, forehead, and upper lip — is driven by hormones, UV exposure, and visible light. It is extremely common in Indian women, especially during pregnancy, with oral contraceptive use, or with PCOS. Melasma is the most challenging pigmentation to treat because it has dermal (deep) and epidermal (surface) components.

Sun spots (solar lentigines) — flat brown spots caused by cumulative UV exposure. Common on the forehead, cheeks, and hands after age 30 in India. Periorbital melanosis — dark circles around the eyes — is a separate condition with multiple causes including genetics, thin skin, hyperpigmentation, and allergies.

Clinically Proven Depigmenting Ingredients

The world of skin-brightening products is vast and confusing. Here are the ingredients with genuine clinical evidence for Indian skin:

Vitamin C (L-ascorbic acid 10-20%) — an antioxidant that inhibits tyrosinase (the enzyme that produces melanin) and fades existing pigmentation. Most effective at pH 3.5 or below. Unstable — choose serums in opaque, airless packaging. Use in the morning under sunscreen for best results.

Alpha arbutin (2%) — a gentle, stable derivative of hydroquinone that inhibits melanin production without the irritation. Safe for long-term use. Excellent for PIH and mild melasma.

Tranexamic acid (3-5% topical or 250mg oral) — originally a blood-clotting medication, now one of the most exciting depigmenting agents for melasma. Oral tranexamic acid has shown 50-60% improvement in melasma severity in clinical trials. Topical forms are available without prescription.

Azelaic acid (10-20%) — anti-inflammatory and depigmenting. Safe during pregnancy (unlike most actives). Effective for both acne-related PIH and melasma.

Niacinamide (5%) — reduces melanin transfer from melanocytes to skin cells. Gentle, stable, and pairs well with other actives. A slow-and-steady approach to brightening.

Note: Hydroquinone (2-4%) is the most potent topical depigmenting agent but should only be used under dermatological supervision for limited periods (3-6 months) due to the risk of ochronosis (paradoxical darkening) with prolonged use.

Building a Pigmentation-Fighting Routine

A targeted routine for hyperpigmentation should address both fading existing marks and preventing new ones. Here is a dermatologist-aligned protocol:

Morning: Gentle cleanser, vitamin C serum (10-20%), niacinamide moisturiser, SPF 50 PA++++ sunscreen. The morning is for prevention and antioxidant protection. Sunscreen is non-negotiable — UV and visible light reactivate melanocytes and darken existing pigmentation.

Evening: Double cleanse, treatment step (alternate nights between adapalene/retinoid and alpha arbutin or tranexamic acid serum), barrier-repair moisturiser with ceramides. Retinoids accelerate cell turnover, bringing pigmented cells to the surface faster and promoting even tone.

Weekly: A lactic acid peel (5-10%) once weekly helps exfoliate pigmented surface cells. Avoid glycolic acid at high concentrations on Indian skin — it carries a higher risk of irritation and rebound pigmentation.

Critical rule: If your pigmentation worsens at any point during treatment, stop all actives and return to a basic routine (cleanser, moisturiser, sunscreen) for 2 weeks. Irritation-induced pigmentation is counterproductive.

Professional Treatments and When to See a Dermatologist

For moderate-to-severe pigmentation, in-clinic treatments can accelerate results. Chemical peels — mandelic acid, lactic acid, or modified Jessner peels — are safer for Indian skin than aggressive TCA or deep glycolic peels. They should be performed by a dermatologist experienced with melanin-rich skin.

Laser therapy — specifically Q-switched Nd:YAG and picosecond lasers — can target deep pigmentation. However, laser treatment on Indian skin carries significant risks (post-inflammatory hyperpigmentation, burns, rebound melasma) if performed by inexperienced operators. Never get laser treatment from a salon or spa — only from board-certified dermatologists with experience on Fitzpatrick I-VI skin.

Microneedling with tranexamic acid or vitamin C is a safer alternative to laser for pigmentation on Indian skin. The controlled micro-injuries promote collagen remodelling and enhance product penetration without the thermal damage that triggers rebound pigmentation.

Consult a dermatologist if: your pigmentation is worsening despite treatment, you suspect melasma, the dark spots have irregular borders or colour (to rule out melanoma, though rare in Indian skin), or you want to explore prescription options like oral tranexamic acid or hydroquinone.