SKN.COACH
Pigmentation Guide

Dark Spots & Hyperpigmentation

Hyperpigmentation is one of the most common (and frustrating) skin concerns. This guide helps you understand what type you have, what actually fades spots, and why sunscreen is half the treatment.

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Evidence-based info Realistic timelines Results in 3-6 months

Find your path

Answer a quick question to find the right guide for your pigmentation type.

Question 1 of 1

What best describes your dark spots?

Likely post-inflammatory hyperpigmentation (PIH)

Good news: PIH usually fades on its own, but you can speed it up with vitamin C, azelaic acid, and strict sun protection. Most cases improve in 3-6 months.

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This sounds like melasma

Melasma is hormone-triggered and notoriously stubborn. Sunscreen is critical—even indoor light can darken patches. Treatment often requires prescription ingredients and patience.

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Likely solar lentigines (sun spots)

These are cumulative sun damage. Vitamin C and retinoids help prevent new ones; existing spots may need stronger treatments like chemical peels or laser therapy.

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Let's figure it out together

A skin scan can help identify your pigmentation type and recommend the right approach. Different types respond to different treatments.

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All guides & resources

Everything in this hub, from understanding types to treatment options.

Understanding Pigmentation

Melasma vs PIH: What's the Difference? How to identify your pigmentation type
Soon
How Long Does PIH Take to Fade? Realistic timelines and what affects healing
Soon

Treatments & Ingredients

Vitamin C for Pigmentation Which form to use and how it helps
Soon
Alpha Arbutin vs Azelaic Acid Comparing brightening ingredients
Soon
Sunscreen for Hyperpigmentation Why SPF is half the treatment
Soon

Related Resources

Sunscreen Hub Sun protection is critical for pigmentation
Related
Azelaic Acid Guide A key ingredient for brightening
Related

Starter routine for hyperpigmentation

A simple routine to start fading dark spots safely.

Morning (AM)

  1. 1 Gentle cleanser — no harsh sulfates
  2. 2 Vitamin C serum — 10-20% L-ascorbic acid or stable derivative
  3. 3 Moisturizer — lightweight, non-comedogenic
  4. 4 SPF 30-50 — reapply every 2 hours if outdoors

Evening (PM)

  1. 1 Double cleanse — oil cleanser, then water-based
  2. 2 Azelaic acid 10-20% — or alpha arbutin serum
  3. 3 Moisturizer — hydration supports barrier health
  4. 4 Retinoid (optional) — 2-3x/week once skin tolerates

Ingredients for hyperpigmentation

What helps, what to be careful with, and what to avoid.

Vitamin C ✓

Inhibits tyrosinase (melanin production). Use 10-20% L-ascorbic acid or stable derivatives like ascorbyl glucoside. Best in the morning.

Azelaic Acid ✓

10-20% concentration. Reduces melanin production, anti-inflammatory. Safe for pregnancy. Works on PIH and melasma.

Alpha Arbutin ✓

Gentler tyrosinase inhibitor. 2% concentration works well. Can be combined with vitamin C. Good for sensitive skin.

Niacinamide ✓

5-10% prevents melanin transfer to skin cells. Helps with oiliness too. Gentle, works for all skin types.

Sunscreen ✓

SPF 30+ daily, even indoors. UV exposure darkens existing spots and creates new ones. Non-negotiable for treatment.

Retinoids ⚠

Increase cell turnover to fade spots. Start slowly—irritation can worsen PIH. Not for pregnancy.

Hydroquinone ⚠

Prescription-strength brightener. Effective but requires monitoring. Not for long-term use. Consult a derm.

Chemical peels ⚠

Professional treatments can help. But aggressive peels can worsen pigmentation in darker skin tones. Always consult a professional.

Lemon juice / DIY ✗

Citrus is phototoxic—can cause burns and worsen pigmentation. Never apply lemon, lime, or other citrus to skin.

What not to do

These mistakes can worsen hyperpigmentation or slow your progress.

Skipping sunscreen. Even indoor light (visible light, blue light) can darken melasma. SPF is half the treatment—without it, you're fighting a losing battle.

Expecting overnight results. Pigmentation takes 3-6+ months to fade. Consistency matters more than intensity. Be patient.

Over-exfoliating. Aggressive scrubbing or too many acids damages your barrier, causing inflammation that leads to more pigmentation.

Picking at acne or spots. Trauma to the skin = more inflammation = more PIH. Hands off your face.

Using too many actives at once. Vitamin C, retinoids, AHAs, azelaic acid—don't layer them all. Start with one, add slowly.

DIY remedies. Lemon juice, turmeric paste, baking soda—these can irritate skin, cause burns, and worsen pigmentation.

When to see a dermatologist

Some situations need professional evaluation.

Schedule a consultation if:
  • You suspect melasma—it often requires prescription treatments
  • OTC treatments haven't worked after 3-6 months of consistent use
  • You're interested in professional treatments (peels, lasers)
  • Pigmentation appeared suddenly without clear cause
  • Dark spots are changing shape, color, or texture
  • You have darker skin and want to avoid treatments that could worsen pigmentation

Common questions

Quick answers to frequently asked questions about hyperpigmentation.

What causes hyperpigmentation?
Hyperpigmentation occurs when excess melanin is produced in certain areas. Common causes include sun exposure, hormonal changes (melasma), inflammation from acne or injuries (PIH), and aging. UV exposure worsens all types, which is why sunscreen is critical for treatment.
How long does it take for dark spots to fade?
Timeline varies by type and depth. Superficial PIH can fade in 3-6 months with consistent care. Deeper pigmentation or melasma may take 6-12+ months and often requires maintenance treatment. Sun protection is essential—without it, spots will darken again.
What's the difference between melasma and PIH?
PIH (post-inflammatory hyperpigmentation) follows injury or inflammation like acne, cuts, or burns—it appears as spots where damage occurred. Melasma appears as larger, symmetric patches often on cheeks, forehead, and upper lip, triggered by hormones and sun exposure. Treatment approaches differ.
Does vitamin C help with hyperpigmentation?
Yes. Vitamin C (L-ascorbic acid 10-20% or stable derivatives) inhibits tyrosinase, the enzyme that produces melanin. It also provides antioxidant protection against UV-induced pigmentation. Use in the morning under sunscreen for best results.
Can I use vitamin C and retinol together?
Yes, but not necessarily in the same routine. The common approach: vitamin C in the morning (antioxidant protection), retinoid at night (cell turnover). If your skin tolerates both, you can eventually use them in the same PM routine—apply vitamin C, wait 15 minutes, then retinoid.
Is hydroquinone safe?
Hydroquinone is effective for stubborn pigmentation but should be used under dermatologist supervision. It's not for long-term use (typically 3-6 month cycles) and can cause irritation or paradoxical darkening if misused. OTC strength is 2%; prescription goes higher.
Do I really need sunscreen indoors?
For melasma, yes. Visible light (from windows, screens, indoor lighting) can trigger melasma darkening. For PIH and sun spots, strictly indoor days with minimal window exposure are lower risk, but daily SPF habit is still best practice.
Will pigmentation come back after treatment?
Melasma has a high recurrence rate—it's a chronic condition that requires ongoing management. PIH from a specific injury typically doesn't return once healed. Sun damage spots can be treated, but new ones will form without consistent sun protection.

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Get your personalized routine

A skin scan helps identify your pigmentation type and creates a routine tailored to your skin.

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