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Skin Health

Hyperpigmentation Solutions That Actually Work

BLK Wax Bar Esthetics TeamMar 28, 20268 min read

How to fade dark spots on bikini line, underarms and inner thighs.

Post-inflammatory hyperpigmentation (PIH) is the body's overproduction of melanin in response to trauma — every old ingrown, razor bump, or scratched bug bite can leave a mark. The good news: it's reversible with consistency.

The actives that actually fade dark spots

Niacinamide reduces melanin transfer. Azelaic acid blocks the enzyme that produces it. Glycolic acid speeds turnover of pigmented cells. Salicylic acid clears the follicle so new pigment doesn't form. Our Ingrown Hair Serum stacks the first three; the Clarifying Face Serum adds azelaic for facial use.

A realistic timeline

Fresh marks (under 3 months old) fade in 4–8 weeks. Marks older than a year can take 3–6 months. Sunscreen on exposed areas is non-negotiable — UV reactivates the same pigment you're trying to clear.

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