Computer Vision Detecting Pigmentation

Today’s advanced skin analysis tools use computer vision—a form of artificial intelligence—to “see” what’s happening on and below the skin’s surface. Tejo can highlight even the faintest areas of hyperpigmentation—including spots you might not see yet with the naked eye.

The software scans for patterns in color, texture, and contrast, comparing them to healthy surrounding skin. This allows it to pinpoint early changes in melanin distribution and measure the size, depth, and intensity of each spot.

Tejo also analyzes overall complexion for Eveness, this looks at the broader skin to see how consistent the color is across the face. The Hyperpigmentation score looks for individual dark spots, where as eveness looks for larger dark or light patches. 

How accurate is it?
Modern computer vision tools can detect pigmentation changes with impressive precision—often identifying early-stage spots before they’re visible in regular light. Tejo is over 90% accurate.

Why it matters for you:
Early detection means you can start gentle, targeted treatments before spots become darker or harder to fade. It also lets you track your progress over weeks or months, so you can see exactly how your skincare routine and professional treatments are working.

Hyperpimentation Formation

Hyperpigmentation is when certain areas of the skin become darker than the surrounding skin due to excess production of melanin—the pigment that gives skin, hair, and eyes their color. It’s not a condition on its own but a symptom caused by various triggers.

Hyperpigmentation forms when your skin’s melanocytes—the specialized cells that produce pigment—are triggered to make extra melanin. Melanin is packaged into tiny structures called melanosomes, which are then transferred to surrounding skin cells (keratinocytes) to give them color.

When the skin experiences a trigger—like inflammation (from acne, cuts, eczema), UV exposure, hormonal changes, or certain chemical irritants—it sends signals (often through inflammatory molecules or hormones like melanocyte-stimulating hormone) that activate the melanocytes. These activated melanocytes produce more melanin than usual, and because melanosomes are distributed unevenly, the affected area appears darker than the surrounding skin.

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Hyperpigmentation formation
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sun and hyperpigmentation

The Sun And Hyperpigmentation

When your skin is exposed to the sun, it goes into protection mode. The UV rays from sunlight can damage skin cells, so your body responds by asking melanocytes—the cells that make pigment—to produce more melanin. This extra pigment acts like a natural shield, helping to protect deeper layers of skin from further damage.

That’s why skin tans after sun exposure. But if melanocytes work overtime or produce pigment unevenly, it can lead to dark spots and uneven tone (hyperpigmentation). This is especially common after acne, in melasma, or with years of regular sun exposure.

The best way to keep skin tone even and healthy is to use daily SPF, wear protective clothing, and treat the skin gently after sun exposure to prevent long-term discoloration and premature aging.

How to Treat & Prevent Dark Spots

Dark spots, uneven tone, and lingering marks after breakouts are often caused by hyperpigmentation. The good news? With the right care, you can fade them and keep new ones from appearing.

Prevention is key:

  • Wear a broad-spectrum sunscreen every single day (yes, even in winter or indoors near windows).
  • Protect your skin with hats or shade when outdoors.
  • Treat breakouts, irritation, or sunburns quickly to avoid inflammation and triggering more pigment.
  • Be gentle—scrubbing too hard or picking at spots can make them darker.

Treatment takes consistency:

  • Professional treatments like facials, chemical peels, gentle resurfacing, or LED light therapy can speed up fading.
  • Brightening skincare ingredients such as vitamin C, niacinamide, and retinol help even out tone over time.
  • Patience is important—pigment fades slowly, so think of it as a long-term investment in your skin’s health.

Our tip: Combine professional treatments with a home care routine tailored to your skin type, and always protect your progress with daily SPF. That’s the secret to smooth, glowing, even-toned skin year-round.