Hyperpigmentation & Adverse Reactions to Henna Dye

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Definition

What are hyperpigmentation and
adverse reactions to henna dye?

Hyperpigmentation is a change in skin color caused by excess melanin production or residual pigment following skin irritation or inflammation.
It may result from dermatitis, repeated friction and irritation, UV exposure, and other factors, appearing in shades from brown to gray-brown depending on the location and depth of the pigment.

Repeated contact dermatitis caused by ingredients in henna or hair dye products may lead to broad, dark pigmentation around the eyes and cheeks, across the forehead, or along the hairline. This condition is known as Riehl's melanosis.

Trinity Dermatology Clinic carefully evaluates the cause, skin condition, and depth and distribution of pigmentation before developing a treatment plan tailored to each patient's skin.

Cases

Types and causes can vary.

At Trinity, careful assessment and diagnosis guide
an individualized treatment approach.

Pigmentation repeatedly returns or improves slowly despite melasma treatment
Brown or gray-brown marks remain after dermatitis has resolved
Hyperpigmentation develops in areas exposed to repeated irritation or friction
Pigmentation darkens with itching or redness after using cosmetics or hair dye

Diagnostic Precision

Accurate diagnosis determines
the direction of pigmentation treatment.

With hyperpigmentation and reactions to henna dye, visual examination of the skin surface
alone may not be enough to identify the exact type of pigmentation.
Treatment without a thorough assessment of the skin and pigment characteristics
may increase irritation or cause the pigmentation to darken.

Before treatment, Trinity Dermatology Clinic uses dermoscopy and MARK-VU imaging
to differentiate pigment conditions
and carefully assess pigment distribution and depth as well as the overall skin condition.
These findings guide the treatment method and intensity selected for the skin.

Solution

Customized Combination of
Premium Devices

We carefully select the appropriate premium devices
according to each patient's skin condition.

View All Equipment

Stellar M22

Fotona StarWalker

Sculpio

Clarity II

U-pulse Dual CO2

Matrixell Pro

Trinity System

Customized Treatment
Based on Skin Condition

Treating hyperpigmentation and reactions to henna dye requires attention not only to the pigment,
but also to the damaged skin barrier and underlying inflammation.

Recovery of Sensitive Skin

Soothing and moisturizing care supports recovery of the damaged skin barrier.

Treatment Tailored to Pigment Depth

Pigment in the epidermis and dermis is assessed before selecting a device and intensity suited to the skin.

Inflammation & Further Pigmentation Care

Reducing residual inflammation and sources of irritation helps prevent pigmentation from darkening again after treatment.

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Treatment Point

Key Principles in Treating
Hyperpigmentation & Henna Dye Reactions

POINT
01

Even when it resembles melasma,
the cause of pigmentation may be different.

Hyperpigmentation can result from dermatitis, irritation, friction, UV exposure, and other factors.
Repeated dermatitis caused by henna or hair dye products may leave gray-brown pigmentation around the eyes and cheeks, across the forehead, or along the hairline, leading to Riehl's melanosis.

If the initial itching and redness resolve quickly, the condition may be mistaken for melasma.
Because pigment may remain in deeper layers of the skin, accurate differentiation is important.

POINT
02

A treatment plan should be established
before pigmentation deepens or spreads.

Repeated inflammation and irritation can increase melanin production, causing pigmentation to darken and spread over a wider area.
Even common hyperpigmentation may persist when the underlying cause continues or the skin barrier remains compromised.

Rather than focusing only on pigment removal, the cause, skin condition, and pigment depth should be assessed together.
Starting appropriate treatment at an early stage is important.

TRINITY DERMATOLOGY CLINIC

Confidence that blooms
from healthy skin
Trinity Dermatology Clinic

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