The discoloration on the neck skin is caused by perfume.
Dr. Andrea Rachel, a consultant dermatologist at DermaZeal Clinic in Bangalore, India, emphasizes that while spraying perfume on the neck doesn't always cause pigmentation changes, for some people, certain ingredients in perfumes, such as bergamot, lemon, and grapefruit essential oils containing bergapten and furocoumarins, are photosensitizing agents.
“If applied or sprayed onto the skin and exposed to sunlight, they can cause phytophotodermatitis (photochemical contact dermatitis). This irritates the skin and can lead to a darker discoloration, known as post-inflammatory hyperpigmentation,” says Dr. Andrea Rachel.
Additionally, repeated exposure to certain perfume ingredients such as cinnamate and fragrance blends can sensitize the immune system, leading to redness, rashes, and itching as part of allergic contact dermatitis.
Pigmented contact dermatitis is characterized by brown to black patches on the skin, often caused by cosmetics and perfumes.
Dr. Chinjitha T Davis, a dermatologist at Manipal Goa Hospital (India), shared: “Some ingredients in perfumes, such as alcohol and synthetic fragrances, can irritate the skin or cause allergic reactions. Chronic irritation or inflammation can trigger melanocytes to produce more melanin, leading to darker patches. They can also cause autoimmune skin conditions.”
Prevention methods
Dr. Andrea Rachel suggests spraying perfume and deodorant onto clothing instead of directly onto the skin. She encourages avoiding sun exposure and applying sunscreen to protect the skin from harmful UV rays.
Meanwhile, Dr. Chinjitha T Davis recommends that naturally made deodorants and perfumes may reduce the risk of irritation and photosensitivity because they typically do not contain harmful chemicals and synthetic fragrances. However, it is important to ensure these natural products do not contain any allergens or photosensitizing agents.
To treat the discoloration, Dr. Rachel recommends temporarily discontinuing the use of the perfume that caused the contact dermatitis, and then using a prescribed skin lightening cream to lighten the post-inflammatory hyperpigmentation.
Note
“For people with atopic dermatitis or eczema, the skin barrier is already weakened. Using perfumes or even scented cosmetics can lead to contact dermatitis. It’s best to use completely fragrance-free products,” advises Dr. Rachel.
Dr. Chinjitha T Davis suggests creams containing ingredients such as kojic acid, alpha arbutin, and niacinamide to help lighten hyperpigmented areas. She also warns against applying steroid creams or creams containing hydroquinone without medical advice, as this can lead to localized side effects.
Source: https://laodong.vn/suc-khoe/nuoc-hoa-khien-da-co-sam-mau-bac-si-noi-gi-1384626.ldo
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