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In Korea, Dong-A Pharmaceutical's Melatoning Cream, endorsed by actress Jun Ji Hyun, is gaining attention as a treatment for melasma and hyperpigmentation. This product is not a cosmetic whitening cream but an over-the-counter medication with 2% hydroquinone as its main ingredient, available without a prescription at pharmacies. Melatoning Cream focuses on gradually lightening excessively deposited melanin pigments.
The active ingredient, hydroquinone, works by inhibiting the action of tyrosinase, an enzyme that promotes melanin production, thereby reducing the formation of new pigments and lightening existing ones. The cream is approved for use on various melanin hyperpigmentations, including melasma, freckles, and senile lentigines, and can also help improve brown or black marks left after acne or skin inflammation. Dong-A Pharmaceutical also offers Melanosa Cream with 4% hydroquinone for more severe pigmentation, allowing users to choose based on their skin condition.
Bloggers emphasize the importance of proper application for Melatoning Cream. It should be applied in a small amount, thinly, to the hyperpigmented areas once or twice daily. Since hydroquinone can cause irritation or darken pigmentation when exposed to UV light, nighttime application is highly recommended. If used during the day, thorough UV protection is essential. Bloggers also advise testing a small amount on an inconspicuous area, such as the inner arm, for 24 hours before full application to check for hypersensitivity reactions.
