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Post-Inflammatory Hyperpigmentation Marks

Definition:   Flat brown to black spots, depending on skin color, that occur as a result of an injury or inflammation. This post-inflammatory hyperpigmentation is due to an overproduction of melanin. Indeed, during inflammation, pro-inflammatory cytokines stimulate the activity of melanocytes. This type of markings is more frequent in mixed to darker skin types.

Internal and external causes:   Acne, atopic dermatitis, psoriasis, aesthetic treatments (dermabrasion, chemical peeling and laser treatment), injury.

How to reduce or eliminate them:   Use treatments containing the following active ingredients: azelaic acid, arbutin acid, niacinamide, vitamin C, chemical exfoliants (AHA, BHA and PHA), retinoids; chemical peels; laser treatment; hydroquinone prescription;

Preventive measures:   Apply a sun protection product daily; limit the time spent in the sun; do not expose yourself to the sun during the most intense hours; wear protective clothing and sun hats as much as possible; do not scratch, squeeze or touch pimples; moisturize your skin daily for optimal healing

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