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Post Inflammatory Hyperpigmentation: Dark Spots from Acne

What is post inflammatory hyperpigmentation?

You are probably familiar with this because everyone gets it every time their skin heals from a cut or pimple.

It is those dark spots that hang around quite a while after getting a pimple or a scratch.

What is it made of?

It is composed of the overproduction of melanin, which is responsible for the dark color. 

What causes it?

It occurs after a skin injury has tried to heal. 

Post Inflammatory Hyperpigmentation: Dark Spots from Acne

How is it treated?

There are various ways of treating it. 

Chemical peel:

The most commonly used chemical peels for dark spots are glycolic, azelaic, trichloroacetic acid, and resorcinol. It works by removing the dead skin cells, which then reveals the fresher and younger cells underneath.

The dose of the chemical peel to be used and the number of sessions will depend on the size of the dark spot and how well your skin responds to the peel.  


Lasers are another way of lightening marks effectively. It may take more than one session to appreciate a significant difference though. It breaks the pigment into smaller pieces, which will then be metabolized by the body.


If it’s too much to visit the clinic every two to four weeks, having the right skincare might be the only help you’ll need. 

This refers to antioxidants and exfoliants like vitamin c, retinol, azelaic acid, 

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About the Author: Dr. Elli Reyes is a specialist of Aesthetic Medicine from the Philippines. With over four years of specialized training, her aesthetic practice has involved a variety of skin treatments involving Botox, fillers, and the like. As a licensed physician, she has been engaged by multiple clinics and is regularly interviewed by the local media as an expert in the science of the skin. Her research and writings to date have centered on nutrition, functional health, and general beauty.

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