Kenneth Byrne: October 2014

Originally published as What Is Post-Inflammatory Hyperpigmentation? from the Mario Badescu Skin Care Blog.

Post-inflammatory hyperpigmentation (PIH) refers to any type of skin discoloration left behind after inflammation (including the inflammation associated with acne). Often referred to as acne marks or macules, this form of hyperpigmentation occurs when inflammation triggers melanin production during the healing process. As blemishes start to clear up, reddish or brown spots take their place.

Although PIH is often (misleadingly) grouped with acne scars, PIH is not acne scarring. Acne scars are permanent fixtures that result from irreparable damage to collagen and skin tissue, leaving behind thicker, raised lumps (called hypertrophic scars) or indents (appearing as keloid or atrophic scars). Acne marks, however, are simply changes in pigmentation. The discoloration is only temporary; these marks naturally fade over time.

How to Prevent PIH

It’s important you know that cystic acne and other under-the-skin bumps are more likely than other types of acne to result in PIH. The deeper and more inflamed the blemish, the more likely it is to leave a mark; such is the natural course of the skin’s healing process.

That said, it’s still possible to prevent acne marks. To start with, leave your pimples alone. Picking at your skin will not only leave it more susceptible to infection and inflammation, but will also increase your chances of causing scarring. Instead, let acne heal naturally with the help of gentle yet effective skin care products.

Start by wearing sunscreen daily. UV rays actually trigger melanin production, so prevent PIH from occurring (or further darkening) with proper sun protection.

Be sure to incorporate regular exfoliation into your skin care regimen. Using Alpha Hydroxy Acids (AHAs) or Beta Hydroxy Acids (BHAs) like fresh fruit extracts or Salicylic Acid (respectively) can actually help speed up the fading process. These chemical exfoliants slough away dulling, discolored buildup and are incredibly efficient at killing two birds with one stone: future breakouts can be prevented by ridding the skin of pore-clogging buildup as cell turnover is encouraged to reveal the newer, pigment-free skin beneath.

#MBSkinTip : No granular scrubs for acne-erupted skin; those might be too abrasive for already sensitive skin. Instead, supplement with a Salicylic Acid facial cleanser to help deep clean pore while fighting existing blemishes.

To brighten, look for serums and other treatments featuring ingredients like Kojic Acid, Licorice Extract, Mulberry Extract, and Vitamin C, all of which are known for their ability to minimize PIH with regular use.

Wondering if a professionally-administered treatment will amp-up your efforts to regain an even complexion? Speak to your aesthetician to see if you are a good candidate for a skin brightening glycolic peel or Vitamin C treatment .

Originally published as What Is Post-Inflammatory Hyperpigmentation? from the Mario Badescu Skin Care Blog.