Post-inflammatory hyperpigmentation
WHAT IS Hyperpigmentation?
Post-inflammatory hyperpigmentation is a temporary darkening of skin that has been inflamed or injured. In the photo above, there is very little acne, but several dark spots where acne used to be - that’s hyperpigmentation, and it’s very annoying. It doesn’t itch or hurt, but most people don’t like it on their skin.
WHY DO I have dark spots (hyperpigmentation)?
Hyperpigmentation is more common in darker skin types and is usually dark brown (sometimes almost black). In lighter skin types, it is typically pink or purple. Sun exposure makes the hyperpigmentation even darker. Occasionally, medication may be responsible, but this is not common.
How do I fix hyperpigmentation?
Post-inflammatory hyperpigmentation is hard to treat because the sun is hard to avoid. Sun protection all day is very important (see my pages on sun-protective clothing and sunscreen for skin of color).
BEDTIME ROUTINE:
Rinse your face with a gentle facial cleanser. Then apply a very thin layer of each of the following to your face:
Glycolic acid or kojic acid serum or Mela B3 serum
Adapalene gel (Differin, Effaclar, AcneFree, Taro (cheapest) Neutrogena, ProActiv)
Hydrocortisone ointment (the first two irritate the skin, so hydrocortisone minimizes the irritation)
WARNING: Overuse of topical steroids like hydrocortisone can cause skin thinning, stretch marks, and easy bleeding or bruising.
(Can also add niacinamide serum if you are tolerating the above combination. It would go on right after the acid serum.)
Cover this with a thick layer of Vaseline or CeraVe cream.
MORNING ROUTINE:
Rinse face with gentle facial cleanser (hydrating or foaming)
Apply a thin layer of azelaic acid or Mela B3 serum to your entire face.
Apply a daily facial moisturizer with sunscreen (SPF 30 or more).
Moisturize as needed with CeraVe cream or Vaseline throughout the day.
At bedtime, dab adapalene gel on the outside of your face (forehead, sideburns, chin). Rub it into the skin on the outside of your face first. Then, with the tiny bit left on your fingers, rub it over and around the nose, cheeks, and lips (these areas are more sensitive to peeling and redness).
NOTE: This will dry you out. It dries everyone out! The goal is to minimize the red and flaky skin until your skin gets used to the adapalene after a few weeks.
WARNING: Adapalene gel should not be used if you are pregnant. It is a retinoid and can cause problems for growing babies in the womb.
Right after the adapalene, apply a lot of moisturizing cream or ointment. My favorites are CeraVe cream, Vanicream cream, or Vaseline (#SlugLife). Put a thicker layer on your skin and go to bed shiny. It soaks into your skin while you sleep.
NOTE: It can take months to see results, so stick with it for months! Take a selfie before starting so you can compare results over time. It is hard to see day-to-day changes in the mirror. As a side benefit, adapalene is one of the best anti-aging ingredients.
WHAT IF MY hyperpigmentation ISN’T GETTING BETTER?
The steps above can help most people get their post-inflammatory hyperpigmentation better. Most hyperpigmentation will slowly fade with time. In 2020, the FDA pulled hydroquinone (a bleaching cream) off the market over-the-counter, because overuse can cause permanent dark spots (ochronosis). If over-the-counter options are not working, look for a board-certified dermatologist in your area. They can prescribe prescription creams with hydroquinone or discuss cosmetic procedures. If you are in or near Utah, see one of my excellent colleagues at the University of Utah or me virtually with Honeydew.
DISCLAIMER
The statements expressed and content of this website are not intended to be a substitute for professional medical advice. Readers should seek their own professional counsel for any medical condition or before starting or altering any treatment, exercise, or dietary plan. Please see our full disclaimer here.