Dark spots around the mouth are one of the concerns I hear about most from people with Black and mixed-race skin: a ring that looks darker than the rest of your face, a shadow above the upper lip, mouth corners that turn brown. As a nurse for more than 10 years, I see one thing again and again: this area is thin, constantly in motion, and it reacts quickly to the slightest irritation. Understanding why it darkens is the first step to avoiding the habits that make it worse.

Why the skin around your mouth gets darker

In skin types III to VI, the cells that produce melanin react strongly to any kind of aggression. Even mild inflammation can leave a brown mark that lasts for weeks or months: this is called post-inflammatory hyperpigmentation. Around the mouth, there are plenty of chances for irritation.

The most common causes

Lip licking and saliva: running your tongue over dry lips irritates the skin around them, especially in winter. The area becomes rough, then darker.
Breakouts on the lower face: every pimple, especially one you touch or pop, can leave a mark. I go into detail in my article on dark spots on Black skin.
Upper lip hair removal: waxing, tweezing, threading or shaving can cause redness and small bumps, which then leave a shadow.
Melasma: symmetrical brown patches, often on the upper lip, cheeks or forehead, triggered by sun exposure and hormonal changes (pregnancy, birth control).
Eczema and dermatitis: dry, atopic skin, or a reaction to a scented lip balm, a toothpaste or a lipstick can irritate the area. Perioral dermatitis (small red bumps around the mouth) can also leave marks.
Sun exposure: it darkens existing marks and keeps melasma going.

Less common causes you shouldn't ignore

Less often, pigmentation around the mouth can be linked to certain medications, a deficiency (vitamin B12, for example) or a general health condition. That's why a dark patch that appears for no obvious reason, spreads or comes with other symptoms deserves a medical opinion.

How to tell which type of dark spot you have

I can't diagnose anything from a distance, but a few clues can help you make sense of what you're seeing:

Post-inflammatory mark: it shows up exactly where a pimple, irritation or hair removal happened. It's flat and fades slowly if you leave the area alone.
Melasma: brown patches with irregular edges, often on both sides of the face, that get darker in summer or during pregnancy.
Dry, irritated skin: the skin feels rough and tight, sometimes flakes, and the darker color comes with an ashy look.

If you're unsure, the simplest step is to talk to your doctor or a dermatologist, who can examine the area.

A gentle routine for the skin around your mouth, step by step

The goal isn't to "erase" the dark spot in a few days, but to stop what keeps it going and let your skin recover. On deeper skin tones, patience and a gentle touch really make the difference.

Cleanse gently: use a mild cleanser and lukewarm water, without rubbing. Rinse off any toothpaste residue around your mouth after brushing.
Moisturize morning and night: a simple face moisturizer made for sensitive skin. Well-moisturized skin gets irritated less easily.
Take care of your lips: a fragrance-free lip balm, applied often, helps you break the lip-licking habit.
Use sunscreen every day: a facial sunscreen, even on dark skin, even in winter. It's the most important step if you're prone to dark spots.
Hands off: don't pop pimples or pick at flaky skin. Every irritation can restart the pigmentation.
Rethink hair removal: space out sessions, choose a method your skin tolerates better, and let the area calm down afterward.

If the marks don't fade despite these habits, a dermatologist can suggest options suited to darker skin tones, by prescription and with follow-up. That's the safest route for such a delicate area.

What about the rest of your body?

Areas that darken on the face often darken elsewhere too: elbows, knees, underarms. The approach is the same: regular moisturizing and a gentle touch, as in my body care routine for Black and mixed-race skin. For the body, our body lotions combine glycerin, lactic acid and grape seed oil to keep dry skin comfortable. My tips on keeping dry Black skin moisturized are a great next read.

Mistakes to avoid

Lemon, baking soda or toothpaste on dark spots: these DIY remedies are very irritating and can make pigmentation worse, or even cause burns.
Skin lightening products sold outside regulated channels: some contain unregulated hydroquinone, corticosteroids or mercury. Corticosteroids used on the face can even trigger dermatitis around the mouth.
Frequent scrubbing around the mouth: the skin there is thin. Rubbing to "remove" the spot only creates new irritation. Scrubs are a body care step that needs the right dose: here's how often to exfoliate your body.
Piling on actives: layering acids, serums and masks on already irritated skin only damages it further.
Skipping sun protection: without it, even the best routine won't do much over time.

When to see a doctor or dermatologist

The dark spot appears suddenly, with no pimple or irritation beforehand.
It spreads, changes in appearance, itches, burns or crusts over.
Small red bumps keep coming back around your mouth, especially after using a cortisone cream.
Other areas darken at the same time (skin folds, gums, hands) or you feel unusually tired.
The spot appeared during pregnancy or after a change in birth control and it bothers you.

A professional can look for the cause and suggest care that fits your skin. If you'd like to review your routine, you can also book a skin care consultation with me: it doesn't replace medical advice, but it helps you build habits that suit your skin.

Frequently asked questions

Why is the skin around my mouth darker?

Most often, it's post-inflammatory hyperpigmentation caused by repeated irritation (lip licking, breakouts, hair removal, harsh products), melasma, or very dry skin. If the dark area appears for no clear reason, see a doctor.

How do I get rid of dark spots around my mouth naturally?

There's no miracle natural remedy. The habits that really help are simple: stop the irritation, moisturize, wear sunscreen every day and give it time. Avoid lemon and baking soda, which irritate the skin.

How long does hyperpigmentation around the mouth take to fade?

On Black skin, a post-inflammatory mark can take several months to fade, sometimes longer. It depends on the cause, how deep the pigmentation is and how consistently you protect your skin from the sun.

Can licking your lips darken the skin?

Yes, indirectly: saliva irritates and dries out the skin around your lips, which keeps inflammation going. On darker skin, this repeated irritation can leave a deeper shade. A fragrance-free balm helps you break the habit.

What cream should I use for dark spots around my mouth?

There's no one-size-fits-all cream. A gentle moisturizer and daily sunscreen are the foundation. For spots that won't fade, ask a dermatologist for advice rather than buying a skin lightening product.

The bottom line

Dark spots around the mouth on Black skin mostly come from repeated irritation, melasma or dry skin.
A gentle touch, moisture and daily sun protection are the three pillars.
No lemon, no baking soda, no unregulated skin lightening products.
An unusual dark spot that spreads or comes with other symptoms: see your doctor or a dermatologist.

Written by Aissatou, a nurse for more than 10 years and founder of WITH CARE.