Pigmentation Around the Mouth: Causes and What Helps

Darkening of the skin around the mouth, called perioral pigmentation or perioral hyperpigmentation, is common in Indian skin and usually comes from one of a few causes: a familial facial pigmentation pattern, melasma, dark marks left after irritation such as lip licking or reactions to toothpaste and lip products, perioral dermatitis, or acanthosis nigricans linked to insulin resistance. The right treatment depends on the cause, so a correct diagnosis matters more than any single cream.

Many people in India notice a dark ring or shadow around the mouth, darkness on the upper lip, or a darker chin, and try lemon, besan, scrubs or bleaching creams. This guide explains the common causes and what is safe to do.

What is perioral pigmentation?

Perioral means around the mouth. Perioral pigmentation is darkening of the skin on the upper lip, the corners of the mouth, the chin, or in a ring around the lips. It may be light brown, dark brown or greyish.

A study in the Indian Journal of Dermatology looked at acquired, patterned facial pigmentation in Indian patients. In the perioral pattern, the darkening involved the area above the upper lip and the chin, roughly bounded by the smile lines, while the lips themselves were spared. This pattern:

• Started relatively early, at an average age of about 22 years
• Had a positive family history in 36% of cases, higher than other facial patterns
• Was often seen together with darkness around the eyes

This kind of pigmentation is not caused by poor hygiene, and it is not a disease, but it can affect confidence.

What causes dark skin around the mouth?

Cause	Typical clues
Familial patterned pigmentation	Starts young, often with dark circles, may run in the family
Melasma	Symmetrical brown patches on the upper lip, cheeks or forehead, worse with sun, pregnancy or hormones
Post inflammatory hyperpigmentation	Dark marks after irritation, rash, acne, waxing or threading
Lip licking and irritant dermatitis	Dry, rough ring around the lips, worse in winter
Allergic contact dermatitis	Itchy rash after a toothpaste, lipstick, lip balm or mouthwash
Perioral dermatitis	Small red bumps around the mouth, often after steroid creams, leaving dark marks
Acanthosis nigricans	Velvety darkening, often also on the neck and underarms, linked to insulin resistance or weight gain
Medicines or other conditions	Less common. A doctor may ask about medicines and general health

Melasma

DermNet describes melasma as brown patches on the face, more common in women and in people with brown skin, triggered by sun exposure, hormones such as pregnancy or the contraceptive pill, and genetic factors. The upper lip is a common site. See our full guide on melasma treatment for Indian skin.

Dark marks after irritation

DermNet explains that post inflammatory hyperpigmentation is darkening that follows any inflammation or injury to the skin, and that it is more common and longer lasting in darker skin. Around the mouth, common sources of irritation include:

• Lip licking, especially in dry winter weather and in children
• Waxing, threading or bleaching of upper lip hair
• Toothpaste, mouthwash, lipsticks, lip balms and lip tints, which can cause irritant or allergic contact dermatitis, as the NHS describes
• Drooling at night or wiping the mouth often
• Acne around the mouth and chin

Read more about dark spots after inflammation.

Perioral dermatitis

DermNet describes perioral (periorificial) dermatitis as small red bumps around the mouth, nose or eyes, usually in women aged about 20 to 45 but also in children. Topical steroids are a well known trigger. It can leave dark marks in brown skin. DermNet recommends stopping unnecessary face creams, and a doctor will guide how to stop a steroid cream safely, since a flare can occur when it is stopped.

Acanthosis nigricans

DermNet describes acanthosis nigricans as thickened, velvety, darker skin, most often in body folds, commonly associated with insulin resistance and obesity. It can also affect the face. If you have darkness around the mouth along with a dark neck or underarms, ask your doctor about a blood sugar test. See our guide on dark underarms and acanthosis nigricans.

Can dark skin around the mouth be a sign of diabetes?

Sometimes. DermNet explains that acanthosis nigricans is most often linked to insulin resistance, where obesity, type 2 diabetes or other metabolic problems are present, and that it can also be associated with certain medicines such as oral contraceptives. DermNet also describes a pattern in darker skinned people in which similar velvety darkening appears on the face, including the forehead and cheeks.

Clues that point towards this cause rather than melasma or irritation:

• A velvety or slightly thickened feel, not just a colour change
• Darkening of the neck, underarms or groin at the same time
• Weight gain, irregular periods or a family history of diabetes

If these sound familiar, ask your doctor about checking your blood sugar. Gradual weight management and treating insulin resistance can help the skin, while bleaching creams and scrubbing do not.

What can I do at home?

Gentle, consistent care helps with every cause:

1. Use sunscreen every day on the whole face including the upper lip and chin, and reapply when outdoors. UV and visible light worsen most pigmentation. See our sunscreen guide for India
2. Stop licking your lips. Use a plain, fragrance free lip balm or petroleum jelly on the lips and the skin just around them
3. Use a mild cleanser and avoid scrubbing the area
4. Moisturise the skin around the mouth, especially in winter
5. Check your products. If darkness started after a new toothpaste, lipstick or lip tint, stop it and see whether it improves
6. Be gentle with hair removal. Repeated waxing, threading or bleaching of the upper lip can irritate the skin. Discuss gentler options with your dermatologist
7. Treat acne early to reduce marks

What should I avoid?

• Steroid creams and fairness creams from the chemist. They can cause perioral dermatitis, thin the skin and worsen pigmentation over time. Read our guide on topical steroid misuse
• Lemon juice, baking soda, toothpaste, raw potato or alum rubbed on the skin
• Harsh scrubs and peel off masks
• Unsupervised strong acids or peels bought online

Our article on dark spot home remedies and myths explains why many popular remedies do not help.

How does a dermatologist treat perioral pigmentation?

Your dermatologist will first find the cause. They may examine the skin with a dermatoscope and ask about your products, hair removal habits, medicines and health. Treatment may include:

• Treating the cause, such as stopping a triggering product, treating perioral dermatitis or managing insulin resistance
• Prescription creams to fade pigmentation, used under supervision
• Chemical peels, selected carefully for Indian skin. See our chemical peels guide
• Maintenance with sun protection, because pigmentation tends to return with sun exposure

Improvement is usually gradual over months, and some types, especially familial patterns and melasma, can be managed but may not disappear completely.

You may also find this guide useful: Dark Knees, Elbows and Lips: Causes and What Helps.

When to see a dermatologist

See a dermatologist if:

• The darkness is spreading or has appeared suddenly
• There is itching, burning, redness or small bumps around the mouth
• You have used steroid or fairness creams on the area
• You also have darkening of the neck or underarms, or weight gain
• Pigmentation is not improving after two to three months of sun protection and gentle care
• The darkness is affecting your confidence

Dr. Maria offers online consultations where you can share clear photos in daylight and list the products you use, so she can help identify the cause and plan safe treatment.