If your lips have always been darker than your skin, that is usually just your natural lip color, set by your genes. If they have changed, the usual causes are smoking, sun, or an allergy to a lip product or toothpaste. Medicines and medical conditions are less common.
So the useful question isn't how to make your lips pink. It's whether they were always this color, or whether something changed. You might have had darker lips since childhood and only started worrying after a filter or a comment. Or you might be looking at a color that wasn't there last year.
Is It Normal to Have Dark Lips?
Yes. Melanin in the lips and mouth varies a lot from person to person. A review in Head & Face Medicine describes a wide range of normal variation in oral pigmentation. It says these differences are genetically determined unless they come with an underlying disease.
The same review says darker-skinned people have this pigment more often than light-skinned people. Citing an older study, it puts the figure at about 95% of healthy Black people in the United States. It says the gums are the most common place for it.
Lips specifically were looked at in a study from India. Among 109 nonsmokers aged 35 to 44, 31.2% had lip pigmentation, which the authors said might be due to ethnic pigmentation. Color that has been there since childhood isn't something to treat.
Were They Always Dark, or Did They Change?
That one question sorts most cases. Here is how the common patterns line up.
- Dark since childhood, even, and your gums are darker too: natural pigmentation. Nothing to fix.
- Darker over months or years, and you smoke: smoking is the likeliest cause.
- Darker after a new lipstick, balm or toothpaste, often with itching, burning or peeling first: an allergic or irritant reaction.
- Darker after starting a medicine: some medicines can do this, sometimes inside the mouth too.
- Dark lips along with darker skin folds, tiredness, weight loss or dizziness: see a doctor about Addison's disease.
- One new spot that is growing or changing: get it checked for melanoma.
- Lips turning blue or purple: this is usually about oxygen, not pigment, and can be urgent.
Why Are My Lips Turning Dark If I Don't Smoke?
One likely answer is something that touches your lips every day. Mayo Clinic lists leathery patches that are darker than usual among the signs of contact dermatitis, typically on brown or Black skin. On white skin the same reaction more often looks dry, cracked and scaly.
That matters because on deeper skin a lip allergy can show up as darker patches rather than an obvious red rash. Mayo Clinic names balsam of Peru, found in toothpastes, mouth rinses and flavorings, as a common allergen. Mayo also lists cosmetics among common allergens, and names fragrances among things that can trigger a reaction.
The American Academy of Dermatology (AAD) says that if a product burns, stings or feels uncomfortable on your lips, it means you're irritating your lips. It also advises you to stop licking, biting and picking at them. Repeated irritation may also leave darker marks, the same way acne marks linger on dark skin.
Sun is the other everyday cause. MedlinePlus lists sun exposure among the causes of darker skin, and lips get daily sun with little protection. The AAD recommends a non-irritating lip balm with SPF 30 or higher, reapplied every 2 hours outdoors. SPF for lips goes into how to choose one.
Can Medicines Make Your Lips Darker?
Yes, though it's uncommon. MedlinePlus names the antibiotic minocycline, along with certain cancer chemotherapies and birth control pills. All three can darken skin.
A 2019 review in the Journal of the American Board of Family Medicine lists minocycline among several drugs linked to lip darkening. It says antimalarials such as hydroxychloroquine may cause intraoral pigmentation, described as slate gray. In the authors' own Spanish clinic, 16 patients had drug-related darkening, and four of them had it inside the mouth.
Don't stop a medicine because of this. Tell the doctor who prescribed it. The review describes darkening that faded over months once some drugs were stopped, but only your doctor can make that call.
When Are Dark Lips a Sign of Something Medical?
Rarely, but three signs are worth knowing.
Addison's disease is when the adrenal glands don't make enough of certain hormones. The NIDDK says skin darkening in Addison's is most visible on scars; skin folds and pressure points such as elbows and knuckles. It also shows on the lips and the lining of the cheek. It usually comes with tiredness, weakness or weight loss, and sometimes dizziness on standing or salt cravings.
Peutz-Jeghers syndrome is an inherited condition that causes small, dark-colored spots on the lips and around and inside the mouth. MedlinePlus says the spots appear during childhood and often fade with age. It also causes polyps in the stomach and intestines and a high lifetime cancer risk, so it needs a doctor, not a lip product.
Blue or purple lips. MedlinePlus says cyanosis most often occurs because of a lack of oxygen in the blood. On darker skin it may be easier to see on the lips, gums, around the eyes and in the nail beds. Call 911 or your local emergency number if it comes with hard or fast breathing, chest pain, or feeling sleepy or confused.
