Hairline acne: causes, pomade acne and treatment

Small bumps along the hairline and the top of the forehead are often acne caused by hair products. The American Academy of Dermatology (AAD) says: "The oils in hair care products can cause tiny breakouts along your hairline and forehead." The AAD names pomade as its example of a styling product with a lot of oil, and acne from it is often called pomade acne. This guide covers what hairline acne looks like, how to find the product behind it, how to treat it, what the sources say about the temples, and which bumps along the hairline are a different condition. It is part of Skinli's guide to acne by face area.

Skinli gives general education and is not a doctor. This page names no brand. The scalp, the forehead and the back of the neck have their own guides: scalp acne, forehead and chin acne and acne on the back of the neck.

What hairline acne looks like

The AAD describes tiny bumps along the hairline, along the upper part of the forehead, or both, and sometimes along the back of the neck. It says: "Shampoos, conditioners, and styling products can cause whiteheads and other types of acne in these areas." When hair products are the cause, it says you will likely get whiteheads and tiny skin-colored bumps called papules.

The bumps can be hard to spot. The AAD says: "The bumps can be so subtle that you can feel but not see them." Some people get many bumps packed close together that they can see.

A whitehead is a pore that is plugged and closed at the top. The AAD explains: "A whitehead forms when excess oil and dead skin cells build up and plug the opening of a pore."

Sports gear can cause a similar first sign. The AAD says acne from sports equipment often starts as small, rough bumps that you can feel more easily than see. "These may appear where a chin strap, helmet, or other piece of equipment rubs."

What causes acne along the hairline

Oil in hair products. This is the cause the AAD describes in the most detail. It says: "When hair care products contain oil, the oil can find its way to your skin. Once this happens, the oil can clog your pores." Clogged pores lead to acne. The AAD lists shampoos, conditioners, styling gels, waxes, pastes and sprays among the hair products that can contain oil, and adds: "Even shaving creams and aftershave can contain oil."

This can happen to anyone. The AAD says: "Even if you've never had acne, hair care products can cause breakouts." It calls acne from products put on the skin or hair acne cosmetica, and says it is so common that it has its own medical name.

Oil from the hair itself. The AAD's tips for acne include: "Shampoo regularly. The oil from your hair can cause acne on your forehead." It advises: "If you have oily hair, shampoo more often than you do now and keep your hair away from your face."

Helmets, caps and headbands. The AAD says acne from gear appears "when sports equipment or clothing traps heat and sweat on your skin." Football and hockey players may get it on the forehead, the chin or the shoulders. Hair product residue also builds up on things that touch the head, and the AAD says it "can stick to just about anything." Shared gear adds another risk. The AAD warns that if you use shared equipment and then wipe your forehead, "you can spread acne-causing bacteria and oil from the equipment to your skin".

Things that make acne worse. The AAD lists too little sleep and oily hair care products such as pomade among the things that can make acne worse. It says stress cannot cause acne, but stress "may worsen existing acne."

Is hairline acne hormonal?

No source read for this guide ties the hairline to hormones. The NHS names "changes in hormone levels, such as during puberty, periods, menopause and pregnancy" among the causes of acne in general. For the hairline, the AAD points to hair products, and it says they can cause breakouts in people who have never had acne at all.

A hormone problem usually shows in more than one place. The AAD says women whose acne comes from a hormone condition "usually have other signs of a hormone problem, such as hair loss on their head, noticeable hair growth on their face". If you have those signs, or irregular periods, see a doctor. The PCOS acne and adult acne guides cover this.

Pomade acne

The AAD gives pomade as its example of a styling product with a lot of oil. It says that if you use such a product, that product is likely the cause of your breakouts. Pomade acne is the common name for this. The bumps look like the ones above: whiteheads and small skin-colored bumps along the hairline and the forehead, where hair and product touch the skin.

No source read for this guide tested water-based pomade, or any single pomade, for acne. What the AAD gives is a way to judge any hair product by its label. It says to "stop using products when you don't see one of the following words on the label:"

• Won't clog pores
• Oil free
• Non-comedogenic
• Non-acnegenic

The NHS explains that non-comedogenic products are made so "they will not clog pores". The AAD's general acne advice is to use only makeup, sunscreen, and skin and hair care products labeled non-comedogenic or "won't clog pores."

How to find the product behind it

Sometimes the cause is easy to see, such as a pomade you use every day. Other times it is less clear. The AAD's advice gives these steps:

1. Stop the product with the most oil first, if one stands out.
2. If nothing stands out, stop the products that do not carry one of the four label words above.
3. Wash everything your head touches: "Pillow cases and sheets", caps, hats, headbands and visors. Residue from hair products sticks to them.
4. Keep hair off your forehead, and shampoo oily hair more often.
5. Wait. The AAD says: "After you stop using acne-causing products, it can take 4 to 6 weeks for the acne to clear."

The AAD gives no number of days between pillowcase washes for this. The pillowcases and acne guide covers what is known about pillowcases.

How to treat hairline acne

Remove the cause. The AAD says this type of acne tends to clear on its own once the product no longer touches your skin. "You should see clearing within 6 weeks. If your skin doesn't clear by then, you may want to see a dermatologist for help."

Treat the whole area. The AAD says: "To prevent new blemishes, spread a thin layer of the acne medication evenly over your acne-prone skin." For hairline acne, that means the whole strip of skin along the hairline and the upper forehead. The AAD adds: "To unclog pores, dermatologists recommend using a retinoid. You can buy one retinoid, adapalene, without a prescription." For acne from sports gear, it says an acne medicine with salicylic acid often works well. How to start adapalene explains the first weeks.

Wash gently. The AAD says: "Gently wash your face up to twice daily and after sweating." During sport, it advises: "When working out, use a clean towel to gently pat sweat from your skin." More washing makes things worse. The AAD warns: "Washing your face several times a day can further irritate your skin, leading to more breakouts."

Add padding under gear. For helmets and straps, the AAD says: "Place clean, soft padding between the equipment and your skin." It also says: "Acne mechanica tends to clear more quickly than regular acne." Acne mechanica is its name for acne caused by rubbing.

Leave the bumps alone. The NHS says "do not pick or squeeze spots because this can cause scars". The AAD explains that squeezing pushes pus, dead skin cells or bacteria deeper into the skin. The should you pop a pimple guide explains why.

Give it time. The AAD says: "Give treatment six to eight weeks to work." Skinli's plan pages use 8 to 12 weeks for skin to change.

Bumps along the hairline that may be something else

What you see	What it may be	Source
Tiny whiteheads and skin-colored bumps where hair products touch	Acne from hair products (acne cosmetica)	AAD
A sudden breakout of spots, each with a red ring	Folliculitis, an infection of the hair roots	AAD
Scaly, itchy, red patches on the scalp and face	Seborrheic dermatitis	NHS, AAD
Red, irritated skin after a hair dye, spray, gel or mousse, sometimes with blisters or cracks	Contact dermatitis	NHS
One hard, painful lump that fills with pus	A boil	NHS

Folliculitis. The AAD calls it "a common skin infection that develops in the hair follicles." It says: "It usually looks like a sudden acne breakout. Each spot may have a red ring around it, which is a sign of the infection." A dermatologist can tell it apart from acne.

Seborrheic dermatitis. The NHS lists scaly, itchy and red patches on the scalp, the face and other areas as a sign of seborrheic dermatitis. The AAD describes it as a common condition that causes a scaly rash on oily areas such as the scalp and face. It says the condition is not contagious, and that dandruff may be its mildest form.

Contact dermatitis. The NHS lists red, irritated skin, sometimes with blisters and cracked skin, as a sign of a reaction to products such as hair dye, sprays, gels or mousses. The AAD describes a woman who reacted to a shampoo that touched her skin only while she rinsed it off.

Bumps under the hair, on the scalp itself, are covered in scalp acne.

Acne on the temples

No source read for this guide discusses acne at the temples as its own topic. The AAD's advice on hair products covers the hairline and the forehead. For bumps that sit where your hair or your hair products meet the skin, the steps above apply.

One rare condition does name the temples. The AAD describes chloracne, a skin condition that follows contact with toxic chemicals. It says the blackheads of chloracne can form on the temples, the cheekbones and elsewhere on the body, and that most people with it feel ill.

A boil at the temple needs care. The NHS says to ask for an urgent GP appointment, or to get help from NHS 111, if you have a boil and "it is on your face". A 2025 case report describes a teenage boy who became seriously ill shortly after a boil on the left side of his forehead, at the temple, had healed. Doctors found cavernous sinus thrombosis, a blood clot in a space at the base of the brain. He had a fever, swelling around both eyes, and pain and trouble moving his eyes, and he recovered with treatment in hospital. The authors call this complication "rare but life-threatening" and say it usually starts from infections in the middle of the face. This is one case, and it shows why a boil anywhere on the face needs a doctor.

When to see a doctor

See a doctor or a dermatologist when:

• hairline acne has not cleared 6 weeks after you stopped the product you suspect (AAD),
• the bumps are deep and painful, or they leave scars or dark marks,
• a flaky, itchy rash spreads to your face (the NHS advises seeing a GP for this).

Get urgent help the same day when:

• a lump on the face is hot, painful and swollen, or you feel hot, cold or shivery (NHS),
• redness or swelling spreads away from a lump (NHS),
• a bump near the temple is followed by fever, swelling around the eyes, eye pain or a change in your vision (2025 case report, MedlinePlus).

Acne in other parts of the face has its own guides, linked from the acne by face area guide.