Fast answer

Seborrheic dermatitis is a common inflammatory skin condition that causes flaky, itchy and sometimes red skin. It most often affects areas with a high concentration of oil-producing glands, including the scalp, face, eyebrows, sides of the nose, ears and chest. While there is no permanent cure, many people successfully manage flare-ups with the right skincare routine, by reducing common triggers and supporting the skin's natural barrier.

For a complete guide to seborrheic dermatitis, visit our Seborrheic Dermatitis Hub. You can also explore our Seborrheic Dermatitis Collection for products developed to support sensitive, flaky and irritated skin.

Why it works

• Explains the causes of seborrheic dermatitis in simple terms.

• Helps you recognise the early signs of a flare-up.

• Identifies common triggers that may make symptoms worse.

• Shares practical ways to soothe irritated skin.

• Supports long-term skin comfort by helping protect the skin barrier.

Introduction

Living with seborrheic dermatitis can be frustrating.

One week your skin may feel calm, while the next you notice flakes on your scalp, redness around your nose or persistent itching that seems to appear without warning. For many people, flare-ups come and go throughout the year, making it difficult to know what's causing them or how to keep symptoms under control.

Although seborrheic dermatitis is extremely common, it's often misunderstood. Many people mistake it for dry skin, eczema or psoriasis, delaying the right approach to managing their symptoms.

The good news is that understanding what causes seborrheic dermatitis, recognising your personal triggers and following a gentle skincare routine can help reduce flare-ups and improve day-to-day comfort.

What is seborrheic dermatitis?

Seborrheic dermatitis is a long-term inflammatory skin condition that mainly affects areas of the body where oil-producing (sebaceous) glands are most active.

It causes inflammation that often leads to:

• Flaking.

• Itching.

• Redness.

• Greasy or dry scales.

• Irritated skin.

Although it can affect people of all ages, seborrheic dermatitis is most commonly seen in adults and infants. In babies it often appears as cradle cap, while adults usually experience recurring flare-ups that vary in severity over time.

Where does seborrheic dermatitis occur?

Seborrheic dermatitis most commonly affects:

• The scalp.

• Around the hairline.

• Eyebrows.

• Eyelids.

• The sides of the nose.

• Behind the ears.

• Inside the ears.

• Beard area.

• Chest.

• Upper back.

Because these areas contain more sebaceous glands, they are more likely to develop the characteristic redness, irritation and flaking associated with seborrheic dermatitis.

If your symptoms are limited to one area, you may find these guides helpful:

• Scalp seborrheic dermatitis

• Seborrheic dermatitis on the face

• Seborrheic dermatitis around the nose

• Eyelid seborrheic dermatitis

• Seborrheic dermatitis behind the ears

What causes seborrheic dermatitis?

The exact cause isn't fully understood.

Instead, experts believe seborrheic dermatitis develops because several factors work together.

An overgrowth of Malassezia yeast

A naturally occurring yeast called Malassezia lives on almost everyone's skin.

For reasons that aren't fully understood, some people's immune systems react more strongly to this yeast, leading to inflammation and the symptoms associated with seborrheic dermatitis.

Excess oil production

Seborrheic dermatitis usually develops in areas where the skin naturally produces more oil.

The yeast feeds on these oils, which may help explain why flare-ups occur most often on the scalp, face and chest.

Individual immune response

People respond differently to the same skin microorganisms.

Some people develop significant inflammation, while others experience few or no symptoms.

Genetics

Some people appear to have a natural tendency to develop seborrheic dermatitis, suggesting that genetics may also play a role.

Common symptoms of seborrheic dermatitis

Symptoms vary from person to person and may change during a flare-up.

Common symptoms include:

• White or yellow flakes.

• Persistent itching.

• Red or inflamed skin.

• Greasy-looking scales.

• Dry patches.

• Burning or tenderness.

• Sensitive skin.

• Flaking around the eyebrows or nose.

• Scalp irritation.

Some people mainly notice dandruff-like flakes, while others experience redness and significant discomfort.

Common triggers

Although triggers vary between individuals, many people notice that their symptoms become worse during certain situations.

Common triggers include:

• Stress.

• Cold weather.

• Dry indoor heating.

• Fatigue.

• Hormonal changes.

• Illness.

• Certain hair or skincare products.

• Sweating.

• Infrequent shampooing for those with scalp involvement.

Learning to recognise your own triggers can make it easier to reduce future flare-ups.

Is seborrheic dermatitis contagious?

No.

Seborrheic dermatitis cannot be passed from one person to another.

Although Malassezia yeast is involved, this yeast naturally lives on the skin of most healthy people. The condition develops because of the way an individual's skin and immune system respond to it, not because it has been caught from someone else.

How to treat seborrheic dermatitis

Managing seborrheic dermatitis is about reducing inflammation, supporting the skin barrier and minimising the triggers that cause flare-ups.

Because the condition tends to come and go, many people find that a consistent skincare routine works better than only treating symptoms once they become severe.

The aim isn't just to calm an active flare-up, but to help keep your skin comfortable over the long term.

Cleanse gently

Harsh cleansers and heavily fragranced products can sometimes leave already sensitive skin feeling even more irritated.

Instead:

• Use a gentle cleanser suitable for sensitive skin.

• Avoid scrubbing affected areas.

• Wash with lukewarm rather than hot water.

• Pat the skin dry instead of rubbing it with a towel.

Keeping cleansing gentle helps avoid unnecessary irritation while supporting the skin's natural barrier.

Keep the skin barrier healthy

A healthy skin barrier helps retain moisture and provides protection against everyday irritants.

When the skin barrier becomes damaged, flare-ups often feel more uncomfortable and may take longer to settle.

Supporting your skin barrier with gentle, moisturising skincare may help reduce dryness, tightness and irritation associated with seborrheic dermatitis.

Look after your scalp

If your scalp is affected, regular hair washing with an appropriate shampoo can help remove excess oil and loose flakes.

Many people notice improvements when they:

• Shampoo consistently.

• Avoid scratching the scalp.

• Rinse products thoroughly.

• Choose gentle haircare products that don't irritate sensitive skin.

Our Best Shampoo for Seborrheic Dermatitis guide explains what to look for when choosing a shampoo for an itchy, flaky scalp.

Identify your personal triggers

Although seborrheic dermatitis has common triggers, everyone's skin is different.

Many people find it useful to keep track of flare-ups to identify patterns.

Ask yourself:

• Was I particularly stressed?

• Have I been unwell recently?

• Did I change my skincare or haircare products?

• Has the weather changed?

• Am I sleeping less than usual?

Recognising these patterns may help you reduce future flare-ups.

Can lifestyle make a difference?

Lifestyle changes won't cure seborrheic dermatitis, but they may influence how often flare-ups occur.

Many people benefit from:

• Managing stress where possible.

• Getting enough sleep.

• Following a consistent skincare routine.

• Avoiding unnecessary irritation from harsh products.

• Looking after their overall skin health.

Small changes maintained consistently often have a greater impact than making dramatic changes for a short period.

What we've learned from supporting people with seborrheic dermatitis

One of the biggest misconceptions we hear is that seborrheic dermatitis is simply dry skin.

In reality, many people find that using products designed only for dry skin doesn't fully address their symptoms because inflammation and skin barrier disruption are also involved.

We've also found that consistency is incredibly important.

People who follow a gentle routine every day often report fewer flare-ups than those who only change their skincare once symptoms become severe.

Another common theme is scratching.

Although scratching may provide temporary relief, it often increases irritation and prolongs discomfort, particularly on the scalp.

Real customer story

"I thought I just had stubborn dandruff for years. Then the redness started around my eyebrows and nose as well. Once I understood that it was seborrheic dermatitis and started using a gentler routine consistently, my skin became much more comfortable and the flare-ups became far less frequent."

Shared with permission. Individual results will always vary.

Common mistakes people make with seborrheic dermatitis

Seborrheic dermatitis can be unpredictable, but some everyday habits may make flare-ups more frequent or more difficult to control.

Understanding these common mistakes can help you manage your symptoms more effectively and support healthier skin over the long term.

Assuming it's just dandruff

Many people believe seborrheic dermatitis only affects the scalp.

In reality, it commonly develops around the eyebrows, sides of the nose, ears, beard area and chest. Treating it as simple dandruff may mean the underlying inflammation isn't properly managed.

Scratching affected skin

Itching can be difficult to ignore, but scratching often makes inflammation worse.

Repeated scratching may:

• Increase redness.

• Damage the skin barrier.

• Lead to soreness.

• Increase the risk of infection if the skin breaks.

Keeping nails short and using a gentle skincare routine may help reduce the urge to scratch.

Using harsh skincare products

Strong soaps, alcohol-based products, exfoliants and heavily fragranced skincare can all irritate already sensitive skin.

Choosing gentle products developed for sensitive skin may help reduce unnecessary irritation.

Only treating flare-ups

Many people stop their skincare routine as soon as their symptoms improve.

However, seborrheic dermatitis is usually a long-term condition, and maintaining a consistent routine often helps reduce the frequency and severity of future flare-ups.

Constantly changing products

When symptoms don't improve immediately, it's tempting to keep trying different products.

Frequently changing your routine can make it difficult to identify what is actually helping and may expose your skin to unnecessary irritation.

When should you seek medical advice?

You should speak to a healthcare professional if:

• Your symptoms are severe or spreading.

• Your skin becomes painful, swollen or begins to ooze.

• You think your skin may be infected.

• Over-the-counter treatments aren't helping.

• Your symptoms are affecting your confidence or quality of life.

• You're unsure whether your condition is seborrheic dermatitis, eczema or psoriasis.

A healthcare professional can confirm the diagnosis and recommend the most appropriate treatment.

Common myths about seborrheic dermatitis

Myth: Seborrheic dermatitis is caused by poor hygiene

No.

Seborrheic dermatitis isn't caused by being unclean. Although regular cleansing can help manage symptoms, poor hygiene isn't the cause of the condition.

Myth: It's contagious

No.

You cannot catch seborrheic dermatitis from another person or pass it on through touch.

Myth: It's just dry skin

Not usually.

Although dryness can occur, seborrheic dermatitis is an inflammatory skin condition involving a combination of skin oils, the natural Malassezia yeast and your immune response.

Myth: Stress causes seborrheic dermatitis

Stress doesn't directly cause the condition, but many people notice that stress can trigger or worsen flare-ups.

Myth: It only affects the scalp

No.

While the scalp is commonly affected, seborrheic dermatitis can also develop around the nose, eyebrows, eyelids, ears, beard and chest.

Frequently asked questions

What does seborrheic dermatitis look like?

It often appears as flaky, itchy skin with redness and white or yellow scales. The exact appearance varies depending on the area affected and the severity of the flare-up.

Is seborrheic dermatitis permanent?

Seborrheic dermatitis is usually a long-term condition, but many people successfully manage their symptoms and experience long periods with minimal flare-ups.

What triggers seborrheic dermatitis?

Common triggers include stress, illness, cold weather, fatigue, hormonal changes and certain skincare or haircare products. Triggers vary from person to person.

Can seborrheic dermatitis spread?

It may appear in several oil-rich areas of the body, but it doesn't spread through contact with other people.

Is seborrheic dermatitis the same as eczema?

Seborrheic dermatitis and eczema are different skin conditions, although they can sometimes look similar. Both involve inflammation, but they have different causes, triggers and patterns.

Learn more in our Seborrheic Dermatitis vs Eczema guide.

Is seborrheic dermatitis the same as psoriasis?

No.

Although both conditions can cause redness and flaking, psoriasis usually produces thicker, more defined plaques with silvery scales.

Our Psoriasis vs Seborrheic Dermatitis guide explains the differences in more detail.

Final thoughts

Seborrheic dermatitis is a common condition that can affect both your skin and your confidence, but understanding what triggers your symptoms is an important first step towards managing them.

By following a gentle skincare routine, supporting your skin barrier and recognising the factors that trigger your flare-ups, many people find they can reduce irritation and enjoy longer periods of comfortable skin.

If your symptoms affect a specific area, explore our guides on Scalp Seborrheic Dermatitis, Seborrheic Dermatitis on the Face, Seborrheic Dermatitis Around the Nose, Eyelid Seborrheic Dermatitis, Best Shampoo for Seborrheic Dermatitis and Seborrheic Dermatitis Treatment.

Real people. Real reviews. Real results.

At Bragan Skincare, we've helped thousands of people care for sensitive, flaky and irritation-prone skin.

Our products are developed to support the skin's natural barrier using carefully selected ingredients suitable for sensitive skin. While skincare cannot cure seborrheic dermatitis, many customers tell us that a consistent, gentle routine has helped reduce flaking, improve comfort and make flare-ups easier to manage.

Explore our Seborrheic Dermatitis Collection for products designed to support sensitive skin, or visit our Seborrheic Dermatitis Hub for more practical advice and expert guidance.