Can scalp dryness cause hair loss

If you’ve noticed some hair loss along with a dry or flaky scalp, you might be wondering whether there’s a link between the two.

In short, scalp dryness doesn’t directly cause permanent hair loss – but it can make it difficult for your hair to grow as it should.

Here’s what you should know about dry scalp and hair loss, and what you can do to help your hair and scalp thrive.

What causes a dry scalp?

Dry scalp happens when the skin on your head loses moisture. Your scalp then becomes irritated, leading to common symptoms like itching, sensitivity, tightness, redness and small white bits of skin flaking from your head.

The main causes of dry skin on the scalp include:

• Environment: Cold, dry weather, air conditioning and indoor heating can dry out your scalp
• Skin conditions and infections: Eczema, psoriasis, tinea capitis (scalp ringworm) and solar keratosis (a form of sun damage) are some of the conditions associated with a dry scalp
• Hair habits: Overwashing (especially with harsh shampoos), heat styling, dyeing your hair and using very hot water can strip the oils from your scalp
• Ageing: Your body produces less oil as you get older, and your skin typically becomes thinner and less elastic – two factors that can contribute to a dry scalp
• Lifestyle: Factors like stress, poor diet, dehydration and smoking can lead to a dry scalp

It’s worth mentioning that dry scalp and dandruff might appear similar, with overlapping symptoms like an itchy scalp and flaking skin. But the two conditions have very different underlying causes. While dry scalp is due to reduced moisture levels, dandruff is the result of an excessively oily scalp, making skin cells accumulate on the scalp and flake off in larger pieces. It's a common symptom of a chronic skin condition called seborrheic dermatitis.

Does a dry scalp cause hair loss?

A dry scalp can be a frustrating and uncomfortable thing to deal with, making you itchy and irritated. But it’s not usually a cause of permanent hair loss. 

Instead, hair loss is typically brought about by:

• Genetics: Genes are the leading cause of female hair loss, with around 40% of women experiencing a genetic condition called androgenetic alopecia, or female pattern baldness, by age 50 [1][2]
• Medical conditions: Thyroid disease, severe scalp infection, lupus, polycystic ovary syndrome (PCOS) and some autoimmune diseases (such as alopecia areata, where the immune system attacks the hair follicles) can result in hair loss
• Hormones: Your hormone levels undergo massive shifts during pregnancy, childbirth and menopause, potentially causing permanent or temporary hair loss
• Some medications: Antidepressants, anticoagulants and treatments like chemotherapy may trigger hair loss
• Nutritional deficiencies: If you have low levels of iron, vitamin D or zinc, you may experience hair loss
• Stress: Chronic stress, depression and anxiety can lead to hair loss, as stress can push hair follicles into a resting phase
• Extreme diets or weight loss: Low-calorie, low-protein diets don’t give your hair enough sustenance to grow, possibly making it fall out. Rapid weight loss can also result in hair shedding because the body diverts nutrients to essential functions
• Harsh hairstyles: Chemical dyes, heat styling and hairstyles like ponytails, extensions and braids can irritate the hair follicles and cause hair loss

The link between dry scalp and hair loss is more indirect. When your scalp is dry, it’s often very irritated – making you want to scratch it to get some relief. Regular, intense scratching can damage your hair, weaken your hair follicles and irritate your scalp, sometimes leading to hair breakage.

A dry scalp can also make it harder for healthy hair to grow, as your hair follicles need moisture and nutrients to produce strong hair.

Lastly, it may just be that the factor behind hair loss is the same one contributing to a dry scalp. For instance, if you’re going through menopause, you might be losing hair and experiencing scalp dryness, but one isn’t necessarily causing the other. You might also dye and heat-style your hair regularly, both of which can also trigger hair loss and dry scalp.

How to prevent a dry scalp

So, what can you do to try to prevent a dry scalp? While some factors may be unavoidable – like ageing – there are a few lifestyle habits you can adopt to support scalp and hair health.

Everyday habits for a healthier scalp

Wash gently

Wash your hair with lukewarm water instead of scorching hot water, and opt for gentle shampoo and conditioner. You want hair products that contain moisturising ingredients like aloe vera, glycerin and hyaluronic acid and are free from alcohol, sulphates, fragrance and harsh detergents.

If you can, try to wash your hair just 2–3 times weekly to avoid stripping too much moisture from your scalp.

Style gently, too

Reduce your use of hair straighteners and blow dryers, and apply a heat protectant before you style. Try styling on a lower heat setting, too. 

Harsh dyes and bleaching treatments can dry out your scalp, so doing a deep conditioning treatment beforehand may help to protect the scalp.

Drink plenty of water

Aim for around two litres of water each day to keep your scalp and hair well hydrated.

Eat the right foods

Foods rich in omega-3s (think oily fish, chia seeds, nuts, healthy oils and avocado), zinc (oysters, pumpkin seeds and lentils), vitamin A (carrots, pumpkin, sweet potato and spinach) and protein (lean meats, eggs and legumes) all support your scalp health. 

Water-rich foods like watermelon, cucumber and tomatoes may also help boost your hydration levels.

Manage stress

Stress contributes to several health issues, including scalp dryness, so getting your stress levels under control may help. Activities like meditation, yoga, journaling, exercise, spending time in nature or with loved ones, and breathing exercises can all help to reduce stress.

Quit smoking

Smoking triggers inflammation and oxidative stress, and allows less blood flow to your scalp – all of which can cause a dry scalp. Giving up cigarettes may help to improve circulation and scalp health.

How to treat a dry scalp

If you already have a dry scalp and lifestyle changes aren’t improving symptoms, there are several treatments you can try.

At-home care options

Medicated shampoos

Over-the-counter shampoos with ingredients like ketoconazole, zinc pyrithione, selenium sulfide and coal tar may help reduce irritation and flaking. 

Exfoliating treatments

Chemical exfoliants can help to loosen and remove the tiny flakes that develop through scalp dryness. Look for dry scalp remedies, including salicylic acid or lactic acid.

Scalp serums or lotions

Several leave-in serums and lotions contain nourishing ingredients such as hyaluronic acid and niacinamide to help restore hydration and soothe irritation.

Natural oils

Olive, coconut, avocado, jojoba and tea tree oil can add extra moisture to your scalp. Apply them topically or incorporate a scalp massage to improve blood flow.

When medical treatments may help

In some situations – like if your dry scalp is severe or persistent – you may need to turn to a medical dry scalp treatment. This kind of solution has more potent ingredients that can target the underlying cause.

Prescription shampoos

If over-the-counter shampoos aren’t working, your GP or dermatologist can prescribe a medicated shampoo to address scalp dryness. These often contain the same active ingredients in higher strengths.

Topical creams

Short courses of steroid creams, foams, scalp solutions or ointments may calm redness and irritation.

Treatments for other skin conditions

If your dry scalp is due to another condition like eczema or psoriasis, you may find that addressing it can help your scalp, too.

Tailored solutions

A dermatologist can recommend a personalised treatment plan to help target the underlying cause.

When to speak to a doctor about a dry scalp

If all else fails, or you notice any of the following signs, your scalp may require more serious attention. Your GP can either recommend treatment or refer you to a dermatologist for a more specialised assessment.

• If flakes won’t go away after a few weeks
• If your scalp is very itchy or inflamed
• If you notice thick scales or patches
• If symptoms go beyond your scalp and to other parts of your body, like your eyebrows, nose, ears or hairline
• If you’re experiencing hair thinning – there could be an issue causing both that requires medical treatment

If you are noticing hair loss alongside a dry scalp, Juniper’s brand-new Hair Renewal Treatment may be the solution you’re looking for.

After taking the initial screening quiz to assess your needs, you’ll gain access to a range of treatments designed to target different stages of hair loss, along with topical formulas that nourish and support your scalp – helping to prevent both hair loss and scalp dryness.

In as little as 3–6 months, your hair will feel thicker, stronger and healthier, the hair growth cycle can begin again, and your scalp may just regain its balance.

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