What causes dry skin on legs & face 

Overview

Dry skin (xerosis) occurs when the skin loses excessive moisture and natural oils. This condition is particularly common on the legs and face, as these areas tend to have thinner skin and are more exposed to environmental factors and everyday skincare products. Several factors can contribute to dry skin, including climate changes, skincare habits, ageing, and underlying health conditions. Note: The content of this blog is for informational purposes only and does not replace professional medical diagnosis, advice, or treatment.

How Dry Skin Develops

Dry skin typically starts with a weakened skin barrier. When this barrier is compromised, moisture escapes more easily, leading to rough, dehydrated skin. Ageing can worsen this process as natural oil production declines over time. Environmental factors such as dry air, cold winds, indoor heating, and hot temperatures can further strip the skin of its moisture.

Signs & Symptoms

If you have dry skin, you may notice the following symptoms:

• Skin tightness
• Flakiness or peeling
• Rough texture
• Cracks or bleeding
• Itching
• Redness or irritation
• Dull appearance
• Lighter or darker than your normal skin tone

While mild dryness is common, worsening or persistent symptoms may indicate a more serious concern.

External Causes (Lifestyle & Environment)

Common everyday factors include:

• Cold weather: Reduced humidity and cool weather draw moisture out of skin.
• Sun exposure: UV rays can weaken the skin's protective layer, making it prone to dryness.
• Pollution: Pollutants in the air can damage the skin's natural barrier and lead to dryness.
• Wind: Strong winds can aggravate and dehydrate bare skin.
• Indoor heating or air conditioning: These systems reduce indoor moisture levels, contributing to skin dryness.
• Hard water: Hard water with high mineral content can prevent moisturisers from absorbing and dry out skin.
• Hot showers: Long, hot showers can deplete the skin's essential oils.
• Climate and seasonal shifts (low humidity, winter dryness, summer heat)
• Harsh soaps, detergents, or skincare products
• Exposure to chlorinated or salty water
• Tight clothing or friction against the skin

These habits and environmental exposures can disrupt the skin barrier and worsen dryness.

Internal & Biological Factors

Several internal factors can contribute to increased skin dryness:

• Ageing (reduced oil production)
• Eczema (Atopic Dermatitis): A condition that leads to inflammation and dryness of the skin. The 12-month prevalence of eczema in Australia was 15.1% at age 18, while the current prevalence was 8.5% at an average age of 51 and 8.8% at an average age of 53.
• Psoriasis: A common immune-mediated skin condition that leads to flaky, dry patches. Psoriasis affects at least 2% of the Australian population.
• Diabetes: Impaired blood flow and dehydration caused by high glucose levels can lead to dry skin. More than 1.3 million (1 in 20) Australians were living with diabetes in 2021.
• Thyroid disorders: Hypothyroidism can also cause dry, dull skin. Around 14% of older Australians suffer from a clinically relevant thyroid disorder.
• Genetics: Some individuals are genetically inclined to dry skin, as it may be inherited from family members. For example, ichthyosis vulgaris is a hereditary disorder characterised by chronic dry, scaly skin.
• Medications like diuretics and certain treatments
• Lifestyle factors, including dehydration or poor nutrition

Managing these causes may require more than topical moisturisers and could involve medical advice.

Lifestyle Factors

Here are some common lifestyle factors that can lead to dry skin:

• Poor diet: Insufficient intake of essential fats, vitamins, and antioxidants may leave skin dehydrated and dull.
• Inadequate water intake: Inadequate water intake may disrupt your skin's moisture levels from within.
• Over washing: Washing your hands or face too frequently, especially with hot water, can cause skin dryness.
• Avoiding moisturisers: Failing to moisturise or using an inappropriate product for your skin may result in dehydration.
• Excessive use of harsh soaps or skincare products: Products with alcohol, fragrances, or potent chemicals can strip natural oils.
• Smoking: It damages collagen and drains the skin of essential nutrients, resulting in dehydration and premature wrinkles.
• Overconsumption of caffeine or alcohol: Both can lead to dehydration, resulting in dry and dull skin.

Lifestyle factors like inadequate water intake, poor diet, harsh skin products, over-cleansing, neglecting moisturisation, smoking, and excessive consumption of caffeine or alcohol can lead to dry skin. Adopting healthier habits, such as staying hydrated and using mild skincare products, can help prevent skin dryness.

Warning Signs to See a GP

You should consult a GP if you notice:

• Persistent dryness that doesn't improve with moisturisers
• Deep cracks, bleeding, or signs of infection
• Severe itching or rashes
• Dry skin accompanied by other symptoms such as fatigue or unexplained weight changes

These signs may indicate an underlying condition that requires medical attention. If you develop symptoms of a severe skin infection (such as rapidly spreading redness, intense pain, or high fever), call 000 or visit the nearest Emergency Department immediately.

Risk Factors

Several factors can increase your likelihood of experiencing dry skin, even with regular moisturising. Recognising these can aid you in taking better preventative measures.

• Age: As you age, your skin generates less oil, making it more susceptible to dryness.
• Climate: Chilly, dry weather or living in regions with low humidity can drain moisture from your skin.
• Frequent exposure to hot showers and baths: Regularly taking hot showers can wash away natural oils from your skin.
• Harsh skincare products: Soaps, cleansers, and alcohol-based products can irritate and dry out your skin.
• Health issues: Skin conditions like eczema, psoriasis, or diabetes can heighten the risk of dryness.
• Job-related exposure: Occupations that involve frequent hand washing or working in arid environments can lead to ongoing dry skin.

Recognising your risk factors can assist in adjusting your skincare routine and environment to better shield and hydrate your skin.

Which Vitamin Deficiency Causes Dry Skin?

Dry skin can be caused by deficiencies in several essential vitamins particularly vitamins D, A, C, E, niacin (B3), and zinc. These vitamins play vital roles in maintaining skin hydration, strengthening the skin's barrier, and boosting collagen production. Deficiencies may cause dryness, flakiness, and irritation.

What Should I Eat or Drink with Dry Skin?

Limit excessive consumption of alcohol, caffeine, salt, and sugar, as they can contribute to dehydration. Focus on a balanced diet that includes fatty fish, avocados, sweet potatoes, leafy greens, eggs, cucumbers, and other water-rich fruits. Coconut water, herbal teas, and fresh juices are also beneficial.

Why Is My Skin So Dry Even When I Moisturise?

If you continue to experience dry skin despite moisturising, it might be due to various underlying reasons. Sometimes, it's not just about how frequently you apply moisturiser, but rather the type of product and the method of application.

• Inappropriate moisturiser: Not every moisturiser is suitable for everyone. You may require a more intensive formula featuring ingredients like ceramides, urea, or hyaluronic acid to effectively hydrate and mend the skin barrier.
• Incorrect application: Moisturiser works best when applied to slightly damp skin, best immediately applied after bathing or washing, to help lock in moisture. Applying it on dry skin may not yield optimal results.
• Over washing or using harsh products: Frequent cleansing or harsh soaps can remove natural oils. Even with moisturising, if your skincare routine is too aggressive, your skin may remain dry.
• Environmental influences: Cold climates, dry indoor environments, and windy conditions can rapidly drain moisture. Utilising a humidifier and wearing protective clothing can help mitigate these impacts.
• Underlying skin issues: Conditions such as eczema, psoriasis, or dermatitis can lead to ongoing dryness that regular moisturisers won't alleviate without specific treatments.

If moisturising isn't effective, it may be time to reevaluate your products, routine, or investigate potential skin disorders. A dermatologist can assist in identifying the underlying issue and suggest the most appropriate solution.

How Is Dry Skin Diagnosed?

Diagnosis of dry skin involves a comprehensive approach, including a physical examination and a detailed patient history to identify potential underlying causes and contributing factors. Typically, dry skin is identified through a physical examination conducted by a healthcare professional or dermatologist. They will evaluate the dryness's appearance, texture, and location. You might be questioned about your skincare habits, lifestyle, environmental factors, and any existing health issues. In certain situations, if a skin condition like eczema or psoriasis is suspected, further assessments such as skin cultures or allergy tests may be suggested.

Complications

Neglected or severe cases of dry skin can lead to various issues that impact comfort and dermatological health. Ongoing dryness might result in fissures and open sores, heightening the risk of infections. Persistent itching can lead to scratching, which might cause inflammation, bleeding, or even scarring. In certain instances, dry skin can exacerbate eczema or provoke flare-ups. Over time, the skin may become hardened, uneven, or discoloured. Timely intervention can help avert these complications.

Prevention & Daily Care Tips

Simple everyday habits can make a significant difference in preventing and managing dry skin:

• Moisturise consistently: Apply a high-quality moisturiser right after your shower to help retain moisture. Look for products containing ingredients such as intensive hydrating ingredients.
• Avoid hot showers: Hot water may deplete your skin of its natural oils. Prefer lukewarm water and limit shower time to 10–15 minutes.
• Select mild cleansers: Opt for fragrance-free, soap-free cleansers that won't strip your skin of moisture. Strong soaps can exacerbate dryness.
• Stay hydrated: Make sure to drink plenty of water throughout the day to keep your skin hydrated.
• Shield your skin: Apply sunscreen daily and wear gloves in frigid weather. Harsh conditions can lead to dry and irritated skin.
• Utilise a humidifier: Introducing moisture into the air, particularly during colder months, can help prevent your skin from becoming parched.
• Wear soft, breathable clothing
• Limit exposure to chlorinated pools
• Maintain a balanced diet
• Avoid excessive exfoliation or harsh scrubs
• Consistency is key to preventing flare-ups

Note: This information is for educational purposes only. Consult a GP before trying home remedies to ensure they are safe for your specific condition.

Special Considerations

Certain groups may require additional care and tailored skincare approaches:

• Older adults: Natural oil production decreases with age
• Sensitive or eczema-prone skin: Requires gentle, barrier-supporting products
• Seasonal variations in Australia: Sudden humidity changes can trigger dryness
• Occupational factors: Frequent hand washing or outdoor work may worsen symptoms

Customising your skincare routine for these situations can help maintain a healthy skin barrier.

How Hola Health Can Help

Access to professional guidance can support effective management of dry skin, especially when symptoms persist or worsen. Telehealth services offer a convenient way to seek advice and appropriate care.

• Telehealth appointments with doctors in Australia via phone or video to discuss dry skin symptoms, triggers, and treatment options
• Assistance with the management of eczema, psoriasis, dermatitis, and other skin conditions
• Clinical assessment for medications, including medicated creams and other dry skin management, where clinically appropriate
• Dermatology referrals when specialist care is required
• Online medical certificates for work or school, where clinically appropriate
• Guidance on home care strategies and long-term skin barrier maintenance

While telehealth is a convenient alternative for initial consultation, it cannot replace a physical examination. A face-to-face visit with a medical practitioner may be required for a definitive diagnosis or if a physical skin assessment (such as a biopsy or dermoscopy) is necessary.

Conclusion

Dry skin on the legs and face is common but usually manageable with gentle skincare, regular moisturising, and protection from environmental factors. If dryness becomes persistent, severe, or associated with other symptoms, a GP can help identify the underlying cause. Telehealth services can assist with initial assessment, treatment guidance, prescriptions, and referrals to dermatology specialists when needed.