Skin hydration is one of the biggest factors influencing how skin looks and feels. When skin becomes dehydrated, it can appear dull, feel tight, and make fine lines more noticeable.
While many people focus on moisturisers and serums, hydration is influenced by much more than the products you apply to your skin.
Here, we’ll help you understand what causes skin to lose hydration, how to restore moisture levels, and the role collagen can play in supporting hydrated, healthy-looking skin.
What Is Skin Hydration?
Skin hydration refers to the amount of water contained within the skin. Well-hydrated skin tends to appear smoother, plumper, and more radiant, while dehydrated skin can look tired, rough, or lacklustre.
The skin relies on a healthy barrier to help prevent moisture loss; this barrier, known as the stratum corneum, acts as the body's first line of defence against environmental stressors while helping to lock water into the skin.
When this barrier becomes compromised or the skin loses its ability to retain moisture effectively, dehydration can occur.
It's important to understand that dehydrated skin and dry skin are not always the same thing, though.
Dry skin is a skin type that produces less oil, while dehydrated skin is a condition caused by a lack of water. Even oily skin can become dehydrated.
What Causes Skin to Lose Hydration?
There are many factors that can affect the skin's moisture levels, including:
Ageing
One of the most significant influences on skin hydration is age.
As we get older, natural collagen production begins to decline. Levels of hyaluronic acid, a substance naturally found in the skin that helps retain water, also decrease over time.
These changes can make it more difficult for the skin to hold onto moisture, leading to increased dryness and a loss of plumpness.
Environmental Factors
The environment plays a major role in skin hydration.
Cold weather, wind, central heating, air conditioning, and prolonged sun exposure can all contribute to moisture loss.
These factors can weaken the skin barrier and increase transepidermal water loss, the process by which water evaporates from the skin.
Skincare Habits
Using harsh cleansers, over-exfoliating, or applying too many active ingredients can disrupt the skin barrier.
While ingredients such as retinol, exfoliating acids, and vitamin C can offer benefits when used correctly, overuse may leave skin feeling irritated and dehydrated.
Lifestyle Factors
Stress, poor sleep, smoking, and excessive alcohol consumption can all affect skin health.
Chronic stress, in particular, may contribute to inflammation and impair the skin's ability to maintain a healthy barrier.
Nutrition and Hydration
What you eat and drink can also influence skin health.
A balanced diet containing sufficient protein, healthy fats, vitamins, and minerals provides the building blocks required for healthy skin function.
Staying hydrated is also important for overall wellbeing and may support skin health as part of a healthy lifestyle.
Signs Your Skin May Be Dehydrated
One reason skin dehydration can be difficult to identify is that it doesn't always look like dry skin.
While some people experience obvious dryness, others notice their skin looks dull, feels tight, or has lost some of its usual smoothness.
Fine lines may appear more pronounced when the skin lacks moisture, and some people find their complexion feels rough or less elastic than usual.
Makeup may also sit differently on dehydrated skin, particularly in areas with low moisture levels.
Dehydration can affect any skin type, including oily skin. In fact, it's possible for skin to feel oily on the surface while still lacking adequate water beneath.
These symptoms often become more noticeable during seasonal changes, periods of stress, illness, or when the skin barrier has been disrupted.
The Best Ways to Restore Skin Hydration
Skin hydration is influenced by both external and internal factors. While topical skincare can help reduce moisture loss at the skin's surface, nutrition, collagen production, sleep quality, and environmental exposure can also affect how well the skin retains hydration over time.
Support Your Skin Barrier
A healthy skin barrier is essential for maintaining hydration.
Choose gentle cleansers that do not strip the skin of its natural oils and use moisturisers that help reinforce the skin barrier.
Ingredients such as ceramides, glycerin, and hyaluronic acid are commonly used in skincare products designed to support hydration.
Protect Your Skin from the Environment
Daily sun protection is one of the most important steps for maintaining healthy skin.
UV exposure can accelerate collagen breakdown and contribute to skin damage over time.
Protecting the skin from excessive sun exposure can help support long-term skin health.
During colder months, using a humidifier and avoiding excessively hot showers may also help reduce moisture loss.
Prioritise Nutrition
Skin cells require a range of nutrients to function effectively.
Protein is particularly important because amino acids are the building blocks of many proteins throughout the body, including collagen.
Healthy fats, vitamins, minerals, and antioxidant-rich foods also play important roles in supporting overall skin health.
Get Quality Sleep
The skin undergoes important repair and regeneration processes during sleep.
Consistently poor sleep may affect skin appearance and exacerbate signs of fatigue and stress.
If you're struggling to get quality sleep, reducing light exposure can be a simple place to start.
Our Bamboo Sleep Mask is designed to block out light and help support a more restful sleep environment.
Manage Stress
Many people notice changes in their skin during periods of increased stress. Research suggests that chronic stress may impair the skin barrier and increase moisture loss, making dehydration more noticeable.
Stress can also affect sleep quality, lifestyle habits, and overall wellbeing, all of which play a role in skin health.
Finding ways to manage stress, such as regular exercise, mindfulness practices, spending time outdoors, or making time for activities you enjoy, may help support both your wellbeing and your skin.
Can Collagen Help with Skin Hydration?
While collagen is often associated with skin firmness and elasticity, research has also linked collagen supplementation with improvements in skin hydration.
Collagen forms a key part of the skin's structure, helping to support strength, resilience, and moisture retention.
As collagen levels naturally decline with age, changes in skin hydration and elasticity can become more noticeable.
Research has found that collagen supplementation may support skin hydration alongside other aspects of skin health, including elasticity and skin appearance.
Researchers believe this may be linked to collagen's role within the dermal layer and its contribution to maintaining healthy skin structure.
Why Collagen Levels Matter for Healthy-Looking Skin
Collagen provides much of the structure that helps skin appear smooth, firm, and resilient.
When collagen production declines, the skin can become thinner, less elastic, and less able to retain moisture effectively. This is one reason hydration concerns often become more noticeable with age.
Supporting collagen production has therefore become an important focus within both skincare and nutritional wellness.
Vitamin C also plays a key role, contributing to normal collagen formation for the normal function of the skin. Without adequate vitamin C, the body's ability to produce collagen is impaired.
How Arella Supports Skin Hydration
Skin hydration is influenced by a wide range of factors, from environmental exposure and skincare habits to nutrition, sleep, stress, and collagen levels.
While there is no single solution, a consistent approach to skin health can help your skin retain moisture and maintain a healthy appearance.
Collagen is one area that many people choose to focus on, particularly as natural production declines with age.
Research has linked collagen supplementation with improvements in skin hydration, elasticity, and overall skin health, making it a valuable addition to a broader wellness routine.
At Arella, our Vegan Liquid Collagen contains VeCollal®, an amino acid complex designed to identically match the amino acid profile of human Type I collagen.
Unlike traditional marine or bovine collagen supplements, VeCollal® is completely vegan and was developed using bioinformatics and collagen research to provide the amino acid building blocks associated with human Type I collagen.
Our formula also contains Vitamin C, which contributes to normal collagen formation for the normal function of skin, alongside carefully selected ingredients including Centella Asiatica and Panax Ginseng.
When combined with a healthy lifestyle, a balanced diet, and a skincare routine that supports the skin barrier, these ingredients can help you take a more comprehensive approach to achieving hydrated, healthy-looking skin.
For the ultimate combination in skin support, take a look at our collagen and skin gummies bundle.
And for more advice on caring for your skin, browse our other guides.
