Skin does not behave the same way in every setting. A routine that keeps your complexion comfortable at home can leave it tight, dull and thirsty after a week in the sun, a long day in an air-conditioned office or a night on a plane. This is seasonal dehydration, and it is rarely a sign that your skincare has failed. It is a sign that your surroundings are asking more of your skin than usual.

When skin feels tight, dull or dehydrated, the instinct is to add more: another layer, a richer cream, an extra step before bed. It feels intuitive, yet it rarely resolves the concern. Dehydrated skin is seldom short of product on its surface. It is struggling to retain water within.

Why layering matters for hydrationMany of us reach for a single product when our skin feels dry or dull, yet lasting hydration rarely comes from one step alone. Skin that holds on to water well has a healthy skin barrier, the "brick wall" of cells and lipids that keeps hydration and nutrients in while keeping irritants and bacteria out. When that barrier is compromised, trans-epidermal water loss increases and even the most generous moisturiser can struggle to keep up.

Understanding the difference between dehydrated skin and dry skin is essential for achieving a healthy complexion. Dehydration specifically describes a lack of water content within the skin, whereas dry skin typically stems from a deficit in natural oils. When the skin suffers from a lack of hydration, it can become vulnerable to trans-epidermal water loss, a process where water evaporates from the skin into the surrounding environment.

To understand why water escapes, we need to look at the outermost part of the skin. The epidermis is made up of epidermal cells, which form many different sublayers. At the very top sits the skin barrier, which works much like a brick wall. The cells act as the bricks, and they are bound together with lipids that act as the mortar.

Discover the science of deep cellular hydration with AMRA. Explore how low-molecular weight Hyaluronic Acid, supported by Green Caviar and Probiotics, prevents water loss for radiant, firm skin.

Discover the cellular science behind the Gold Intracellular Cleansing Balm, protecting skin architecture as it purifies.

There are numerous factors that take their toll on our skin through the cold months. It's key that we maintain the ultimate hydration levels

here’s a lot more to know about skin than just simply oily or dry, and misconceptions about dry skin in particular tend to become prevalent