Dry Skin vs Dehydrated Skin: What's the Difference?

These two get mixed up constantly, and it really matters, because they need different things. The short version: dry skin lacks oil, dehydrated skin lacks water. You can even have both at once. Here's how to tell them apart and what genuinely helps.

Dry skin: a skin type

Dry skin is a skin type, which means it's broadly how your skin behaves over time. It doesn't produce as much natural oil (sebum) as other skin types, so it can feel tight, look a little flat or flaky, and sometimes feel rough to the touch. Because it's a type rather than a temporary state, it tends to be a fairly consistent feature of your skin, though it can become more noticeable in winter or with age.

Dehydrated skin: a condition

Dehydrated skin is a condition, not a type, which means anyone can experience it, including oily and combination skin. It's a lack of water in the skin, and it often comes and goes depending on weather, central heating, travel, over-exfoliating, or simply not drinking enough. Dehydrated skin can look dull, feel tight despite being oily in places, and show up as fine, crepey lines that ease when you press the skin.

How to tell which you have

A useful clue: if your skin feels tight and looks flaky but isn't oily anywhere, you're likely looking at dryness. If your skin can be oily or break out yet still feels tight, dull or papery, dehydration is the more likely culprit. Many people are surprised to learn their oily skin is actually dehydrated, and that stripping it back with harsh products has been making things worse. If you're not sure, that's exactly the kind of thing a proper skin analysis sorts out.

What helps each

• For dryness, the focus is on replenishing oils and supporting the skin barrier, with richer, nourishing products and gentle, non-stripping cleansing.
• For dehydration, the focus is on getting water into the skin and helping it hold on to it, with hydrating ingredients (think humectants) and a barrier that's working well, plus easing off anything that's over-exfoliating.
• For both, a professional facial can give the skin a proper drink and reset, and we'll pair it with simple homecare so the improvement lasts. You can read more on our dry and dehydrated skin page.

An honest note

A good facial and the right routine make a real, visible difference to how comfortable and healthy your skin looks. That said, if your skin is very dry, persistently itchy, cracked or sore, or you think you may have a condition such as eczema or psoriasis, please speak to your GP or a dermatologist as well, as that's a medical matter rather than something a facial is for.

Common questions

Can oily skin be dehydrated?
Yes. Dehydration is a lack of water and can affect any skin type, including oily and combination skin. Stripping it back with harsh products often makes it worse.

How do I tell whether my skin is dry or dehydrated?
Skin that feels tight and looks flaky but is not oily tends to be dry, while skin that can be oily or break out yet still feels tight and dull tends to be dehydrated. A proper skin analysis settles it.

How do you treat dehydrated skin?
The focus is on getting water into the skin and helping it hold on to it, with hydrating ingredients and a healthy barrier, plus easing off anything that's over-exfoliating. A professional facial gives the skin a proper drink, and we'll pair it with simple homecare so it lasts.