Are Moisturisers Bad for Your Skin?
Moisturiser is the one product most of us use every single day without a second thought. It feels comforting, it smooths the surface of your skin, and it promises hydration in a jar. Many of my patients tell me they cannot leave the house without it.
When I completed my advanced skincare training, the module on conventional moisturisers surprised me, and it may surprise you too. Used occasionally, when your skin genuinely needs a little comfort, a moisturiser is a perfectly reasonable product. Depended on every day to hydrate and calm your skin, it may be doing the opposite of what you hope, and your skin can end up weaker and drier than when you started.
Let me explain what I mean.
What a Moisturiser Actually Does
A conventional moisturiser is a comfort product, not a correcting one. It contains much the same components as the surface of your skin: water, lipids and proteins. Sitting on the surface, it can temporarily improve texture and plump the skin, which softens the look of fine lines for a few hours.
That is the key word: temporarily. The smoothing and plumping you see after applying moisturiser is a surface effect. It does not change how your skin behaves, and it does not add hydration in any lasting sense. In skincare we sometimes call this artificial hydration: the skin looks hydrated because it is sitting under a layer of moisture, not because it is producing any of its own.
None of this makes moisturiser a bad product. It makes it a quick fix, and quick fixes have a cost when they become daily habits.
When Comfort Became the Goal
Skincare marketing has spent decades teaching us that "gentle", "non-irritating" and "comforting" are the features that matter most. Any product that causes visible exfoliation or redness is treated with suspicion, even when that reaction is a normal, temporary part of the skin renewing itself.
I see the effect of this in clinic. Patients who try active ingredients, retinol for example, often stop within the first fortnight because their skin feels a little dry or flaky while it adjusts. They never reach the stage where the ingredient starts to genuinely improve their skin, because the discomfort felt like failure.
The comfort-first approach has another consequence, and it is the one I want to focus on here.
'Sensitive Skin' or Skin Weakness?
A striking number of people now describe themselves as having sensitive skin. For some, this is absolutely real: true clinical dryness, genetic conditions and certain medical diagnoses genuinely require careful, supportive skincare.
For many others, what feels like sensitivity is something different. The results-led school of skincare developed by Dr Zein Obagi, the dermatologist behind ZO Skin Health, describes it as skin weakness: skin that has lost resilience because it has been over-protected and under-stimulated.
Here is the cycle as that philosophy sees it, and as I see it play out in clinic. Your skin feels dry, so you apply a richer moisturiser. The richer product feels soothing, so you keep using it. Over time your skin seems to need it more, not less, and reacts more readily to everything else. Rather than asking why the skin is struggling in the first place, the routine keeps patching the symptom. Some practitioners describe the result as acquired sensitivity: skin that has become sensitive through the very products meant to keep it comfortable.
What Daily Dependence May Do Over Time
This is the part of my training that changed how I use moisturisers in my own practice. In fact I have not used a moisturiser for many years. Research and clinical experience in results-led skincare suggest four effects from long-term daily reliance on conventional moisturisers.
1. Your skin may dial down its own hydration. When a moisturiser keeps the surface of the skin constantly saturated, that flood of surface moisture can disrupt the signals your skin uses to regulate itself. The message the skin receives is that hydration is plentiful, so natural hydration from within is dialled down. The result over time can be skin that depends on the next application to feel normal.
2. Natural exfoliation slows down. Healthy skin constantly sheds dead cells from its surface and replaces them with fresh ones. Occlusive layers of moisturiser can interfere with that shedding, so dead cells accumulate on the surface instead. That accumulation appears to signal the deeper layers of the skin to slow the production of new cells, and a slower turnover is exactly what dull, rough, tired-looking skin is made of.
3. The barrier can be compromised. This is the counterintuitive one. Long-term reliance on moisturisers has been associated with a weaker barrier function, increased water loss through the skin, and skin that is drier and more reactive between applications. The comfort product, used daily for years, may leave the skin less able to look after itself.
4. Visible ageing may speed up. Because skin renewal and barrier repair are cellular processes, suppressing them over the long term may contribute to the early signs of ageing. I am cautious about dramatic claims here, but the logic is consistent: skin that renews itself more slowly tends to look older sooner.
Who Genuinely Needs a Moisturiser
None of this means you should throw your moisturiser away. There are people and moments where one is exactly right:
True clinical dryness (xerosis) or a diagnosed skin condition
Skin recovering from a procedure, or adjusting to a prescribed treatment plan
Cold weather, hard water, a harsh commute, a day your skin genuinely feels tight
As part of a planned routine alongside active ingredients, where a good moisturiser supports the work the actives are doing
The problem is not the product. It is depending on one every day to fix a symptom, without ever addressing why the symptom is there.
A Better Way to Care for Your Skin
In my clinic I take the opposite approach to the comfort-first routine. Rather than smoothing over symptoms, I look at how your skin is functioning and build a plan that restores it:
Stimulate renewal properly. Ingredients like a true retinol are introduced gradually, at the right strength, with realistic expectations, so your skin builds tolerance instead of abandoning ship. Done well, this is one of the most evidence-supported ways to improve skin quality over time.
Protect every day. Daily SPF does more for your skin's long-term appearance than any moisturiser ever will.
Hydrate from within, not just on top. Treatments such as skin boosters deliver hydration into the skin itself, where moisturiser creams cannot reach. I compared the two most popular options in my guide to Profhilo versus Skinvive.
Use medical-grade products strategically. The products I recommend in my online shop are chosen for what they do for skin function, not how soothing they feel on day one, and I will tell you exactly how and when to use them.
Frequently asked questions
Can moisturiser make dry skin worse?
For skin that has become dependent on daily moisturising, yes, that is possible. Constant surface saturation can reduce the skin's own hydration and slow natural exfoliation, leaving it drier and rougher between applications. If your skin seems to need more moisturiser each month, that pattern itself is worth investigating.
Is sensitive skin a real condition?
Sometimes, yes. True dryness, genetic conditions and certain diagnoses are real and need supportive care. But for many people, what feels like sensitivity is better described as skin weakness: skin that has lost resilience. A consultation is the way to tell the difference, because the two call for opposite routines.
Should I stop using moisturiser altogether?
No, and I do not recommend stopping anything abruptly. Occasional use when your skin needs it is fine. If you are applying it daily out of habit, the goal is to gradually rebuild your skin's own function so the product becomes a choice rather than a dependency. That is a transition I plan with patients over weeks, not a cold-turkey week.
What should I use instead?
There is no single swap, because the answer depends on what your skin is actually struggling with. For most people the plan involves a gentle cleanser, daily SPF, carefully introduced active ingredients, and hydration support from within. This is exactly what I cover in a first consultation.
If your skin has been feeling drier, duller or more reactive than it used to, it may not need a richer cream. It may need a plan. Book a consultation at my Loughborough clinic and we will work out what your skin is really asking for.