Skin Concerns

Skin Barrier

A healthy skin barrier is the foundation of calm, hydrated and resilient skin — and becomes especially important as skin ages.

Strong foundational evidenceHow we rate evidence

What is it?

The skin barrier is located mainly in the outermost layer of the skin, the stratum corneum. It helps retain water and protects against irritants and environmental exposure.

What can it help with?

Better barrier function can reduce dryness, tightness and irritation. A stable barrier may also make active ingredients easier to tolerate.

What does the research say?

Ageing is associated with changes in skin lipids and barrier function that contribute to dryness. Clinical literature supports gentle cleansing and regular moisturization, particularly lipid- and ceramide-containing products, to help improve dryness and barrier function.

How to use it

Use a gentle cleanser, avoid unnecessary aggressive exfoliation and moisturize regularly. For dry or sensitive skin, products containing ceramides, glycerin and other humectant or barrier-supporting ingredients can be useful.

What can it be combined with?

Barrier-supporting skincare fits almost any routine and is particularly useful alongside retinoids, acids and other active ingredients.

Who should be cautious?

Persistent cracking, rash, severe itching or inflammation may indicate a skin condition and should be assessed by a healthcare professional.

GlowOver40 Take

Barrier care may not be the most glamorous part of skincare, but it is often one of the most important. A stronger routine does not start with more actives — it starts with skin that can tolerate them.

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