What Is Dry Skin? (And Why Your Current Moisturiser Probably Isn't Fixing It)

Dry skin — or xerosis — affects millions of people in the UK, yet most people treating it are reaching for the wrong remedy. A £5 bottle of light lotion from the pharmacy shelf isn't solving the problem. To understand why, you need to know what's actually happening beneath the surface.

The Biology of Dry Skin

Your skin's outermost layer, the stratum corneum, acts as a physical barrier between you and the world. It's made up of dead skin cells (corneocytes) embedded in a lipid matrix — essentially cells in a sea of fats. That lipid matrix includes ceramides, cholesterol, and free fatty acids. When this matrix is intact, it holds moisture in and keeps irritants out.

In dry skin, this lipid matrix is depleted. The cells lose their ability to retain water, gaps form between them, and transepidermal water loss (TEWL) accelerates. The result: skin that feels tight, looks flaky, and can become itchy or sore.

Genetics, age, cold weather, central heating, hot showers, and harsh cleansers all contribute. But the root mechanism is the same — a lipid-deficient barrier that can no longer hold moisture.

Why Light Moisturisers Don't Work

Most high-street moisturisers are water-based. They deliver a burst of hydration that feels good immediately, but within an hour or two the water evaporates — and if the barrier isn't repaired, it takes even more of your skin's own moisture with it.

Humectants like hyaluronic acid and glycerin attract water to the skin surface, but without an occlusive layer to seal it in, they can actually pull moisture out of deeper skin layers in dry or cold environments. They treat the symptom, not the cause.

What dry skin actually needs is lipid replenishment — ingredients that physically restore the fats missing from the barrier: ceramides, fatty acids, and emollients that mimic the skin's own composition.

What Actually Helps

The most effective ingredients for genuinely dry skin include:

• Fatty acids — especially oleic and stearic acid, which mirror the skin's natural lipids
• Ceramides — the backbone of the lipid matrix
• Butyric acid — a short-chain fatty acid with anti-inflammatory properties that supports barrier repair
• Shea butter and plant oils — rich, occlusive emollients that slow water loss

Shatadhauta ghrita — washed organic ghee — contains all of these in a naturally biocompatible form. Used in Ayurvedic medicine for thousands of years, it is one of the richest sources of butyric acid and oleic acid found in skincare.

Matching the Remedy to the Problem

If your skin is genuinely dry — not just occasionally dehydrated — you need a cream that delivers lipids, not just water. Look for a formula that is rich without being greasy, absorbs slowly and deeply, and doesn't rely on synthetic film-formers to fake the feeling of moisturisation.

The test: does your skin still feel comfortable six hours after application, without reapplying? If not, your moisturiser isn't fixing the barrier. It's just masking it.