How to treat dry patches — the cause, not the symptom.

Dry patches are one of the most common skincare concerns, and one of the most consistently misunderstood. The instinct when skin feels dry is to add moisture — a heavier cream, a hydrating serum, a richer oil. This addresses the symptom while missing the cause. Most dry patches are a barrier problem: the skin's lipid matrix is compromised, and it is losing water faster than it can retain it. The correct intervention is barrier repair, not hydration loading.

What dry patches actually are

A dry patch is a localised area of the skin where transepidermal water loss (TEWL) is elevated. The stratum corneum — the outermost skin layer — is composed of flattened skin cells embedded in a lipid matrix of ceramides, fatty acids, and cholesterol. When that lipid matrix is depleted or disrupted, the barrier becomes permeable. Water escapes. The skin in that area becomes dry, rough, tight, and often flaky.

This is structurally different from dehydration, which refers to a temporary lack of water in the skin layers and responds to hyaluronic acid and humectant-rich formulas. Dehydration is a transient state. A compromised barrier is a structural issue, and it requires structural repair — specifically, replenishing the lipids the barrier needs.

What causes dry patches

Over-cleansing. Cleansing with surfactants strips sebum and disrupts the acid mantle. A gentle, low-pH cleanser used once daily (in the evening) is usually sufficient. Double-cleansing in the morning, or using foaming cleansers with high-pH formulations, commonly causes or worsens dry patches, particularly around the mouth, jaw, and cheeks.

Active overuse. Retinoids, AHAs, BHAs, and benzoyl peroxide are all capable of producing or worsening dry patches when used too frequently, at too high a concentration, or on a barrier that is already compromised. The classic error is adding a new active during winter — when ambient humidity is low and TEWL is naturally higher — and attributing the resulting dry patches to the season rather than the ingredient.

Low ambient humidity. Cold air holds less moisture. Heated indoor environments further reduce humidity. In low-humidity conditions, the skin loses moisture to the environment more readily, and humectants like hyaluronic acid can draw water out of the skin rather than the air if applied without an occlusive to seal them in.

Physical disruption. Friction from towels, pillowcases, or over-exfoliation removes lipids from the stratum corneum mechanically. Scrubbing the face with a textured cloth is the most common form of inadvertent barrier disruption that produces dry patches.

The repair protocol

Step 1: reduce or pause actives. If dry patches appeared after introducing a new active or increasing frequency, pause it. The barrier cannot repair while it is being repeatedly disrupted. Two weeks off a retinoid or exfoliating acid is usually sufficient for a mild disruption to resolve.

Step 2: simplify the routine. During barrier recovery, a three-step routine is the most that is useful: a gentle cleanser, a barrier-repairing moisturiser, and SPF in the morning. Adding serums, essences, or treatments during barrier disruption increases the chance of sensitivity reactions and delays recovery.

Step 3: apply a barrier-repairing moisturiser. Look for formulations containing ceramides (ceramide NP, ceramide AP, ceramide EOP), fatty acids (linoleic acid, oleic acid, palmitic acid), cholesterol, and squalane. These are the constituent materials of the lipid matrix. A moisturiser that provides them in physiologically relevant ratios — rather than one that primarily delivers water — does the structural repair work. Apply while the skin is still slightly damp to improve absorption.

Step 4: use an occlusive on the driest areas. A small amount of a petrolatum-based or squalane-rich product applied to the dry patch after moisturiser creates a physical seal that dramatically reduces TEWL in that area overnight. This is the rationale behind slugging — applied selectively to dry patches rather than the entire face, it accelerates localised barrier recovery without clogging pores elsewhere.

Step 5: address the environment if relevant. A bedroom humidifier during winter months reduces the moisture differential between the skin and the ambient air, reducing overnight TEWL. It is not a substitute for a barrier repair protocol, but it supports it.

What does not help

Applying more hydrating serum to a dry patch caused by barrier disruption does not repair the barrier. Hyaluronic acid draws water to the skin but does not reseal the lipid matrix. It can temporarily improve the feel of tight skin, but without an occlusive or barrier-repairing moisturiser to seal the hydration in, the water will evaporate — often increasing the dryness.

Exfoliating a dry patch to remove flaky skin makes it worse. The flakes are corneocytes sitting at the surface. The barrier below them is already compromised. Removing them mechanically strips more lipids and exposes less mature cells. Hydration and barrier repair dissolve the flakes gradually; physical removal prolongs the disruption.

The timeline

A mild dry patch caused by a single disrupting event — a harsh cleanser, a new retinoid, an unusually dry environment — typically resolves within one to two weeks of barrier-focused care. A chronic dry patch that has persisted for months despite moisturising suggests an underlying skin condition (eczema, psoriasis, contact dermatitis) that warrants assessment by a dermatologist. The distinction is duration and whether the patch responds to barrier repair — if it does not, a clinical cause is likely.