Dry skin is not just about feeling tight or flaky — it is a barrier function problem. The outermost layer of the skin is not retaining moisture properly, either because of genetics, environment, or a depleted lipid matrix. The right ingredients target this directly: they attract water, hold it in, and repair the structural gaps in the barrier that are letting it escape.
Ceramides — the essential barrier repair ingredient
Ceramides are lipid molecules that make up roughly 50% of the skin barrier's lipid matrix. In dry and damaged skin, ceramide levels are measurably lower than in healthy skin. Replacing them topically — using a ceramide-containing moisturiser — directly rebuilds the barrier, reduces transepidermal water loss, and prevents the tight, itchy feeling that characterises dry skin. Look for ceramide NP, AP, or EOP in the ingredients list, ideally combined with cholesterol and fatty acids for a complete lipid mix.
Glycerin — the most reliable humectant
Glycerin is inexpensive, heavily researched, and highly effective for dry skin. Unlike hyaluronic acid, which mostly sits on the surface, glycerin penetrates into the outer layers of the skin and binds water there. It also has a direct effect on barrier function, helping skin cells retain moisture at the structural level. It is the single most common ingredient in dermatologist-recommended moisturisers and should be a staple for anyone with dry skin.
Squalane — the ideal dry-skin emollient
Squalane is a stable, lightweight oil derived from sugarcane or olives (or historically shark liver — avoid that). It closely resembles the skin's own sebum lipids and is absorbed without greasiness. As an emollient, it fills in the spaces between skin cells, softening rough texture and preventing moisture from evaporating. It is non-comedogenic, well tolerated by even sensitive skin, and works beautifully as the last step in a dry-skin routine or mixed into a moisturiser.
Panthenol — the calming, repairing B vitamin
Panthenol (provitamin B5) converts to pantothenic acid in the skin, where it promotes wound healing, stimulates cell turnover, and acts as a powerful humectant. It reduces inflammation, relieves itching, and accelerates barrier recovery — making it particularly valuable for dry skin that is also reactive or frequently irritated. It is found in many healing creams and is an excellent complement to ceramides.
Shea butter and plant oils
For very dry skin, heavier emollients and occlusives are necessary to prevent overnight moisture loss. Shea butter is rich in oleic and stearic acids and forms a semi-occlusive layer on the skin. Jojoba oil mimics sebum and absorbs cleanly. Rosehip oil provides linoleic acid, which is often depleted in dry skin. Applied as the last step at night, these create a physical barrier that traps hydration applied underneath.
What to avoid
- Fragrance and essential oils: Even natural fragrances irritate a compromised barrier and worsen dryness.
- High-concentration AHAs used daily: Exfoliation is fine occasionally, but daily use on dry skin strips the barrier further.
- Foaming cleansers with high surfactant loads: These strip natural oils. Swap for cream or oil cleansers.
- Alcohol-denat in leave-on products: Drying and barrier-disruptive at concentrations used in some toners.
- Very high-MW hyaluronic acid in dry climates: Can pull moisture from deeper skin layers if the air is very dry and nothing seals it in.
A simple routine for dry skin
- AM: Cream cleanser → glycerin + panthenol serum → ceramide moisturiser → SPF.
- PM: Oil or balm cleanser → rich ceramide moisturiser → squalane oil or shea butter on top.
- Weekly: A gentle lactic acid (5–10%) exfoliant to clear dry skin buildup without stripping.