Moisturiser is the most-used skincare product and one of the least understood. The marketing surrounds it with luxury and high prices, yet the science of how it works is well established and refreshingly simple — and it turns out that an effective moisturiser can be inexpensive, while an expensive one is not automatically better.
Understanding the three basic jobs a moisturiser can do lets you see past the packaging and choose what your skin actually needs.
The three jobs: humectants, emollients, occlusives
Moisturisers work through three types of ingredient, often combined. Humectants, such as glycerin and hyaluronic acid, draw water into the outer skin and hold it there. Emollients, such as many plant oils and fatty acids, smooth and soften by filling gaps between skin cells. Occlusives, such as petrolatum and certain waxes, form a light barrier that slows water escaping from the skin.
Most good moisturisers blend these to both add hydration and help the skin retain it. That combination — bringing in water and stopping it leaving — is essentially all a moisturiser needs to do, and it is not a job that requires exotic or costly ingredients.
Why price rarely predicts quality
Because the core ingredients that make a moisturiser work are inexpensive and widely available, a modestly priced product can be every bit as effective as a luxury one. Much of the price difference in premium moisturisers reflects packaging, fragrance, marketing and brand positioning rather than superior function. Independent comparisons repeatedly find affordable moisturisers performing as well as far pricier ones.
This is genuinely good news: caring well for your skin does not require expensive products. It requires the right kind of product used consistently, and that is available at every price point.
Matching moisturiser to your skin
The main thing to match is texture to skin type and season. Drier skin generally does better with richer creams higher in emollients and occlusives; oilier or acne-prone skin often prefers lighter, non-comedogenic gels or lotions that hydrate without heaviness. Skin can also change with the seasons, needing more in cold, dry weather and less in humidity.
If your skin is persistently irritated, very reactive, or has a condition like eczema, that is worth discussing with a professional, since the right choice can be more specific. But for everyday healthy skin, the rule is simple: pick a well-formulated moisturiser whose texture suits you, ignore the price prestige, and use it consistently.