Humectants
Help the outer skin layer hold water. Usually strongest inside a formula that also softens and seals.
Twelve evidence-led field guides explain what familiar moisturiser ingredients do, where the research stops and how to choose a complete cream without chasing trends.
Explore the ingredient library ↓Help the outer skin layer hold water. Usually strongest inside a formula that also softens and seals.
Fill rough spaces and improve flexibility, slip and comfort.
Reduce water loss with a protective film. Richer is useful—not automatically better everywhere.
Learn what each ingredient does, where the evidence is strongest, who may need extra caution and which reviewed creams contain it.
Ingredients that help the outer skin layer hold water.
Urea is part of the skin’s natural moisturising system.
Read the field guideHyaluronic acid is a water-binding polysaccharide used as a humectant.
Read the field guideGlycerin—also called glycerol—is a humectant that helps the outer skin layer hold water.
Read the field guideLipids and supporting actives used in barrier-focused formulas.
Ceramides are waxy lipids naturally present between cells in the outer skin layer.
Read the field guideNiacinamide, also called nicotinamide, is a vitamin B3 derivative used in moisturisers for barrier support and broader cosmetic benefits.
Read the field guideSqualane is a stable hydrogenated hydrocarbon used as a lightweight emollient.
Read the field guideIngredients that reduce water loss and add a protective finish.
Petroleum jelly is purified petrolatum, an occlusive ingredient that forms a semi-occlusive surface film and reduces water loss.
Read the field guideLanolin is a waxy material derived from sheep’s wool and used to soften skin and strengthen ointment texture.
Read the field guideBotanical emollients and soothing agents, with allergy context included.
Shea butter is a plant-derived fat used as an emollient and texture builder.
Read the field guideColloidal oatmeal is finely milled oat prepared to disperse in topical products.
Read the field guideAloe vera gel is a botanical ingredient used for a cooling, soothing feel.
Read the field guideVirgin coconut oil is an emollient plant oil that can improve hydration and surface lipids in mild-to-moderate xerosis.
Read the field guideA single INCI name cannot tell you its concentration, delivery, pH, stability or how the finished moisturiser feels. Our guides explain plausible function and published evidence, then return the decision to the complete formula.
Skin conditions need their own context. Dryness support is not equivalent to treating eczema, psoriasis, rosacea, infection or a non-healing wound.
Read our non-fear-based safety guide →Match moisturising support to the condition and know when a cream is not enough.
Explore conditions →COMPARE THE CATEGORYSee ten-product shortlists built around use case, formula and value.
Compare creams →CHECK THE PRODUCTRead formula facts, texture context and limitations for individual products.
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