A dollop of ivory cream beside an open jar

Ceramides, explained

Waxy lipids, in plain words.

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What they are

A dermatologist quoted in the AAD moisturizer guide describes ceramides as "waxy lipid molecules that help hydrate skin," and suggests looking for them on a moisturizer's ingredient list.

Where the AAD mentions them

In its tips for dry hands, the AAD lists lipids such as ceramides, humectants such as glycerin and hyaluronic acid, and occlusives such as mineral oil or petrolatum. On its dry skin treatment page, the AAD says that for excessively dry skin, a dermatologist will select a moisturizer as part of a treatment plan, with ingredients such as urea, ceramides, lactic acid, or glycerol.

Lipids and moisturizing

In its rosacea skin care tips, the AAD says moisturizing helps hydrate your skin by trapping water in it, and also restores essential lipids to your skin.

A cosmetic claim

The FDA says moisturizing is a cosmetic claim. We describe ceramides only as moisturizer ingredients, and make no treatment claims for them.

Prescription moisturizers

The AAD says some patients with excessively dry skin need a prescription moisturizer. That is a decision for a dermatologist.

Sources: American Academy of Dermatology (AAD), How to pick the right moisturizer for your skin; AAD, 4 skin care tips for your hands; AAD, Dry skin: Diagnosis and treatment; AAD, 7 rosacea skin care tips dermatologists recommend; FDA, Wrinkle Treatments and Other Anti-aging Products.

FAQ

Ceramide cream or lotion?

We do not pick. Our guide to lotion, cream, gel, and ointment explains how the AAD compares textures.

Do ceramides fix a damaged skin barrier?

We make no repair claims. A dermatologist quoted in the AAD moisturizer guide says to make an appointment with a dermatologist if dryness gets worse and becomes painful, cracked, bleeding, stinging, or very irritating.

General information, not medical advice. Before you use a new skin care product on your face, the American Academy of Dermatology suggests testing it on a small spot of skin, such as the bend of your elbow, twice a day for seven to 10 days. If your skin reacts, wash the product off and do not use it again. Follow the directions and warnings on the label. See a doctor or dermatologist about a rash, a skin reaction that does not go away, or any skin condition. If you have signs of a severe allergic reaction, such as shortness of breath or trouble swallowing, call 911.

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Three jobs, three names.

A glass dropper releasing a drop of clear gel

Hyaluronic acid, explained

A humectant, explained.

An open jar of rich cream on linen beside a wool throw

Moisturizer for dry skin

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Next: humectants, emollients, occlusives