Which one should you choose?
| What matters | Glycerin moisturizer | Urea moisturizer |
|---|---|---|
| Hydration | Attracts and binds water in the skin. | Attracts and holds water in the outer skin layer. |
| Practical choice | An option for routine hydration, including in eczema creams. | Useful when dryness includes thickening and scale; also used for moderately dry skin. |
| Strength | Choose the complete moisturizer, not just the ingredient. | 5% is used for moderate dryness or maintenance; 10% for intensive treatment of very dry, thickened skin. |
| Texture | Depends on whether the product is a lotion, cream or ointment. | Also depends on the complete formula, not the urea percentage alone. |
| Sensitive areas | Humectants used alone can sting; choose a formulated moisturizer. | Often stings on scratched, fissured or inflamed skin. |
You do not have to choose one ingredient exclusively: creams containing both 5% urea and 5% glycerol exist. Glycerol is another name for glycerin. For very dry, thickened hands or feet, 10% urea provides a keratolytic action, meaning it helps loosen built up surface skin. Once that short treatment is finished, a standard emollient or 5% urea can be used for maintenance when needed.23
Hard, callused heels are a separate case from ordinary dry skin. Heel treatments containing 25% urea are used for initial treatment, with 10% creams used afterward for maintenance. Do not treat the strongest heel balm as the default moisturizer for every dry area.4
The rest of the moisturizer matters
Humectants draw in water. Emollients soften and smooth dry skin, while occlusives such as petrolatum or dimethicone slow moisture loss. Look for a moisturizer that combines these jobs rather than applying a humectant alone. Choose by formula rather than price, because the receipt is not a skin treatment.5
A lotion can suit mild facial dryness or hairy areas; a cream suits moderate dryness, and an ointment suits very dry, scaly patches. Ointments lock in moisture most effectively but are greasy enough to involve your bedsheets in the routine. For sensitive skin, choose fragrance free products without botanical fragrances, and keep the ingredient list simple.135
How to use either moisturizer
- 1Wash with a gentle, non soap cleanser and lukewarm water. Keep showers to five to ten minutes rather than soaking in hot water.
- 2Pat dry without removing every trace of water. Apply moisturizer to damp skin within three minutes of leaving the shower.
- 3Use moisturizer after every bath or shower and at other times as needed. For eczema, apply a moisturizing cream or lotion twice daily.
- 4If an eczema lotion or cream does not seal in enough moisture, lightly apply petroleum jelly over it. An ointment already provides that occlusive layer.
How long does improvement take?
For dry feet in people with diabetes, twice daily use of urea creams or a cream containing 15% glycerol and paraffin helped relieve dryness over at least two weeks. That is a useful timeframe for those foot treatments, not a deadline for every glycerin or urea moisturizer. Neither ingredient has a universal finishing date for dry skin.6
When should you change course?
Stop using a moisturizer that causes burning, persistent stinging or a new rash. Keep urea creams away from your eyes. If consistent moisturizing and gentler washing do not help, see a healthcare provider. If you have diabetes with reduced foot sensation or poor circulation, arrange regular professional foot checks rather than managing worsening cracks with moisturizer alone.2356
Where this answer comes from
- 1Best Creams and Lotions for Eczemahealth.clevelandclinic.org
- 2netFormularytaysideformulary.scot.nhs.uk
- 3Dermatitis. Emollientsdermnetnz.org
- 4netFormularynottinghamshireformulary.nhs.uk
- 5Choosing the Best Moisturizer for Dry Skinhealth.clevelandclinic.org
- 6Optimal foot skin care for diabetes-related foot ulcer prevention: scoping reviewpmc.ncbi.nlm.nih.gov
