Skin Atlas
Definition & Application
An archive of mapped terms.
Classified within the context of modern skincare.
Urea: Effects, Application, and Benefits for Dry Skin
Urea, also known as carbamide, is a natural component of the skin and one of the most effective moisture-binding substances in dermatocosmetics. Especially for dry and flaky skin, it can sustainably support moisture balance.
TABLE OF CONTENTS
What is Urea?
Urea is a natural component of the skin's moisture-regulating system and is formed in the body as a metabolic product. It is part of the Natural Moisturizing Factor (NMF), a complex that regulates moisture in the stratum corneum. In cosmetics, synthetically produced urea is used to care for dry and rough skin and to support the skin barrier – according to AOK, it is considered a particularly well-tolerated active ingredient for daily use.
How does Urea work on the skin?
Urea acts as a humectant: It draws moisture into the upper layers of the skin and stores it there. At the same time, it strengthens the skin barrier's protective function and reduces transepidermal water loss. In dry skin, the natural urea content is often reduced – external application via skincare products can compensate for this deficiency.
As a natural component of the NMF, the skin inherently recognizes urea – when applied externally, it can continue to work where the body's own supply ends.
Overview of Benefits and Effects
- Moisture Retention: Urea binds water in the skin, leading to a visibly smoother and softer skin surface, as described by NetDoktor.
- Strengthening the Skin Barrier: Urea supports the regeneration of the protective barrier and helps reduce moisture loss due to external influences.
- Keratolytic Effect: In higher concentrations, urea has a gentle exfoliating effect – it loosens hardened skin cells and smooths rough, flaky areas.
- Soothing Effect: Urea can soothe irritated and sensitive skin and is often used for eczema.
Concentration and Application
The effect of urea largely depends on the concentration used:
- 2–5%: Suitable for daily care of slightly dry skin on the face and body.
- 5–10%: Particularly effective for dry, flaky skin.
- 10–20%: Recommended for very dry or hardened skin, e.g., on elbows and heels.
Urea is generally well tolerated. For sensitive skin, it is advisable to start with lower concentrations and gradually increase the application. Applying to cleansed skin enhances its effectiveness.
Combination with other active ingredients
Urea can be effectively combined with other moisturizing and barrier-strengthening active ingredients. The combination with ceramides is particularly effective: While urea draws moisture into the skin, ceramides seal the barrier and keep it there. Also, in combination with glycerin or hyaluronic acid, urea contributes to an enhanced moisturizing effect.
Who is Urea suitable for?
Urea is particularly suitable for people with dry or very dry skin. It can also be used as a supportive treatment for conditions such as neurodermatitis, psoriasis, or xerosis. Normal and combination skin can benefit from low concentrations as part of daily moisturizing care. For facial care and sensitive skin, concentrations up to 5% are generally well suited.
Frequently Asked Questions about Urea
What exactly does urea do in skincare?
Urea binds moisture in the skin, strengthens the skin barrier, and in higher concentrations, is used to gently loosen hardened skin cells. It is particularly effective for dry, flaky, or hardened skin.
Which urea concentration is suitable for the face?
For the face, concentrations between 2 and 5% are suitable. They support moisture supply without irritating the skin. Higher concentrations are typically recommended for body areas like feet or elbows.
Can urea be used daily?
Yes, urea is suitable for daily use. Low concentrations of 2–5% can be used morning and evening to stabilize the skin's moisture balance long-term.
Conclusion
Urea (carbamide) is a proven and versatile active ingredient for dry skin. As a natural component of skin moisture, it reliably supports moisture retention, strengthens the skin barrier, and smooths rough skin areas. Those who want to work on the skin barrier long-term will find urea – combined with complementary active ingredients such as ceramides – a solid foundation for daily care.
References
- AOK – Skincare with Urea
- NetDoktor – Urea in Skincare
- Deutsche Apotheker Zeitung – Urea for Dry Skin
