Your skin is your body’s largest organ, and its outermost layer — known as the skin barrier — plays a critical role in protecting you from the outside world. This protective layer, also called the stratum corneum, acts as your skin’s first line of defense against environmental pollutants, UV radiation, bacteria, and irritants.

The skin barrier also helps retain moisture, keeping skin hydrated, comfortable, and resilient. When the skin barrier becomes damaged or weakened, moisture escapes more easily and irritants can penetrate the skin, which can lead to dryness, redness, irritation, and increased skin sensitivity.

Supporting and repairing the skin barrier is one of the most important steps for maintaining healthy, balanced skin, especially for people with sensitive or eczema-prone skin.

Eczema isn’t just something I’ve researched—it’s something my family has lived through.

Considering that my daughter’s struggle with eczema ultimately led me to develop gentle, clean skincare products and later start Kosmatology, it feels only fitting to share our story.

Our skin is the largest organ in the body and serves as the first line of defense against the outside world. But beyond being a physical barrier, the skin is home to a complex ecosystem known as the skin microbiome.

The skin microbiome is made up of trillions of microorganisms, including bacteria, fungi, and other microbes that naturally live on the surface of the skin. Scientists estimate that the skin microbiome may include over 1,000 different species of bacteria and dozens of types of fungi.

These microorganisms are not harmful—in fact, many of them are essential for healthy skin.

Understanding how the skin microbiome works can help explain why gentle skincare, balanced routines, and barrier-supporting ingredients are so important for maintaining comfortable, resilient skin.

If you have eczema, dermatitis, or sensitive skin, choosing the right skincare products can make a significant difference in daily comfort. Many cleansers contain ingredients that can strip natural oils or irritate already sensitive skin, which is why many people search for the best body wash for eczema, dermatitis, sensitive or dry skin.

Many dermatologists recommend gentle cleansers designed for sensitive skin because harsh detergents and synthetic fragrance can weaken the skin barrier and worsen irritation. Understanding how cleansers affect the skin barrier and what ingredients to look for can help you make better choices and support healthier skin over time.