Understanding Emollients

Your skin acts as a shield by generating a protective barrier (composed of oil, lipids, and dead skin cells) that seals out viruses, bacteria, and other microscopic invaders. This dual-purpose layer not only blocks harmful elements but also retains your skin's natural moisture, ensuring it appears healthy and feels smooth.

However, aside from external factors like wind, sun exposure, or cold winter air, many of our daily habits can disrupt or weaken this essential oily protective layer on our skin.

Frequent bathing or excessive scrubbing can remove the essential oils that safeguard our skin. Certain medications may also lead to skin dryness as a side effect. While dry skin alone isn’t typically a reason to stop treating a more serious condition, this fact doesn’t alleviate the discomfort of itchiness or flakiness.

What exactly are these flakes? As skin cells mature, they flatten (partly by losing their nucleus) and move toward the skin’s surface. There, they combine with other flattened cells to create a protective layer. Normally, these cells shed in small groups, but dry skin occurs when these groups form larger clumps, resulting in visible skin flakes.

Dry skin is both a standalone issue and a potential indicator of skin conditions like atopic dermatitis (a common skin allergy) or psoriasis (characterized by dry, flaky skin due to accelerated skin cell turnover). It can also signal other health concerns, such as diabetes or kidney disease.

Advanced treatments for these conditions may include oral or topical medications like corticosteroids or calcineurin inhibitors, which reduce the skin’s immune response to curb inflammation. While effective, these treatments can carry side effects, especially with prolonged use. To mitigate these risks, doctors may incorporate emollients into the treatment plan. Even when used alone, emollients effectively hydrate, soften, and repair the skin’s outer barrier, offering protection against environmental factors.

But what precisely is an emollient?

Emollients to the Rescue

Moisturizers fall into two main types: humectants (such as glycerin soap, which draws water from the air) and emollients.

Emollients work by directly providing moisture to the skin. Unlike humectants, they infuse hydration through their own composition. Ingredients like carrier oils, urea, and synthetic compounds such as silicone oils and isopropyl myristate are common emollients found in product labels. A single moisturizer often combines multiple emollients and sometimes humectants as well.

Emollients are primarily categorized into two types: oil-based and water-based. Oil-based emollients feel greasier, remain visible on the skin longer, and provide lasting hydration. Water-based emollients, on the other hand, are lighter, easier to apply, and less messy.

Dry skin often stems from a compromised skin barrier. When the body detects this issue, it may trigger an immune system response, leading to inflammation and redness. Applying a moisturizer with emollients helps repair the outer barrier, calming the immune system and reducing inflammation.

A key role of emollients is to lock moisture into the skin. However, improper application can trap moisture outside the skin, worsening dryness. To avoid this, apply emollient cream when your skin is still slightly damp, such as after bathing. This ensures the external moisture is sealed beneath the emollient layer, preventing dry skin from being trapped and blocking hydration.

Emollients not only hydrate and retain moisture but also minimize the need for stronger medications that may cause adverse effects, particularly with prolonged use. While your dermatologist can recommend the best treatment plan, using emollient creams correctly is a safe and effective immediate solution for dry skin.

For more details on emollients and skin care, continue to the next page.