Dry Skin Isn’t Just a Hydration Problem. This is one of the questions we care about most.

f you have very dry skin, you probably know the cycle. You apply moisturizer in the morning and your skin feels comfortable. A few hours later, the tightness returns, so you apply it again. Sometimes you repeat this several times throughout the day. This can become particularly noticeable during perimenopause and menopause, when skin that was once relatively easy to moisturize begins behaving differently.

We use the word moisturizer as though moisturizing were a single biological job, but several different processes contribute to whether skin feels hydrated and stays that way. A formula can be very good at the first and still leave someone feeling dry several hours later if the second and third are not adequately addressed. This is why repeatedly adding another hydrating serum or moisturizer does not necessarily solve persistent dryness. You need water, the structure that helps contain it, and, for very dry skin, sometimes an additional layer that helps keep it from escaping.

Persistent dryness is not necessarily a problem of insufficient hydration. It can also be a problem of how water is being bound, how the barrier is functioning, what lipids are available at the surface, and how effectively that water is being retained. Understanding those distinctions changed the way we think about formulating for very dry and hormonally changing skin.

YOUR SKIN IS CONTINUOUSLY LOSING WATER

Water is constantly moving from within the body through the epidermis and into the surrounding environment. This is called transepidermal water loss, or TEWL. It is a normal physiological process; healthy skin does not prevent it completely, but regulates it.

The stratum corneum plays an important role in that regulation. Corneocytes are surrounded by an organized extracellular lipid matrix composed largely of ceramides, cholesterol and fatty acids. When the organization or composition of this barrier changes, so can the skin’s ability to regulate water loss. This is why repeatedly adding hydration is not necessarily the same as solving persistent dryness.

PERIMENOPAUSE AND MENOPAUSE CHANGE THE EQUATION

Research comparing pre- and postmenopausal skin has identified changes in the lipids of the stratum corneum, including lower ceramide levels and shorter average ceramide chain lengths in postmenopausal women. Estradiol levels have also been associated with aspects of ceramide composition. That matters because ceramides are not simply ingredients added to skincare products; they are part of the architecture of our own permeability barrier.

Other changes can occur at the same time. Sebum production tends to decline with age and the postmenopausal hormonal environment. Glycosaminoglycans involved in the skin’s relationship with water can change. Collagen decreases, skin becomes thinner, and its mechanical properties change. What we experience simply as dryness may therefore be the cumulative effect of changes across several physiological systems.

WHY HYALURONIC ACID DOESN’T WORK FOR EVERYONE

This also helps explain why some people with very dry skin are underwhelmed by hyaluronic acid serums. Hyaluronic acid is a humectant. In a topical formula, it can help increase water binding within the stratum corneum and temporarily make skin appear plumper and feel more hydrated. For many people, that is useful.

But humectancy is only one part of maintaining hydrated skin. Hyaluronic acid does not, by itself, replace ceramides and other barrier lipids, nor is a typical HA serum particularly occlusive. If the problem involves lipid depletion or poor moisture retention, another humectant may improve hydration without addressing why that hydration doesn’t seem to last.

The common claim that hyaluronic acid simply “pulls water out of your skin” in a dry climate is an oversimplification. The more useful point is that a water-binding serum without sufficient emollience or occlusion may simply be incomplete for someone with very dry skin. HA may be doing its job perfectly well; it just may not be the only job your skin needs done.

FOR VERY DRY SKIN, WE THINK ABOUT THREE THINGS

Very dry skin is not simply skin that needs more moisturizer. We think about three distinct but interconnected functions: water, structure and retention. Humectants help attract and bind water within the stratum corneum. Barrier lipids help maintain the structure that regulates how easily that water can leave. Occlusives create a more water-resistant surface that helps slow its escape. A routine can address one of these very well and still leave skin feeling dry if the others are missing.

For very dry skin, the logic is therefore relatively simple: bind the water, support the structure that contains it, and, when necessary, slow its escape. That’s the architecture we designed around.

A) WATER: HUMECTANTS HELP BIND IT

Humectants are ingredients that increase water binding within the stratum corneum, but they do not all behave in exactly the same way. Glycerin is a small, highly effective humectant that penetrates the stratum corneum and increases its water content. Sodium PCA is the sodium salt of PCA, a component of the skin’s own Natural Moisturizing Factor—the mixture of small water-binding substances within corneocytes that helps keep them hydrated. Saccharide isomerate, known commercially as Pentavitin®, is a carbohydrate-based humectant with an affinity for the stratum corneum and is used to provide more sustained hydration.

Hyaluronic acid is different. It is a much larger water-binding molecule, and particularly in its higher molecular-weight forms, much of its topical activity occurs at or near the skin’s surface, where it can form a hydrated film and temporarily increase plumpness and hydration. It can be an excellent humectant, but we don’t consider it the default answer to persistent dryness. In formulas such as BUFFÈRE™, we instead use complementary humectants including Sodium PCA, saccharide isomerate, panthenol and glycerin within a broader barrier-focused formulation. The question for us is not which single ingredient can hold the most water, but what combination makes sense for skin that repeatedly struggles to remain hydrated.

B) STRUCTURE: BARRIER LIPIDS HELP CONTAIN IT

Water binding is only part of the equation because the stratum corneum is itself a highly organized lipid structure. Corneocytes are surrounded by an extracellular matrix composed principally of ceramides, cholesterol and fatty acids, and the composition and organization of those lipids are fundamental to barrier function and the regulation of water loss.

This becomes particularly relevant during and after the menopausal transition. Research has identified differences in the ceramide composition of postmenopausal skin, including lower ceramide levels and shorter average ceramide chain lengths. For skin experiencing persistent dryness in this context, we are interested not only in adding humectants but also in supporting the lipid environment responsible for containing that hydration.

This is where LAMELLARE™ sits within the system. It combines ceramides NP, AP and EOP with cholesterol and complementary lipid-rich materials, alongside its humectant and peptide systems. It is not simply intended to put more water into dry skin. It was designed around the fact that the structure responsible for regulating that water matters too.

C) RETENTION: OCCLUSIVES HELP SLOW ITS ESCAPE

Even after supplying humectants and barrier lipids, very dry skin may benefit from another function: occlusion. Occlusive materials form a more water-resistant layer at the surface, physically reducing the rate at which water evaporates. They are not performing the same job as a humectant or a ceramide, which is precisely why applying a final occlusive layer can feel very different from simply applying another layer of moisturizer.

This is the role of BASTINA™ within the Layland Method™. Its concentrated lipid architecture combines Agave, Yucca, Opuntia, Fouquieria, Larrea and Abronia, botanicals associated with the water-limited landscapes of the North American desert. Their inclusion reflects our interest in biological systems that have evolved under conditions of extreme environmental dryness, while the actual occlusive function of the formula comes primarily from its lipid-rich architecture.

A SYSTEM APPROACH

In our Layland Method beta testing, multiple participants with very dry, sensitive and peri- or postmenopausal skin reported that by approximately the fourth day their skin felt noticeably different, more hydrated, more comfortable and, in most cases, visibly naturally glowier. The early changes could plausibly reflect several things happening together. Humectants can change stratum-corneum hydration relatively quickly. Emollients and occlusives can change softness and water loss from the first applications. Lipid-rich formulas can alter the feel and appearance of a dry surface, while controlled exfoliation can change surface smoothness and light reflection. We can say that changing several conditions associated with dry skin at the same time may feel very different from repeatedly applying another layer of moisturizer.