When we talk about dehydrated skin, one ingredient comes up again and again: hyaluronic acid.
Hyaluronic acid, often called HA, has become so common in skincare that it is easy to dismiss it as just another trendy ingredient. It isn't. It is one of the most useful ingredients we have for supporting hydration, particularly when skin feels tight, depleted, sensitive, or compromised.
What Is Hyaluronic Acid?
Hyaluronic acid is a substance naturally present in our bodies, with a significant amount found in the skin and connective tissues.
In skincare, HA functions primarily as a humectant, meaning it attracts and holds water. Rather than supplying oil to the skin, it helps improve its water content.
This distinction is important because dry skin and dehydrated skin are not necessarily the same thing. Dry skin lacks oil, while dehydrated skin lacks water. Read about why skin hydration matters in my blog.
Even oily and acne-prone skin can become dehydrated, particularly after over-cleansing, excessive exfoliation, sun exposure, travel, dry weather, or the use of strong active ingredients.
What Does Hyaluronic Acid Do for the Skin?
When the skin is properly hydrated, it generally looks and feels smoother, softer, and more comfortable.
Hyaluronic acid can help:
- Increase skin hydration
- Improve the appearance of plumpness
- Reduce the feeling of tightness
- Improve skin smoothness
- Support a compromised or dehydrated skin barrier
- Help skin feel more comfortable when it is stressed or sensitized
Hydration is not reserved for dry skin, and this is one reason I use HA across different skin types.
Acne-prone, oily, mature, sensitive, and over-treated skin can all need water.
The Importance of Molecular Weight
Not all hyaluronic acid behaves exactly the same way.
Different molecular weights work at different levels of the skin. Larger forms primarily remain near the surface, where they help bind water and support moisture retention, while smaller forms can interact differently with the upper layers of the skin.
This is why I prefer thoughtfully formulated products rather than choosing something simply because “hyaluronic acid” appears on the ingredient list.
Our Hyaluronic Acid Serum, for example, uses three molecular weights of HA to provide more comprehensive hydration support.
How to Use Hyaluronic Acid Correctly
Hyaluronic acid works best as part of a complete hydration routine.
Apply it after cleansing or toning and follow with an appropriate moisturizer to help maintain that hydration.
And remember: more isn't necessarily better.
You don't need multiple HA serums layered on top of one another. Hyaluronic acid is already present in many well-formulated moisturizers, serums, and masks.
Sometimes the better approach is simply choosing the right formulation for what your skin needs at that moment.
How I use Hyaluronic Acid in Skincare
Hyaluronic Acid Serum
For skin that specifically needs more water, Hyaluronic Acid Serum is the most direct approach. It is a lightweight, concentrated hydration serum formulated with multiple molecular weights of hyaluronic acid to help attract and retain moisture in the skin.
I particularly like it for dehydrated skin, but dehydration can occur in any skin type — including oily and acne-prone skin. It can be used morning and evening and followed with the appropriate moisturizer.
Hyaluronic Acid in Other Formulas
You don't necessarily need a separate hyaluronic acid serum in every routine. I use hyaluronic acid in many BIBA formulas because hydration is often one part of a larger skin concern.
Plant Stem Cell Serum with Peptides, for example, contains hyaluronic acid alongside peptides and other supportive ingredients. In this formula, HA provides hydration while the serum addresses multiple signs of aging and overall skin resilience.
Herbal Gel Mask
Herbal Gel Mask is one of my favorite ways to give dehydrated or stressed skin an extra dose of hydration. It combines hyaluronic acid with soothing botanical ingredients in a cooling gel that is particularly nice for skin that feels dry, sensitive, reactive or overheated.
It can be used as a traditional mask, but I especially like it as an overnight treatment. Apply a thin layer and leave it on while you sleep.
Hyaluronic acid is also found in several other BIBA products. There is no reason to layer multiple HA products simply for the sake of getting more hyaluronic acid. I choose the formula based on what the skin needs, with HA providing hydration as part of that treatment.
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Hyaluronic Acid Is About More Than Glow
We talk a lot about “glowing skin,” but good hydration goes beyond appearance. When skin is dehydrated, it can feel tight, uncomfortable and more easily irritated, and fine lines can become more noticeable.
Hyaluronic acid is one of the ingredients I rely on to help maintain adequate water in the skin. I use it frequently in the treatment room and include it in many of my formulas because virtually every skin type can benefit from proper hydration.
