Key Takeaway
Beta-glucan is a polysaccharide obtained from oats, yeast, and mushrooms that can help by forming a hydrating film on skin's surface and supporting dry, sensitive skin. Rather than competing with hyaluronic acid, it works well paired with it.
- It suits dry, sensitive skin and skin sensitized by active ingredients well
- Looking at the texture and what else is in the formula is more practical than focusing on the source
- Patch-test a new product on your inner arm before use
Beta-glucan is a moisturizing ingredient often found in soothing toners, ampoules, and creams. It's not as familiar as hyaluronic acid, but since it offers both moisture and soothing care, it's common in products made for sensitive skin. SKINROUTE breaks down what beta-glucan is, which skin it suits, and how to pair it with other moisturizing ingredients.
What Is Beta-Glucan?
Beta-glucan is a polysaccharide made of long chains of glucose. It's obtained from sources like oats, yeast, and mushrooms, and gains viscosity when it meets water, forming a thin, hydrating film on skin's surface. This trait is why it's frequently formulated into moisturizers and soothing products made for sensitive skin.
A 2023 review covering research on beta-glucan as a skin health ingredient describes moisture and soothing care as its most common uses. Since the raw material and concentration vary by study, though, it's appropriate to see it in cosmetics as a supporting ingredient that helps keep skin hydrated and comfortable.
Differences by Source
Depending on where beta-glucan is obtained, the way its glucose chains link together differs slightly, which affects the skin feel too.
| Source | Traits |
|---|---|
| Oat | A gentle feel, often used in soothing products |
| Yeast | A viscous, hydrating film, skin condition support |
| Mushroom | Formulated as a moisturizing support ingredient |
Beta-glucan from oat and yeast are the most widely used in cosmetics. If you're curious about oat as an ingredient itself, see the oat extract encyclopedia entry too. For everyday moisture and soothing, it's more practical to look at the overall formula and what else is included rather than the source.
What Beta-Glucan Helps With
| Skin condition | Beta-glucan's role |
|---|---|
| Dry, dehydrated | Keeps skin hydrated with a moisturizing film |
| Sensitive, irritated | Soothing care support |
| Weakened barrier | A moisturizing support paired with ceramide |
| Rough texture | Supports smooth, even texture |
It especially suits skin that needs soothing after irritation, and dry, sensitive skin. Oily skin can also use it comfortably in a light serum or gel formula.
Beta-Glucan vs. Hyaluronic Acid
These are the two moisturizing ingredients compared most often. Hyaluronic acid is naturally present in skin too, and it plays a key role in helping skin hold onto water. Beta-glucan's strength leans less toward filling in moisture and more toward forming a hydrating film and keeping sensitized skin comfortable.
Beta-Glucan vs. Hyaluronic Acid
| Beta-Glucan | Hyaluronic Acid | |
|---|---|---|
| What it is | A polysaccharide from oats, yeast, or mushrooms | A polysaccharide also naturally present in skin |
| How it moisturizes | Keeps skin hydrated with a viscous film | Draws in and fills with moisture |
| Strength | Moisture together with soothing care | A light, hydrating feel |
| Skin it suits | Dry, sensitive skin | Most skin types |
The two aren't competitors — they're complementary. A combination of filling in moisture with hyaluronic acid, and adding a hydrating film and soothing care with beta-glucan works well. What to watch for when using hyaluronic acid in dry environments is covered in The Hyaluronic Acid Guide.
How to Use Beta-Glucan
Beta-glucan can go into any moisturizing or soothing step — toner, serum, ampoule, or cream. Apply from light to heavy textures.
- Basic order: Hydrating toner → beta-glucan serum·ampoule → moisturizing cream
- During sensitive periods: Use as a moisturizing step for skin sensitized by retinol or exfoliating ingredients
- Paired with retinol: Works well as the moisturizing layer in The Retinol Sandwich Method, which sandwiches retinol between moisturizer
Ingredients That Pair Well with Beta-Glucan
- Beta-glucan
- A hydrating film, soothing care support
- Centella
- Soothes redness
- Panthenol
- Soothing and moisture
- Ceramide
- Replenishes the lipids that make up the barrier
- Hyaluronic acid
- Draws in and fills with moisture
Textures by Skin Type
- Dry, sensitive: A cream formula for soothing and moisture together. The American Academy of Dermatology (AAD) advises that a heavier texture like a cream moisturizes dry skin better than a lotion, and that a fragrance-free product is best.
- Sensitized skin: An ampoule or cream for soothing care after using active ingredients
- Oily, combination: A light serum or gel formula
What to Check When Choosing a Product
Check This Before Choosing a Beta-Glucan Product
- Beta-glucan isn't too far down the ingredient list
- It's paired with soothing and barrier ingredients like centella, panthenol, or ceramide
- The texture suits your skin type
- It doesn't have a long list of potentially irritating ingredients like fragrance or alcohol
- You're not relying on absolute claims like "instant soothing" or "complete barrier support"
Check a new product on your inner arm before applying it to your face. The AAD advises applying a coin-sized amount twice a day for 7–10 days and using it only if there's no reaction.
Frequently Asked Questions
Is beta-glucan better than hyaluronic acid?
It's not better or worse — they play different roles. Hyaluronic acid draws in and fills with moisture, while beta-glucan forms a hydrating film and supports soothing. Using them together is complementary.
What skin does beta-glucan suit?
It especially suits dry, sensitive skin and skin that needs soothing after irritation. Oily skin can also use it in a light serum or gel formula.
Can I use beta-glucan while using retinol?
Yes, it pairs well. Beta-glucan's moisture and soothing support can help skin that's dry and sensitized from retinol. Use it in the moisturizing steps before and after applying retinol.
Can I use beta-glucan cosmetics every day?
It's generally a gentle moisturizing ingredient that can be used daily. Still, responses vary by person, so patch-test on your inner arm first, and if redness or stinging continues, stop using it and consult a dermatologist.
Find the Right Care for Your Skin
Dryness and sensitivity are affected by more than just ingredients — cleansing habits, sleep, and indoor environment all play a part. SKIN100 Precision Skin Analysis uses over 100 survey questions to analyze 8 core factors — lifestyle habits, skincare habits, external environment, and more — to point out the habits that make your skin dry and sensitive.
References
- Sousa P, et al. β-Glucan extracts as high-value multifunctional ingredients for skin health: A review. Carbohydr Polym 2023
- Papakonstantinou E, et al. Hyaluronic acid: A key molecule in skin aging. Dermatoendocrinol 2012
- American Academy of Dermatology (AAD) — How to pick the right moisturizer for your skin
- American Academy of Dermatology (AAD) — How to test skin care products