Journal / Trends
Beta-glucan in skincare: a gentle ingredient worth knowing.
Beta-glucan has moved from Korean skincare shelves into serums and barrier creams everywhere, often sold as a calmer alternative to hyaluronic acid. Here is what it is, what the evidence supports, and where it fits in a routine for dry or sensitive skin.
The short answer
Beta-glucan is a family of sugar-based molecules found in oats, yeast, mushrooms and grains, used in skincare as a hydrating, soothing-minded ingredient. Laboratory and animal research on wound healing is encouraging, but human studies of skincare products are few and small. In practice it is a reasonable hydrating step to try for dry, dehydrated or easily irritated skin, alongside a good moisturiser and sunscreen. It does not treat eczema, rosacea or a reaction; those belong with a doctor. As with any new product, patch test first and judge the whole formula, not just the ingredient on the front.
01 / The ingredient
What is beta-glucan in skincare?
Beta-glucans are polysaccharides, long chains of sugar molecules, that occur naturally in yeast, grains such as oats, and fungi, including mushrooms.[1] The same family of molecules is familiar from oat-based foods, but in skincare it is used for a different reason: researchers describe topical beta-glucan as moisturising, antioxidant and anti-inflammatory, and its use on skin has been growing.[1]
Not every beta-glucan is the same. The source and how it is processed change its properties,[1] so “beta-glucan” on one label is not necessarily identical to “beta-glucan” on another. Many products name the source, such as oat or yeast, in the ingredient list or the description.
Part of the trend comes from Korean skincare, where hydrating, soothing layers are a staple; Korean skincare routines: what to borrow and what to skip looks at that wider picture.
02 / The trend vs. the evidence
What beta-glucan can and cannot claim.
- What the trend says
- Beta-glucan hydrates better than hyaluronic acid, repairs the barrier, calms any redness and smooths wrinkles.
- What is known
- In a review of wound-healing research, laboratory and animal studies consistently reported benefits, and topical use is linked with moisturising and soothing effects.[1] In one penetration test on human skin, oat beta-glucan reached the epidermis and dermis despite its large molecular size, and a study of 27 people reported reduced wrinkle depth and roughness after 8 weeks.[2]
- The limits
- Human studies are few and small, and the review’s authors conclude that more human clinical studies are needed.[1] The wrinkle study was published as a short abstract, and the abstract does not mention a comparison group.[2] Wound-healing results also do not tell us what a cosmetic serum does on everyday skin.
So “better than hyaluronic acid” is not something the evidence can say. The American Academy of Dermatology (AAD) lists ingredients such as glycerin, hyaluronic acid, dimethicone, petrolatum and shea butter for dry skin.[3] Beta-glucan is not on that list, which does not make it useless; it makes it a supporting player that often sits in the same formula as these better-established ingredients. Hyaluronic acid or glycerin? covers the humectants it is usually compared with.
03 / Fit
Who beta-glucan may suit.
- Dry or dehydrated skin
- Skin that feels tight, rough or looks dull from lack of water. If you are not sure which you have, dry or dehydrated skin? helps tell them apart.
- Skin that reacts easily
- People who want hydration without strong actives, or whose routine has recently been too much. Simplify first; reintroducing products after irritation explains the order.
- Comfort around professional care
- A gentle hydrating step can fit the quieter days after a facial, if your practitioner agrees; see after a facial: keeping your home routine clear.
Often the real cause of tightness is earlier in the routine. If your face feels tight straight after washing, the cleanser may matter more than any serum; signs your cleanser is too harsh lists what to look for.
Dry, tight or reactive, and not sure what to change?
Before adding another soothing product, Skin Edit looks at your whole routine and what your skin may actually need, so the next step is a considered one.
Explore Skin Edit04 / Using it
How to use beta-glucan in your routine.
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Patch test first.
Even gentle products can cause reactions. The AAD suggests applying a new product to a small spot twice a day for seven to 10 days, and using it only if there is no reaction.[4]
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Use it as a hydrating step.
A beta-glucan serum or essence usually goes on after cleansing, on skin that is still slightly damp, and before moisturiser. The AAD advises applying moisturiser while skin is still damp.[3]
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Seal it in.
A serum alone rarely does the whole job for dry skin. The AAD notes that creams and ointments are more effective than lotions for dry skin.[3] If you are choosing that layer too, see choosing a skin barrier cream.
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Read the whole formula.
For dry, sensitive skin the AAD recommends products labelled fragrance-free, and avoiding fragrance and alcohol.[3] A soothing headline ingredient in a heavily fragranced product is not a gentle product.
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Look after the basics.
Short, warm showers, a gentle cleanser and a humidifier in dry indoor air are among the AAD’s tips for dry skin.[3] They often do more than a new serum. Why your skin feels tight after cleansing goes into the washing side.
05 / Boundaries
When soothing skincare is not enough.
Beta-glucan can make skin feel more comfortable. It cannot diagnose or treat a skin condition, and self-diagnosis is not reliable, because irritation, eczema and rosacea can look alike.
See a doctor or dermatologist if:
- skin becomes itchy, blistered, dry and cracked, which the NHS describes as contact dermatitis, and the symptoms are persistent, recurrent or severe;[5]
- dryness continues after following dermatologists’ basic tips, or may be linked to a condition such as atopic dermatitis;[3]
- a product causes a reaction that is severe or does not settle once you stop it.[4]
Swelling of the lips, mouth or throat, or difficulty breathing, needs emergency help straight away.
If your skin is simply easily upset and you want professional support, a gentle professional facial can be planned around that sensitivity; facial skin care describes what that involves.
A few common questions
Frequently asked questions.
What does beta-glucan do for skin?
It is used as a hydrating, soothing-minded ingredient. Research describes moisturising, antioxidant and anti-inflammatory effects, mostly from laboratory and animal studies, and human studies are few and small.[1]
Is beta-glucan better than hyaluronic acid?
The evidence cannot say that. Hyaluronic acid and glycerin are better-established ingredients for dry skin, and many products combine them with beta-glucan.[3] Choose by how the whole formula suits your skin.
Is beta-glucan good for sensitive skin?
Can I use beta-glucan with retinol or vitamin C?
Beta-glucan is usually used as a supporting hydrating step, so it often sits in routines that include stronger actives. Add one new product at a time so you can tell what your skin is reacting to.[6]
Can beta-glucan help eczema or rosacea?
Is a facial for sensitive skin different from using a soothing serum at home?
Yes. A serum is one step you choose yourself. A professional facial starts with someone looking at your skin and adjusting the treatment to how it is that day, and a consultation can help decide which home steps are worth keeping.
Sources & scope
This Journal article offers general skincare education about beta-glucan in cosmetic products. It does not provide a diagnosis, prescribe treatment or replace individual medical advice. If you are worried about your skin, speak to a doctor. The points above draw on the following published resources.
- β-Glucans: Multi-Functional Modulator of Wound Healing (Majtan and Jesenak, Molecules, 2018) — sources of beta-glucan, topical uses and the limits of the human evidence.
- Anti-Wrinkle Therapy: Significant New Findings in the Non-Invasive Cosmetic Treatment of Skin Wrinkles with Beta-Glucan (Pillai, Redmond and Röding, abstract in the Journal of Cosmetic Science, 2005) — skin penetration and a small wrinkle study.
- Dermatologists’ top tips for relieving dry skin (American Academy of Dermatology) — moisturising ingredients, fragrance-free products and when to see a dermatologist.
- How to test skin care products (American Academy of Dermatology) — how to patch test and what to do after a reaction.
- Contact dermatitis (NHS) — symptoms, triggers including cosmetics and when to see a doctor.
- How to maximize results from anti-aging skin care products (American Academy of Dermatology) — why to add one new product at a time.
Editorial: Merve Akkaya Journal. Learn more about Merve Akkaya.
Continue reading
A little more clarity.
For skin that needs calm
Comfortable skin is usually a simpler routine.
If your skin feels tight, dry or easily upset, a consultation can look at what you use now and what may be working against you, before you add another soothing product.
Bring your current products, or photos of their labels. You can book directly, or send a quick question on WhatsApp first.
A skincare consultation does not replace a medical assessment.