Product Name: Oat Beta Glucan (β-D-Glucan)
Cas No: 9041-22-9
Purity: 95%
Storage: Keep in dark and cool dry place -5~8 degree Celsius
Molar Mass: 504.4
Chemical Formula: C18H32O16
Synonyms: Beta-Glucan
IUPAC Name: (2S,3R,4S,5S,6R)-2-[(2R,4R,5R,6S)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2R,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol
SMILES: C([C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)OC2[C@H](O[C@H]([C@@H]([C@H]2O)O)OC3[C@H](O[C@@H]([C@@H]([C@H]3O)O)O)CO)CO)O)O)O)O
InChIKey: FYGDTMLNYKFZSV-URKRLVJHSA-N
InChI: InChI=1S/C18H32O16/c19-1-4-7(22)8(23)12(27)17(31-4)34-15-6(3-21)32-18(13(28)10(15)25)33-14-5(2-20)30-16(29)11(26)9(14)24/h4-29H,1-3H2/t4-,5-,6-,7-,8+,9-,10-,11-,12-,13-,14?,15?,16+,17+,18+/m1/s1
Application:
Oat Beta Glucan (β-D-Glucan) is a naturally derived polysaccharide from Avena sativa valued for its powerful skin-soothing and barrier-supporting properties. Its β-(1→3)(1→4)-linked structure forms a hydrating film on the skin, helping to reduce transepidermal water loss and improve suppleness. Widely used in cosmetic formulations, Oat Beta Glucan supports research on calming irritated skin, enhancing moisture retention, and promoting a smoother appearance. Its excellent solubility and compatibility with diverse formulation systems make it ideal for evaluating bio-based active ingredients in moisturizers, serums, and sensitive-skin applications.
Current Research:
Current Research on Oat Beta Glucan (β-D-Glucan) in Cosmetics
Oat beta glucan (β-D-glucan) is a polysaccharide primarily found in the cell walls of oats. In recent cosmetic research, it is viewed not just as a soothing additive, but as a multifunctional active with skin-barrier support, hydration, anti-aging, and soothing benefits that are highly relevant to sensitive-skin and dermocosmetic formulations.
β-Glucans from oats are linear polymers of glucose with β-(1→3) and β-(1→4) linkages. This structure is important because it influences solubility, viscosity, and how the polymer forms a film on the skin. Modern studies suggest that low-to-medium molecular weight oat beta glucans can penetrate into the upper layers of the epidermis, rather than remaining purely on the surface. This has attracted interest for delivering deeper soothing and barrier-support effects compared with classic film-formers.
At the same time, higher molecular weight fractions can form a flexible, breathable film on the skin, contributing to immediate smoothing and moisturizing sensations while helping to reduce transepidermal water loss (TEWL).
One of the most explored areas of research is the ability of oat beta glucan to support the skin barrier. Clinical and in vitro work indicates that formulations with β-glucan can:
Reduce TEWL, indicating improved barrier integrity.
Increase skin hydration measured by corneometry.
Improve the appearance of dry, rough, or compromised skin.
This makes oat beta glucan particularly suitable for sensitive, dry, atopic-prone, or post-procedure skin, where barrier function is impaired and consumers are actively seeking non-irritating, barrier-repairing cosmetic products.
Oat-derived ingredients in general have a long history of use in soothing products, and β-glucan is one of the key bioactive components. Current cosmetic research focuses on:
Reducing visible redness and irritation in response to environmental stressors (for example, pollution, UV exposure, mask-wearing, or frequent cleansing).
Supporting recovery after mild cosmetic procedures such as peels or micro-needling (in cosmetic contexts, not as a drug).
Providing a subjective feeling of comfort and reduced tightness.
In vitro studies often show that oat beta glucan can modulate the release of pro-inflammatory mediators in keratinocytes or support a more balanced inflammatory response. While these data are mechanistic and not therapeutic claims, they provide a scientific rationale for its use in calming, “anti-stress” skincare.
A growing body of work examines beta glucan as an anti-aging cosmetic active. Reported cosmetic benefits include:
Improved skin smoothness and reduction in the appearance of fine lines, likely due to both hydration and film-forming properties.
Support for overall skin elasticity and firmness in longer-term use.
An immediate “plumping” effect thanks to water-binding capacity and film formation on the stratum corneum.
There is also interest in synergistic combinations of oat beta glucan with niacinamide, ceramides, or hyaluronic acid, where beta glucan helps to enhance skin comfort and barrier function while the other actives address pigmentation or structural aspects of aging.
More recent research trends look at oat beta glucan through the lens of skin microbiome–friendly formulation and environmental protection. Because β-glucan can act as a gentle film-former and humectant, it supports the skin’s physical defenses without relying on occlusive, heavy textures. Some research also explores how beta glucans may interact with commensal microorganisms or help the skin better tolerate daily external stressors, although this area is still emerging.
In parallel, oat beta glucan is positioned as a naturally derived, bio-based polymer, aligning with consumer interest in “clean,” “green,” and sustainable cosmetic actives.
From a formulation standpoint, current research and technical literature highlight several practical points:
Molecular weight matters: different grades (low vs high molecular weight) provide different balances of penetration, film formation, and sensory feel.
Solubility and viscosity must be controlled to maintain clarity and stability of gels, serums, and lotions.
It is compatible with common cosmetic actives and emulsifier systems, making it easy to integrate into serums, essences, eye creams, masks, barrier creams, and after-sun products.
In summary, modern cosmetic research views Oat Beta Glucan (β-D-Glucan) as a versatile active that supports barrier repair, hydration, soothing, and anti-aging benefits, with good skin compatibility and a natural origin story that fits perfectly into today’s sensitive-skin and wellness-focused beauty market.
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