Sodium Carboxymethyl Beta-Glucan
Reviewed by Kate · Last updated 14 Aug 2026
Also known as: Sodium Carboxymethyl Betaglucan
A carbohydrate ingredient with a gel-like texture, it functions
Addresses
EWG Safety Score
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What Is Sodium Carboxymethyl Beta-Glucan?
A carbohydrate ingredient with a gel-like texture, it functions as a binding agent and texture enhancer.
How It Works
Sodium carboxymethyl betaglucan works primarily as a binder and viscosity controller. Its molecular structure allows it to absorb and retain water, which thickens the formulation and helps it cling to the skin rather than immediately running off. This creates a protective film that can help other active ingredients penetrate or remain on the skin surface longer.
The ingredient also improves the flow behaviour of products during application, reducing tackiness or greasiness and creating a more elegant texture. This tactile benefit can enhance user compliance, particularly in serums and lightweight moisturisers.
Clinical Evidence & References
Direct clinical evidence on sodium carboxymethyl betaglucan as a standalone ingredient is limited. Most research on beta-glucans focuses on unmodified or less-modified forms, where studies suggest potential antioxidant and immune-modulating effects on skin. The sodium carboxymethyl derivative is used primarily for its functional properties rather than bioactive effects.
Its safety and tolerability are well established in the cosmetic industry, and it has been widely used in formulations without reports of significant adverse events. However, specific clinical trials demonstrating unique skin benefits of this particular derivative are sparse, and claims should remain conservative.
How to Use
This ingredient functions best as part of a well-formulated product rather than as a standalone treatment. It is typically found in serums, hydrating lotions and lightweight moisturisers. Apply formulations containing this ingredient to clean skin, and layer with other targeted actives as needed. It works well in layered routines and poses no particular timing restrictions.
Safety & Precautions
Frequently Asked Questions
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Sodium Carboxymethyl Beta-Glucan is a variant of Sodium Carboxymethyl Betaglucan, the form you will most often see on an ingredients list.
A plant-derived thickener and film-former that stabilises skincare formulations
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