Fragrance

Stevioside

INCI: STEVIOSIDE

Reviewed by Emma · Last updated 14 Aug 2026

A natural sweetener with emerging research interest for skincare formulations

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What Is Stevioside?

Stevioside is a compound extracted from the leaves of Stevia rebaudiana, a perennial shrub native to South America. It is a diterpenoid glycoside — a type of natural molecule — that is significantly sweeter than sucrose but contains no calories. In skincare formulations, it functions primarily as a masking agent and is used in oral care products.

Beyond its sweetening properties, preliminary research suggests stevioside may possess anti-inflammatory and antibacterial characteristics, though its specific role and efficacy in skincare remain limited in the scientific literature. It is found in approximately 0.1% of skincare products currently on the market.

How It Works

Stevioside functions as a masking agent by improving sensory experience in formulations, particularly in toothpastes and mouthwashes. Its sweetness helps offset bitter or unpalatable ingredients without adding calories.

Regarding potential skin benefits, preliminary research suggests stevioside may exhibit anti-inflammatory and antibacterial properties through mechanisms common to certain plant-derived compounds. However, the depth of research specifically examining its effects when applied topically to skin remains limited, and more investigation is needed to establish how effectively these properties translate to skincare use.

Clinical Evidence & References

Most research on stevioside has focused on its use as a sweetening agent and its hypoglycaemic properties for oral consumption. Limited studies have explored its application in topical skincare formulations. One area of emerging interest involves its use as a solubilising agent in delivery systems for other active ingredients, which suggests potential utility in formulation science rather than direct skincare benefits.

Published evidence specifically documenting stevioside's anti-inflammatory or antibacterial effects when used topically on human skin is sparse. Whilst the compound shows promise in laboratory and preclinical settings, robust clinical trials evaluating its efficacy and safety in skincare products would be necessary before making confident claims about skin-specific benefits. Current use in skincare remains predominantly functional rather than therapeutic.

How to Use

Stevioside is typically used in oral care products and sweetened skincare formulations at concentrations determined by the product's functional needs and regulatory compliance. If using a product containing stevioside, follow the manufacturer's instructions for that specific formulation, as usage will depend on the product type (cleanser, mouthwash, etc.) rather than a universal guideline.

Safety & Precautions

Stevioside is generally well-tolerated and has been approved for use as a food additive in many regions. No significant adverse effects have been reported from topical skincare use, though comprehensive safety data specific to dermal application remains limited.

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