Isomalt

What is Isomalt?

Isomalt is a low-calorie sugar alcohol produced through enzymatic conversion of sucrose from beets, resulting in a mixture of gluco-sorbitol and gluco-mannitol. This white, crystalline powder serves as a multifunctional ingredient in skincare, oral care, and makeup products. Chemically, it acts as an osmotic humectant, drawing moisture from the environment into the skin's outer layer to support hydration without stickiness. As a bulking agent, it increases product volume and improves texture for better spreadability. In powders, its anticaking properties absorb excess moisture to maintain free-flowing consistency. For flavored items like lip balms or toothpastes, it provides a clean, sweet taste. Overall, isomalt enhances sensory qualities and stability across anhydrous and water-based formulations while remaining stable under varying humidity and temperature conditions.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Anticaking agent
Prevents powders from clumping by reducing moisture pickup and improving flow, keeping loose and pressed powders uniform during storage and use.
Bulking agent
Increases mass/volume to build structure and improve handling, commonly used to adjust feel, spread, and cost-in-use without acting as a primary active.
Flavoring agent
Adds or adjusts taste and aroma in oral care and lip products, improving user acceptance while complementing the overall sensory profile.
Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.

Benefits

Supports skin hydration by attracting and retaining moisture on the surface.

Improves powder flow and prevents clumping for smoother application.

Adds subtle sweetness to enhance the sensory experience in lip and oral products.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or dehydrated skin seeking humectant support.
Those sensitive to sugar alcohols, though rare.
Users of loose powders or pressed makeup for better handling.
Individuals with specific product texture preferences avoiding bulking agents.
People preferring mild flavor in lip balms or oral care items.
People monitoring intake in ingestible cosmetics, despite low absorption.

Safety Notes

  • Rated low hazard by independent assessments, suitable for most skin types.
  • Non-comedogenic, unlikely to clog pores in formulations.

Frequently Asked Questions about Isomalt

What is isomalt in skincare?

A beet-derived sugar alcohol used as a humectant to draw moisture to skin, bulking agent for texture, and mild flavor enhancer.

Is isomalt safe for daily use?

Yes, it carries a low safety rating and shows minimal irritation potential in cosmetics.

Does isomalt clog pores?

No, it has a comedogenic rating of zero, suitable for acne-prone skin.