Ingredient review
Maltitol
INCI: Maltitol
Maltitol is a gentle humectant that helps hydrate skin and improve product texture, but it offers no unique advantage over more common alternatives like glycerin.
In plain English
Maltitol is a sugar alcohol derived from maltose, often used in sugar-free foods and now found in some skincare products. In cosmetics, it acts as a humectant, meaning it pulls water from the air into the outer layer of your skin to keep it hydrated. It also gives products a smooth, slightly sweet feel and can help stabilize formulas. While effective, it's not as powerful or well-studied as classic humectants like glycerin or hyaluronic acid, so it's usually used in small amounts alongside other ingredients.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Maltitol is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Maltitol.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Maltitol is a sugar alcohol (polyol) produced by hydrogenating maltose, which comes from starch. It is a white, crystalline powder that is about 90% as sweet as sugar but with fewer calories. In skincare, it is used primarily for its humectant and skin-conditioning properties.
How it works
Maltitol works by attracting and binding water molecules to the skin's surface, temporarily increasing hydration. Its molecular structure allows it to form a thin film that slows water loss, though it is less effective than glycerin at deeper hydration. It also adds viscosity and a silky feel to formulations without being sticky.
Pros
Gentle hydration
Maltitol provides mild, surface-level hydration without the stickiness of some other humectants, making it comfortable for daily use.
Low irritation potential
With a low irritation and comedogenic rating, maltitol is unlikely to cause breakouts or redness, even for sensitive skin types.
Cons and cautions
Modest humectant power
Compared to glycerin or hyaluronic acid, maltitol's ability to draw and hold water is weaker, so it's rarely the star hydrator in a formula.
Limited research in skincare
Most studies on maltitol focus on food and oral care; its specific benefits in topical cosmetics are not as well-documented as other humectants.
Best for
- People with normal to dry skin looking for a gentle, non-irritating humectant
- Those who prefer products with a smooth, non-sticky feel
Use caution if
- Individuals with known sensitivity to sugar alcohols (rare, but possible)
Usage tips
Safety summary
Maltitol is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, and no significant toxicity concerns at typical concentrations. However, it is not as well-studied in skincare as other humectants.
Research notes
Research on maltitol in cosmetics is limited. Most evidence comes from its use in food and oral care, where it is well-tolerated. A few studies suggest it can improve skin hydration when combined with other humectants, but it is not a standout ingredient.
Common label clues
- Typical concentration
- Typically 1–5% in leave-on products, up to 10% in rinse-off formulas
- Regulatory status
- Maltitol is approved for use in cosmetics by the FDA and EU CosIng database as a safe humectant and skin-conditioning agent at typical concentrations.
- Common uses
- Moisturizers, Serums, Cleansers, Lip products
- Environmental note
- Maltitol is derived from starch (corn, wheat, or potato) and is biodegradable, but its production involves hydrogenation, which has a moderate environmental footprint.
Good to know
- Maltitol is often used in sugar-free cosmetics (like lip balms) for its sweet taste and humectant properties.
- It is not the same as maltodextrin, which is a starch-derived thickener with different properties.
Common questions
What is Maltitol in beauty products?
Maltitol is a sugar alcohol derived from maltose, often used in sugar-free foods and now found in some skincare products. In cosmetics, it acts as a humectant, meaning it pulls water from the air into the outer layer of your skin to keep it hydrated. It also gives products a smooth, slightly sweet feel and can help stabilize formulas. While effective, it's not as powerful or well-studied as classic humectants like glycerin or hyaluronic acid, so it's usually used in small amounts alongside other ingredients.
What does Maltitol do in a beauty product?
Maltitol works by attracting and binding water molecules to the skin's surface, temporarily increasing hydration. Its molecular structure allows it to form a thin film that slows water loss, though it is less effective than glycerin at deeper hydration. It also adds viscosity and a silky feel to formulations without being sticky.
Is Maltitol safe for most people?
Maltitol is considered safe for topical use in cosmetics. It has low irritation and comedogenic potential, and no significant toxicity concerns at typical concentrations. However, it is not as well-studied in skincare as other humectants.
Who should be careful with Maltitol?
Individuals with known sensitivity to sugar alcohols (rare, but possible)
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.