Mannitol

Benefits
ExfoliatingAntioxidant

What is Mannitol?

Mannitol is a six-carbon sugar alcohol, naturally present in fruits, vegetables, and seaweeds like brown algae, or produced through the reduction of fructose or glucose via hydrogenation. In cosmetics, it serves primarily as an anhydrous humectant in moisturizers, serums, cleansers, and anhydrous products like powders and sticks. It works by attracting atmospheric moisture to the skin's surface, enhancing hydration without relying on water in the formula itself. Additionally, it acts as a binder to improve the cohesion and durability of solid products such as pressed powders or tablets, and as a stabilizer to maintain formula integrity under varying conditions. Its mild solubility and non-sticky texture make it ideal for lightweight textures, while its neutral sensory profile supports use in masking agents and flavor enhancers for oral or lip care items.

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:

Binder
Helps hold solid ingredients together to form cohesive tablets, compacts, or sticks, improving pressability, integrity, and wear of the finished product.
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.
Binding
Provides cohesion by helping ingredients stick together, improving the strength and integrity of pressed powders, tablets, or solid bars.
Masking
Reduces perception of unpleasant odors or tastes by neutralizing them or covering them with more acceptable sensory notes.
Moisturising
Improves skin hydration and comfort by combining water-binding (humectant) and barrier-supporting (emollient/occlusive) mechanisms to reduce dryness.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

- Draws moisture to skin for improved hydration and plumpness.

- Supports mild exfoliation to smooth texture gently.

- Helps bind ingredients for stable, long-lasting product performance.

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 hydration.
- People with rare allergies to sugar alcohols.
- Users of powder or solid cosmetics needing better integrity.
- Those sensitive to polyols in high concentrations.
- Those preferring natural-derived, gentle skin conditioners.
- Users avoiding carbohydrate-derived humectants.

Safety Notes

  • - Rated low hazard by EWG with scores of 1 across assessments.
  • - Considered safe for cosmetic use by regulatory bodies with no significant irritation concerns.

Frequently Asked Questions about Mannitol

What is mannitol used for in skincare?

It functions as a humectant to hydrate skin, binder for product stability, and mild exfoliant.

Is mannitol irritating to skin?

It has low irritation potential based on safety assessments.

Is mannitol comedogenic?

No, it rates 0 on comedogenic scales, safe for most skin types.