Lactitol
What is Lactitol?
Lactitol is a sugar alcohol derived through the hydrogenation of lactose, a disaccharide from milk whey, resulting in a white, crystalline powder soluble in water. Chemically known as 4-O-β-D-galactopyranosyl-D-glucitol, it belongs to the polyol family and serves primarily in skincare, oral care, and hair products. As a humectant, it binds water molecules to the skin's surface layers, promoting retention of moisture for a smoother feel. In formulations, it functions as a skin conditioning agent by helping maintain the skin's barrier integrity and flexibility. Additionally, its mild sweetness makes it ideal as a flavoring component in toothpastes, mouthwashes, and lip products, where it improves palatability without promoting bacterial growth like regular sugars. Commonly found in moisturizers, cleansers, and conditioners at low concentrations, lactitol supports overall product stability and sensory qualities without greasiness.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Enhances skin hydration by attracting and retaining moisture on the surface.
Promotes skin softness and smoothness through conditioning effects.
Provides pleasant flavor in oral and lip care items without excess calories.
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 gentle hydration. | Those with rare sensitivities to sugar alcohols. |
| Users of oral care products preferring natural-tasting options. | Individuals allergic to dairy derivatives, though purified forms are typically tolerated. |
| People looking for non-comedogenic ingredients in daily routines. | People with specific polyol intolerances in patch-tested products. |
Safety Notes
- Rated low hazard by safety assessors, suitable for most cosmetic uses.
- Non-comedogenic and unlikely to clog pores.
Frequently Asked Questions about Lactitol
What is lactitol used for in skincare?
It serves as a humectant to boost moisture, a skin conditioner for softness, and a flavoring agent in oral products.
Is lactitol safe for daily use?
Yes, it carries a low safety rating and is well-tolerated in cosmetics for most people.
Does lactitol clog pores?
No, it has a comedogenic rating of zero, making it suitable for acne-prone skin.