Althaea Officinalis Leaf/Root Extract

Althaea officinalis, commonly known as marshmallow, is a herbaceous plant native to Europe and western Asia. The leaf and root extracts have been used in traditional medicine and skincare for centuries. In cosmetic formulations, this ingredient functions as an emollient, helping to soften and condition the skin surface.

The extract contains polysaccharides and mucilage compounds that form a protective film on the skin. These components are thought to help retain moisture and create a smoother skin texture.

The mucilage in marshmallow extract creates a thin, protective layer on the skin. This occlusive film helps to reduce transepidermal water loss, supporting the skin's natural hydration balance. The polysaccharide content may also have mild astringent properties, which can contribute to a firmer skin appearance.

The ingredient's traditional use in soothing preparations suggests it may have mild anti-inflammatory properties, though research specifically characterising these mechanisms in cosmetic concentrations remains limited.

Althaea officinalis extract is most commonly found in creams, serums, and hydrating masks rather than leave-on treatments requiring high concentrations. It works well alongside other emollients and hydrating ingredients such as glycerin or hyaluronic acid. There is no need for special application technique; use as directed on the product label.