Marshmallow: Sweetness from the Root

Long before it became a confectionery, marshmallow (Althaea officinalis) was a garden plant prized for its soothing properties. Its root concentrates a softening mucilage that envelops sensitive skin in a veil of comfort. A velvety texture, ideal for delicate skin seeking relief.

Officinal marshmallow — Althaea officinalis for botanists — belongs to the Malvaceae family, like mallow and hibiscus. It is a large plant found in cool, moist places, with soft, downy leaves and pale summer flowers. It is best known for its fleshy, pale root, whose pulp releases a viscous substance when it comes into contact with water: mucilage.

For a long time, this dried and then powdered root was used to prepare a sweet paste: the famous confectionery that gave its name to the candy. Over time, the recipe replaced the root with glucose syrup, sugar, and gelatin — so much so that modern marshmallow no longer contains any plant at all. The confectionery kept the name; cosmetics, however, kept the mucilage.

Because it is precisely this mucilage that is of interest for sensitive skin care. Extracted from the root cold or by maceration, it retains the enveloping softness of the plant — without sugar, without aromas, without anything other than this softening veil that marshmallow naturally weaves.

In the garden, officinal marshmallow thrives near marshes and ditches: a robust plant whose root is harvested in autumn, when it is richest. Leaves, flowers, and roots each had their uses, but it is the dried, powdered root that remains the most sought-after raw material for its mucilage.

Mucilage is a collection of polysaccharides — long chains of plant sugars — that the marshmallow root produces in abundance. When it comes into contact with water, these molecules become saturated with moisture and form a light gel. Applied to the skin, this gel leaves a thin film that retains water on the surface and provides an immediate feeling of comfort, without an occlusive effect or a greasy film.

This is the same mechanism found in prickly pear mucilage, at the heart of the NOPAL LIFE approach: enveloping the skin rather than stripping it. Where an exfoliating active ingredient works deep down, marshmallow mucilage acts gently on the surface, which explains its remarkable tolerance on reactive skin.