Inulin

Inulin is a naturally-derived ingredient that offers multiple benefits for skin health, particularly for those with sensitive or problematic skin. Found primarily in chicory root and Jerusalem artichoke [1], this polysaccharide works as a prebiotic, meaning it helps support the beneficial bacteria that live on your skin while creating an environment less favorable for problematic bacteria [2]. This makes it particularly valuable for those with acne-prone skin or conditions like rosacea where bacterial balance plays a crucial role.

For those with dry or sensitive skin (Types 1 and 2), inulin's ability to retain moisture in the skin's outer layer while forming a protective barrier makes it especially beneficial [3]. It helps reduce water loss and strengthen the skin barrier without causing irritation. If you have sensitive skin, starting with products containing lower concentrations (around 0.5%) is recommended. Those with normal to dry skin can typically tolerate higher concentrations up to 5% [1].

People with oily or combination skin (Types 3, 4, and 5) can also benefit from inulin, though they may want to stick to lower concentrations to avoid any feeling of heaviness. The ingredient's ability to reduce irritation from cleansing products makes it particularly valuable in face washes and cleansers for all skin types [4]. Research has shown it can help support skin renewal through its positive effects on skin cells, while also providing antioxidant benefits that help protect against environmental damage [3,4].

What makes inulin particularly special is its gentle nature combined with multiple benefits. It helps maintain skin hydration, supports the skin's beneficial bacteria, reduces inflammation, and even helps other skincare products work more effectively [2,3]. It's particularly valuable in anti-aging skincare due to its ability to support skin cell renewal and protect against oxidative stress [4]. For those dealing with sensitive skin conditions like rosacea or atopic dermatitis, inulin's anti-inflammatory properties and ability to support skin barrier function make it a valuable ingredient to look for in skincare products [2,4].

References

[1] Formula Botanica. "Inulin." Formula Botanica Ingredients Library, 2022.

[2] Di Lodovico S, Gasparri F, Di Campli E, et al. Prebiotic Combinations Effects on the Colonization of Staphylococcal Skin Strains. Microorganisms. 2021;9(1):37. https://doi.org/10.3390/microorganisms9010037

[3] Khmaladze I, Butler É, Fabre S, Gillbro JM. Lactobacillus reuteri DSM 17938—A comparative study on the effect of probiotics and lysates on human skin. Exp Dermatol. 2019;28(7):822-828. https://doi.org/10.1111/exd.13950

[4] Nizioł-Łukaszewska Z, Bujak T, Wasilewski T, Szmuc E. Inulin as an effectiveness and safe ingredient in cosmetics. Polish Journal of Chemical Technology. 2019;21(1):44-49. https://doi.org/10.2478/pjct-2019-0008