Inulin
Prebiotic polysaccharide from chicory root. Feeds beneficial skin microbiome bacteria and holds moisture.
Evidence by route
Topical application
Small studies show growth of commensal staphylococci after application. Tolerates well on sensitive skin.
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Oily, Combination, Sensitive
About this ingredient
Inulin is a prebiotic polysaccharide from chicory or agave root. Structurally a fructan – a chain of fructose residues. In food industry it serves as fiber and sugar substitute; entered cosmetics in the 2010s as a "prebiotic for skin microbiome". Mechanism. Does not feed the skin directly but is a substrate for beneficial microbiome bacteria (Lactobacillus, Bifidobacterium). On skin it theoretically supports microbiota diversity and reduces growth of opportunistic pathogens (Staphylococcus aureus in atopic dermatitis, Cutibacterium acnes in acne). Additionally a mild humectant binding water. Where applied. Creams, serums, face washes, deodorants, atopic-skin products (0.1-3%). In Spain in La Roche-Posay Lipikar (for atopy), Bioderma Atoderm, Eucerin AtopiControl, Sesderma Atopises. Evidence base. RCTs on topical inulin in atopic dermatitis patients: Glatz 2018 (50 children, 8 weeks) – improved SCORAD index and reduced SCORAD itch. No direct comparisons with other moisturizers. On healthy skin studies show mild barrier function improvement (Pinto 2017). Safety. CIR has not made a separate assessment. ESCD does not list it as a frequent allergen. Irritation and sensitization are rare. Pregnancy and lactation – safe topically. Suitable for all skin types, especially atopic, sensitive, post-procedure.
Frequently asked questions
Is Inulin safe during pregnancy?
Inulin is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Inulin for?
Inulin suits: normal, dry, oily, combination, sensitive.
What is Inulin and what does it do in cosmetics?
Prebiotic polysaccharide from chicory root.
What's the INCI name for Inulin?
The INCI name is Inulin.
See Inulin in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
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