Avenanthramide D

Avenanthramide D — Oat-Derived Anti-Inflammatory & Soothing Active

Avenanthramide D (CAS 115610-36-1; molecular formula C₁₆H₁₃NO₄; MW 283.28 g/mol) is a naturally occurring phenylamide-type alkaloid found in Avena sativa (oat) grains. GINKVORA supplies it as a high-purity bulk powder (≥95% / 98%, HPLC) for cosmetic manufacturers, private-label skincare brands, and CDMOs developing anti-inflammatory, anti-pruritic, and skin-barrier-repair formulations.

As the most extensively studied anti-itch botanical active, avenanthramides represent the bioactive principle behind oatmeal's centuries-old reputation as a skin soother. Avenanthramide D specifically functions as an allosteric inhibitor of IκB kinase β (IKKβ), blocking the phosphorylation and degradation of IκBα and thereby preventing NF-κB nuclear translocation — the master switch of inflammatory gene expression.

Mechanism Highlights

• IKKβ/NF-κB pathway blockade: Suppresses TNF-α, IL-1β, IL-6, and IL-8 production at the transcriptional level
• Histamine release inhibition: Directly reduces mast cell degranulation, providing rapid itch relief
• Tight junction upregulation: A 2024 study (Park & Shin, Current Issues in Molecular Biology, 46:9) demonstrated that dihydroavenanthramide D enhances epidermal tight junction protein expression, strengthening the skin barrier
• COX-2 and iNOS downregulation: Dual anti-inflammatory action via both NF-κB-dependent and independent mechanisms

Compared to synthetic anti-inflammatory actives, Avenanthramide D offers a multi-target mechanism — simultaneously addressing inflammation, oxidative stress, histamine-mediated pruritus, and barrier dysfunction — making it uniquely suited for sensitive-skin and dermatological-care applications.

GINKVORA provides batch-specific certificates of analysis (COA), stability data, and regulatory documentation. Contact our technical team for sample requests and formulation guidance.

Source pharmaceutical-grade Avenanthramide D from GINKVORA — your partner in high-purity botanical cosmetic actives.