Arctigenin
INCI: ARCTIGENIN
Reviewed by Kate · Last updated 14 Aug 2026
A plant-derived antioxidant with emerging evidence for inflammatory skin conditions
Best For Skin Types
All, Oily, Combination, Sensitive, Acne-prone
Addresses
Usage Frequency
Daily
What Is Arctigenin?
Arctigenin is a lignan compound extracted from Arctium lappa L. (burdock root), a plant with a long history of use in traditional medicine across Asia. In skincare formulations, it functions as an antioxidant, helping to neutralise free radicals that can contribute to skin damage and premature ageing.
The ingredient has garnered scientific interest in recent years for potential effects beyond basic antioxidant activity. Early research suggests arctigenin may interact with specific inflammatory pathways in the skin, though its use in cosmetics remains relatively niche compared to more established antioxidants.
Benefits for Your Skin
How It Works
Arctigenin is thought to work primarily through antioxidant mechanisms, neutralising free radicals that damage skin cells. Beyond this, research indicates it may inhibit phosphodiesterase-4 (PDE4), an enzyme involved in inflammatory signalling within the skin. By modulating this pathway, arctigenin may help reduce the inflammatory cascade seen in conditions like acne and psoriasis.
Some evidence also suggests it may influence immune responses to bacteria associated with acne, though the specific mechanisms are still being investigated. The ingredient appears to have multiple targets within inflammatory pathways, which is why it shows promise across different types of skin inflammation.
Clinical Evidence & References
Published research has explored arctigenin's effects in models of psoriatic inflammation and acne caused by Cutibacterium acnes, with promising results in reducing inflammation markers and skin swelling. In one study, arctigenin effectively improved acne lesions and inflammatory responses in a live bacterial challenge model.
However, it is important to note that most research to date has been conducted in laboratory or animal models rather than in controlled human trials. While the early findings are encouraging, more clinical studies in human subjects would help establish the strength and consistency of these benefits in real-world skincare use. The ingredient remains relatively understudied compared to established anti-inflammatory actives.
Published Research
How to Use
Arctigenin is typically found in serums, toners, or treatment products rather than cleansers, allowing for prolonged contact with skin. Since research on optimal concentrations is limited, follow product instructions. It pairs well with other antioxidants and anti-inflammatory ingredients, and can be used daily as part of a routine. If introducing a new product containing arctigenin, start with 3–4 times per week to assess tolerance.
Safety & Precautions
Frequently Asked Questions
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