Antioxidant

Kaempferol

INCI: KAEMPFEROL

Reviewed by Kate · Last updated 14 Aug 2026

A plant-derived flavonoid with antioxidant and soothing properties

Best For Skin Types

All

Addresses

Oxidative stress, Redness, Inflammation

Usage Frequency

Daily

What Is Kaempferol?

Kaempferol is a flavonoid—a naturally occurring plant compound found in foods like broccoli, tea and berries, as well as in bee products such as honey and propolis. In skincare, it functions primarily as an antioxidant and emollient, working to neutralise free radicals and support skin conditioning.

As a flavonoid, kaempferol belongs to a class of polyphenolic compounds known for their broad biological activity. When incorporated into skincare formulations, it aims to help protect skin cells from oxidative stress and reduce inflammatory responses.

Benefits for Your Skin

How It Works

Kaempferol works as an antioxidant by donating electrons to free radicals, neutralising them before they can damage skin cells and collagen. This helps reduce oxidative stress—a key driver of premature ageing and skin inflammation.

Its anti-inflammatory action appears to work through multiple pathways, modulating immune responses and reducing the production of inflammatory mediators in skin cells. The exact mechanisms in human skin are still being researched, though animal and cell-based studies show promising activity.

Clinical Evidence & References

Research into kaempferol's skincare benefits is emerging but still limited in human studies. Cell-based and animal model research suggests the ingredient has genuine antioxidant and anti-inflammatory properties. Studies in mouse models of psoriasis-like inflammation showed kaempferol reduced inflammatory markers, and cell studies indicate it may support melanin production and protect against oxidative stress.

However, most evidence comes from laboratory and animal studies rather than human clinical trials. The concentration at which kaempferol delivers meaningful benefits in cosmetic formulations remains unclear. More human research is needed to establish its efficacy in actual skincare use.

How to Use

Kaempferol is typically found in antioxidant serums, moisturisers and targeted treatments rather than cleansers. It works well as part of a broader antioxidant routine—consider pairing with other proven actives like vitamin C or niacinamide. There is no established optimal usage frequency; follow product instructions and introduce gradually if your skin is sensitive to new ingredients.

Safety & Precautions

Kaempferol is generally well-tolerated in skincare formulations. As a naturally derived compound, sensitivity is uncommon, though patch testing is advisable for sensitive skin before full application.

Frequently Asked Questions

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