Antioxidant

Glucosylrutin

INCI: GLUCOSYLRUTIN

Reviewed by Daisy · Last updated 14 Aug 2026

A flavonoid antioxidant that helps protect skin from oxidative stress and UV-induced damage

Best For Skin Types

All

Addresses

Fine lines, Photo-damage, Oxidative stress

Usage Frequency

Daily

What Is Glucosylrutin?

Glucosylrutin (also known as alpha-glucosylrutin) is a naturally derived flavonoid—a type of plant compound with antioxidant properties. It is created by attaching a glucose molecule to rutin, a flavonoid found in plants, which improves its ability to penetrate the skin's outer layers.

In skincare, glucosylrutin functions primarily as an antioxidant, meaning it helps neutralise free radicals and reactive oxygen species (ROS) that can damage skin cells. These unstable molecules are generated by UV exposure, pollution, and natural metabolic processes, and can degrade collagen, alter DNA, and trigger inflammation.

Benefits for Your Skin

How It Works

Glucosylrutin protects skin by donating electrons to free radicals, stabilising them and preventing them from triggering harmful chain reactions in cell membranes and DNA. The glucose attachment makes it more bioavailable in the epidermis, allowing it to reach vulnerable skin cells more effectively than non-modified flavonoids.

Research suggests it also influences the balance between matrix metalloproteinases (MMPs)—enzymes that break down collagen—and their inhibitors (TIMPs), helping to preserve skin structure after UV exposure. However, most evidence to date comes from laboratory and cell-based studies rather than large-scale human trials.

Clinical Evidence & References

Laboratory research demonstrates that glucosylrutin is a potent antioxidant with good skin penetration. Studies using cultured human skin cells have shown it can reduce UV-induced changes to collagen-degrading enzymes and modulate inflammatory responses. These findings suggest potential benefits for photo-aged and UV-damaged skin.

That said, human clinical data is limited. Glucosylrutin remains relatively uncommon in commercial products (appearing in roughly 0.1% of skincare formulations), and robust efficacy studies in living human subjects are sparse. More research is needed to establish optimal concentrations, duration of use, and measurable skin benefits in real-world conditions.

How to Use

Glucosylrutin is typically found in serums, essences, and moisturisers designed to address photo-damage and oxidative stress. For best results, layer it with other antioxidants (such as vitamin C or E) and always use broad-spectrum SPF during the day, as no topical antioxidant replaces sun protection. There is no established minimum or maximum frequency; use according to product instructions and your skin's tolerance.

Safety & Precautions

Glucosylrutin is generally well-tolerated and has no widely reported safety concerns in cosmetic use. As with any new ingredient, introduce it gradually if you have sensitive skin and discontinue if irritation occurs.

Frequently Asked Questions

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