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  • Green Tea Extract

    Supports oral health

  • Brand:
    Sunphenon 90d®

What is it?

Green tea is a plant predominantly grown in Japan.

What does it do?

Green tea is high in catechins, disease-fighting antioxidants that help to kill off bacteria in the body.

Why we chose it

The antibacterial benefits of green tea have been repeatedly shown to promote oral health naturally and safely.

Why not a generic green tea extract?

Our decaffeinated extract is the most researched on the market and is sourced direct from Japan’s pioneering supplier of green tea.


Key Findings

Humans using Sunphenon® for 8 weeks showed significantly* lower levels of bacteria associated with periodontitis compared to the placebo group.

Improvement of periodontal status by green tea catechin using a local delivery system: A clinical pilot study.
Hirasawa, al (2002). J Periodontal Res, 37(6), pp. 433–438.
6 humans, 41 - 64 years old diagnosed with advanced periodontitis
8 weeks
Nihon University School of Dentistry at Matsudo
Placebo-controlled, Randomized

Further Research

The safety of green tea and green tea extract consumption in adults – Results of a systematic review
Hu, J. et al (2018). Regulatory Toxicology and Pharmacology, 95, pp. 412–433.
Effects of green tea catechins on nonalcoholic steatohepatitis (NASH) patients
Fukuzawa, Y. et al (2014). Journal of Functional Foods, 9, pp. 48–59
Effects of a foot bath containing green tea polyphenols on interdigital tinea pedis
Ikeda, S. et al (2013). The Foot, 23(2–3), pp. 58–62.
Green Tea Extract Affects the Cytochrome P450 3A Activity and Pharmacokinetics of Simvastatin in Rats
Misaka, S. et al (2013). Drug Metabolism and Pharmacokinetics, 28(6), pp. 514–518.
Green tea protects human osteoblasts from cigarette smoke-induced injury: possible clinical implication
Holzer, N. et al (2012). Langenbecks Arch Surg, 397(3), pp. 467–474.
From “Strong” to “Much Stronger”: Utilization of Green Tea Extract Dispersant for SWCNT-Reinforced Polymer Composites
Uddin, A. J. et al (2012). Macromolecular Materials and Engineering, 297 (11), pp. 1114 - 1123.
Plant Polyphenols and Their Anti-Cariogenic Properties: A Review
Ferrazzano, G. et al (2011). Molecules, 16(2), pp. 1486–1507.
Green tea and bone health: Evidence from laboratory studies
Shen, C.-L. et al (2011). Pharmacological Research, 64(2), pp. 155–161.
Anti-cariogenic effects of polyphenols from plant products-A review
Kshitiz, P. et al (2011). Int J Res Ayr Phar, 3(2), pp. 736 - 742.
Potent radical scavenging ability of sunphenon: a green tea extract
Kaviarasan, S. et al (2011). , 35(2), pp. 596–612.