News
Short, dated and cited. Newest first.
July 2026
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For Men’s Health Month, a Case for Moving the Afternoon Cup to Rooibos
The South African Rooibos Council marked Men's Health Month with a caffeine-timing pitch from Stellenbosch physiologist Gerald Maarman; his own eight-year research program, and the trial his campaign quote actually rests on, say more than the pitch does.
May 2026
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A Spanish Lab Tests Green Rooibos on Anxious Roundworms and Fish, and the Anxiety Eases
A standardized green rooibos extract reduced anxiety-like behavior in zebrafish and roundworms and helped the roundworms survive oxidative stress better, Spanish researchers report. The work is preclinical, not a human result.
April 2026
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Rooibos Extract Makes Sunscreen Filters Last Longer
University of Malaga researchers found rooibos extract raised sun protection factor by up to 50 percent and slowed the breakdown of standard UV filters. The work is laboratory-only, not yet tested on skin.
September 2025
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Fermented Rooibos Calms the Gut Like a Steroid. Unfermented Strengthens the Wall.
A three-year Cape Peninsula University of Technology study on gut cells found fermented (red) rooibos eased inflammation about as well as a steroid drug, while unfermented (green) rooibos strengthened the intestinal barrier instead.
March 2025
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A Daegu Lab Ties Rooibos’s Aspalathin to Calmer Skin in Mice
South Korean researchers found aspalathin, the flavonoid unique to rooibos, eased eczema-like skin inflammation in mice by blocking a specific immune signal. The work is a mouse study, not a human result.
December 2024
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A Cape Town Review Surveys Rooibos Compounds Against Alzheimer’s Damage
A review in Molecular Nutrition and Food Research catalogues how rooibos compounds act on the cell-level damage seen in Alzheimer's. The work is preclinical, and it is not a reason to expect rooibos to prevent dementia.
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