Tea-catechins differ in the molecular constitutions and stereochemistry, in-turn showing variance in their bioactivity and radical-scavenging potential. This evidences differing conformational preferences, suspected of manifesting themselves in deviations to low-energy vibrations and dynamics, with theoretical results showing these deviations to be particularly pronounced in the ~2-40 meV region. We propose tracking the low-energy vibrational dynamics of the 8 principal catechins found in green tea towards resolving this structure-activity relationship. The results will complement extensive Muon-spin determinations completed on HiFi , towards a fully-comprehensive and highly-impacting work falling in the areas of 'Healthy-aging' and 'Physics-of-life', with significant long-term potential to inform other anti-oxidant, nutritional sciences and health/life-sciences initiatives.