Trans-resveratrol is known to undergo photoisomerisation under UV and strong light exposure, converting from the biologically active trans-isomer toward the less active cis-isomer. In open blending environments, premix storage, and dry dosage production where light exposure, oxygen contact, and extended handling time are difficult to control, this creates a formulation risk that affects active content integrity before the ingredient reaches the finished product.
ResvaZeal is a stabilised trans-resveratrol powder sourced from Polygonum cuspidatum, with trans-isomer content verified on every batch. The protected powder format is designed to support trans-isomer retention during dry blending, filling, and storage, helping formulation teams establish a more reliable active-content baseline for capsule, tablet, sachet, and premix applications.
A development sample of ResvaZeal is supplied with verified trans-isomer content per batch, Polygonum cuspidatum source documentation, allergen and vegan declarations, and a Technical Data Sheet with suggested inclusion rates by dosage format.
Available in two grades - ResvaZeal 20 (20% trans-resveratrol loading) and ResvaZeal 30 (30% trans-resveratrol loading).
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