 1. Researchers are intensively studying plant extracts from fragile habitats for their beneficial biological actions, with antioxidant behavior being a common assessment component. 2. The DPPH and FRAP assays are commonly used in parallel to measure antioxidant capacity, along with total phenolics content, TPC, as a surrogate marker. 3. The present study found that the three assays displayed a high correlation with one another, indicating redundancy if used in parallel, and suggesting that the DPPH assay is preferred for preliminary screening of extracts from the Malaysian rainforest due to problems with the FRAP assay. This article was authored by Gary Clark, Kong Naiting, Christoph Wired, and others.