Subsequent to the broken cells and tissues of true laurel callus was tested by Marquis Reagent, the color of callus from all treatments turned into dark violet whether it was white or greenish compact callus (Figure 4). These outcomes specified that induced callus of true laurel had its ability to produce safrole. Hence, callus initiation could obviously play a key role in rising cells and tissues that has the potential on safrole production. However, color test via Marquis Reagent was just a qualitative analysis. Though it was quick and accurate method to detect this phytochemical, quantitative assay should be done to identify which combination of NAA and BA is the suitable condition for safrole production from true laurel.