Xanthigen is tested not only for safety, but to ensure the quality of its constituents as well. The following graphs show the determination of the levels of active principles in Xanthigen.

Brown seaweed.
Fucoxanthin is a carotenoid pigment in Wakame and Kombu, which also contain violoxanthin, neoxanthin, and chlorophyll. Brown seaweeds are rich in n-3 fatty acids such as ω-3 18:3-α-linolenic acid and ω-3 20:5 eicosapentaenoic acid.

A Reversed-Phase High Performance Liquid Chromatographic (RP-HPLC) method with Photodiode Array detection is used to determine the Fucoxanthin content in brown seaweed extracts. Quantitation is carried out using external standard calibration. A 600mg dose of Xanthigen contains 2.4mg Fucoxanthin.

Pomegranate seed oil.
Pomegranate seeds are rich in punicic acid and contain other actives such as ellagic acid, other fatty acids and sterols. Punicic acid is a linolenic acid and constitutes 80% of the Pomegranate Seed Extract in Xanthigen.

GC-MS Determination of Punicic acid in Pomegranate seed oil. A 600mg dose of Xanthigen is standarized to 240mg punicic acid.