Metallo-proteins including but not limited to lactoferrin (LF), transferrin (TF) and ovotransferrin (OTF) (all members of transferrin family), ceruloplasmin (CP) and metallo-thionein (MT) were found to stabilize and enhance the bio-functional activity of tocotrienol (T3), T3 mixtures or derivates. The synergism between MP and T3 also promote the intestinal transfer and the ultimate bio-availability of T3 and T3-derivatives for physiological functions. Such functional synergism includes hypocholesterolemic, anti-thrombotic, antioxidant, anti-athermogenic, anti-inflammatory and immuno-regulatory activities of T3 agents. Addition of a non-protein-type metal chelator provided further improvement in the action of the bio-functional activity of T3. These T3 compositions are useful as pharmaceuticals, in cosmetics, in foods and as nutritional supplements.