Good as Gold Paste is an effective, and convenient feed supplement, specially designed for nervous, hot or stressed horses. It contains a high level of Magnesium, which is in chelated form for better absorption; B vitamins which have important nutritional functions in the synthesis of neurotransmitters in the central nervous system; and L-Tryptophan, a precursor amino acid in the formation of serotonin. Feeding Instructions Feed 35g the morning before a competition. Where necessary also feed 35g the evening before a competition. All horses are different & dosage may need to be adjusted. Some horses react more to Magnesium supplementation, others to L-Tryptophan 70g Syringe