WELLNESS TRANSFER FACTOR is a technologically advanced approach to immune system integrity. Suggested Use: 1 capsule per day with water for general well-being. During times of physiological stress 1 capsule may be taken up to 5 times per day. Take on an empty stomach and wait 30 minutes before eating. Well Made Supplement. Contains no yeast, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance. Over 40 years of trust. source naturals was created in 1982 by ceo ira goldberg to support everyone’s potential to enjoy optimal health. Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA)