Pure® Encapsulations L-Glutamine contains the amino acid L-Glutamine. Pure® Encapsulations L-Glutamine is a free-form amino acid that is rapidly absorbed and conveniently dosed in capsules. Glutamine is the most abundant non-essential amino acid in the body, present in the intestine, muscles and brain. Directions: For those looking for an extra supply of this amino acid. How to use: 1 capsule one to three times daily between meals. Caution: If you are pregnant, breastfeeding, have any health conditions, or are taking any medications, consult your healthcare professional before using this supplement. Conservation: Store in a cool, dry place.