Douglas Laboratories

Douglas Labs L-Carnosine capsules supply 500 mg of pure L-Carnosine. L-Carnosine is a naturally occurring dipeptide comprised of the amino acids alanine and histidine. It is present in the body,...

Douglas Labs L-Glutamine 500 mg capsules contain 500 mg of pure crystalline L-glutamine.  The amino acid glutamine plays a key role in the metabolism, structure, and function of the entire...

Douglas Labs L-Histidine supplies 500 mg of the amino acid in each capsule. L-Histidine is thought to play important roles in proper joint, neurological and cardiovascular support. Ingredients:...

Douglas Labs L-Ornithine supplies 500 mg of the amino acid in each capsule. Supplemental dietary ornithine can serve as a precursor of arginine. Both ornithine and arginine can support normal...

Douglas Labs L-Phenylalanine supplies 500 mg of pure L-Phenylalanine in each capsule. Phenylalanine is an essential amino acid that must be obtained through the diet. Found primarily in high...

Douglas Labs L-Proline supplies 500 mg of the amino acid L-proline in each capsule. L-Proline plays an important role in skin health and collagen formation as the body can convert proline into...

Douglas Labs L-Serine supplies 500 mg of the amino acid in each capsule.  L-serine can play important roles in the body to form the sulfur-rich amino acid, L-cystine.  Ingredients: Serving Size...

Douglas Labs L-Theanine supplies 100 mg of pure L-theanine in each vegetarian capsule. L-theanine is an amino acid that may promote a fast-acting sense of calmness. Ingredients: Serving Size 1...

Douglas Labs L-Threonine supplies 500 mg of this amino acid in each capsule. L-Threonine is an essential amino acid that must be obtained from the diet. It can play important roles in supporting...

Douglas Labs L-Tyrosine 500 mg capsule is an L-crystalline amino acid in supplemental form that may support neurotransmitters and stress-related performance, memory, alertness, and sense of...

Licorice has been used in Traditional Chinese Medicine for hundreds of years to support the body, including the gastrointestinal system. It was often used as a demulcent, to soothe and coat the...

Douglas Labs Lipanase is a natural pancreatic enzyme supplement formula providing 600 mg of quadruple strength pancreatin, which is equivalent to 2,400 mg of regular USP pancreatin.  The pancreas...