Douglas Laboratories

For over 60 years, Douglas Laboratories® has been dedicated to meeting the needs of healthcare professionals and is recognized as a leader in the development of high quality, science-based, innovative nutritional supplements across 12 health functions that support healthy lifestyles.
L-histidine (500 mg), 60 capsules
L-Histidine supplies 500 mg of the amino acid in each capsule.
L-serine (500 mg), 60 capsules
L-Serine supplies 500 mg of the amino acid in each capsule.
Osteo-Guard Plus Ipriflavone
Osteo-Guard® Plus Ipriflavone combines ipriflavone, a flavonoid, with calcium from microcrystalline calcium hydroxyapatite compound (MCHC) prepared from whole bone, and magnesium from amino acid chelate with excellent bioavailability. Osteo-Guard® Plus Ipriflavone also provides phosphorus (as microcrystalline hydroxyapatite), trace minerals, bone matrix proteins, amino acids, and glycosaminoglycans.
Sale Ends: 05-18-2023