Lee BioSolutions
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Breast Milk - 1st Week - Colostrum


Product Name Raw Colostrum/Breast Milk - Collected during the 1st week after giving birth
Source Single Human Donor
Catalogue Number 991-01.1S
Form Liquid
Analytes Immunoglobulin A (IgA) - Values available for additional costs.
Lactoferrin (Lf)
Form Frozen, unprocessed liquid
Preservatives None
Storage -20°C (Others available by request)
Recertification N/A
Synonyms Colostrum, beestings, bisnings, first milk
991-01.1S-1 $ 65.00 1 mL
991-01.1S-10 $ 225.00 10 mL
991-01.1S-25 $ 500.00 25 mL
991-01.1S-500 Inquire 500 mL
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Lee Biosolutions is the leading collector and distributor of human biological fluids and tissues for protein isolation, diagnostic manufacturing and medical research. Our laboratory is equipped to handle specific requests for isolation of cells, proteins, pooling requirements or specific aliquots of biological specimens. A brief breakdown of our donor collection capabilities can be found here:

Biological Fluid Collection Menu

Biological Tissue Collection Menu

Custom preparations, technical support, bulk quantities and aliquoting available, email Info@leebio.com for more details.

Newborns have very small digestive systems, and colostrum delivers its nutrients in a very concentrated low-volume form. It has a mild laxative effect, encouraging the passing of the baby's first stool, which is called meconium.

Colostrum is known to contain antibodies called immunoglobulins such as IgA, IgG, and IgM. Colostrum also contains a number of growth factors, such as insulin-like growth factors

For an extra charge we can supply human breast milk within a specific week after lactation, by age or race of donor. Human milk contains two types of proteins: whey and casein. Approximately 60% is whey, while 40% is casein. This balance of the proteins allows for quick and easy digestion. If artificial milk, also called formula, has a greater percentage of casein, it will be more difficult for the baby to digest. Approximately 60-80% of all protein in human milk is whey protein. These proteins have great infection-protection properties.

During the first few days after delivery the breast produce colostrum. This is a thin yellowish fluid which is the same fluid that leaks from the breasts during pregnancy. It is rich in protein and ingredients that help the baby's immune system. Colostrum also helps the newborn's digestive system to grow and function properly.

After 3 to 4 days breasts will begin producing milk that is thin, watery, and sweet. This quenches the baby's thirst and provides the proteins, sugar, and minerals the baby needs. Over time the milk changes and becomes thick and creamy. This satisfies the baby's hunger.

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Testing/Assay Validation

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