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MEM Vitamin Solution (100×)

Quick Facts​

FeatureInformation
CategoryCell Culture Supplement
TypeChemically defined vitamin mixture
Common Stock100×
Typical Working Concentration1× Final Concentration
Primary FunctionVitamin supplementation for cellular metabolism
Common UsesCustom media, stem cells, primary cells, serum-free culture

Overview

MEM Vitamin Solution (100×) is a concentrated mixture of essential water-soluble vitamins used to supplement mammalian cell culture media. It provides key enzyme cofactors required for cellular metabolism, DNA synthesis, protein synthesis, and energy production.

Although many commercial basal media already contain vitamins, MEM Vitamin Solution is particularly useful when preparing custom media formulations, optimizing serum-free media, or supporting metabolically demanding cell cultures.

Biological Principle

Vitamins function as enzyme cofactors required for numerous biochemical pathways involved in:

  • Energy metabolism
  • DNA and RNA synthesis
  • Protein synthesis
  • Amino acid metabolism
  • Membrane synthesis
  • Cellular proliferation

Supplementation helps maintain efficient metabolism in defined and custom culture systems.

Typical Composition

Commercial formulations may vary slightly but typically include:

VitaminPrimary Function
Choline ChloridePhospholipid synthesis
D-Calcium Pantothenate (Vitamin B5)Coenzyme A synthesis
Folic Acid (Vitamin B9)DNA and nucleotide synthesis
Myo-InositolCell signaling and membrane synthesis
Niacinamide (Vitamin B3)NAD⁺/NADP⁺ synthesis
Pyridoxal HCl (Vitamin B6)Amino acid metabolism
Riboflavin (Vitamin B2)Oxidation-reduction reactions
Thiamine HCl (Vitamin B1)Carbohydrate metabolism

Biological Functions

ComponentFunction
B VitaminsEnergy metabolism and enzyme activity
Folic AcidDNA and RNA synthesis
PyridoxalAmino acid metabolism
CholineMembrane phospholipid synthesis
Myo-InositolCell signaling and membrane integrity

Common Applications

MEM Vitamin Solution is commonly used for:

  • Custom media preparation
  • Serum-free media
  • Stem cell culture
  • Organoid culture
  • Primary cell culture
  • Recombinant protein production
  • Defined media optimization
  • Developmental biology

Common Cell Types

Cell TypeTypical Application
Human ESCsDefined media
Human iPSCsExpansion and differentiation
Neural Stem CellsDifferentiation
Primary FibroblastsSerum-reduced culture
HepatocytesCustom media
CHO CellsRecombinant protein production
HEK293 CellsDefined media
OrganoidsLong-term culture

Example Media Formulations

Custom Stem Cell Medium​

DMEM/F-12

MEM Vitamin Solution

ITS Supplement

GlutaMAX

Growth Factors

Serum-Free Medium​

Basal Medium

MEM Vitamin Solution

BSA

ITS Supplement

Primary Cell Culture​

DMEM

MEM Vitamin Solution

10% FBS

GlutaMAX

MEM Vitamin Solution vs NEAA

FeatureMEM Vitamin SolutionNEAA
Primary FunctionEnzyme cofactorsAmino acid supplementation
Supports MetabolismExcellentModerate
Protein Building BlocksNoYes
Frequently Used TogetherYesYes

MEM Vitamin Solution vs B-27

FeatureMEM Vitamin SolutionB-27
VitaminsYesYes
AntioxidantsLimitedExtensive
Neural Culture SupportModerateExcellent
Growth SupportModerateExtensive

Advantages

  • Chemically defined formulation
  • Supports essential cellular metabolism
  • Improves reproducibility
  • Useful for custom media preparation
  • Compatible with most mammalian culture systems
  • Suitable for serum-free applications

Limitations

  • Many basal media already contain sufficient vitamins
  • Does not replace serum or growth factors
  • Benefits depend on the culture system
  • Excess supplementation rarely provides additional benefit

References

  • Eagle H. Nutrition needs of mammalian cells in tissue culture. Science (1955).
  • Freshney RI. Culture of Animal Cells: A Manual of Basic Technique and Specialized Applications.
  • Gibco™ MEM Vitamin Solution (100×) Product Information.
  • Thermo Fisher Scientific Cell Culture Handbook.
  • ATCC Animal Cell Culture Guide.