Description
Description
DMAE Bitartrate is the tartrate salt of dimethylaminoethanol and is used in cosmetic systems positioned around surface firmness, conditioning, and age-support. The salt form provides convenient water solubility and handling compared with free DMAE, while introducing both amine functionality and an organic-acid counterion into the aqueous phase.
Chemical & Technical Profile
| INCI / Identity | Dimethyl MEA Bitartrate |
|---|---|
| CAS No. | 5988-51-2 |
| Molecular Formula | C8H17NO7 |
| Molecular Weight | 239.22 g/mol |
| Physical Form | White crystalline powder |
| Solubility | Freely soluble in water |
| Functional Category | Amine salt / skin-conditioning active |
Mechanism of Action / Technical Function
DMAE is structurally related to choline chemistry and has been investigated for effects on skin mechanical properties and cell-membrane-associated processes. Cosmetic positioning should remain focused on appearance and conditioning rather than therapeutic mechanisms. In formulation, the most immediate functional behavior arises from its cationizable tertiary amine, which makes pH and ionic environment important to compatibility.
Formulation Guidelines
Dissolve in purified water before addition to the main batch. Because the amine is protonation-sensitive, final pH influences charge state, odor, and compatibility with anionic polymers. Avoid adding concentrated DMAE Bitartrate directly to hydrated carbomer or other strongly anionic rheology systems without compatibility testing. Neutralization balance may shift when the ingredient is added, so measure final pH only after complete equilibration. Incorporate during cool-down when used with sensitive actives.
Compatibility & Stability
Monitor pH, odor, color, viscosity, and precipitation. Ionic interactions with anionic thickeners can reduce viscosity or create complexation. High-pH formulas may increase amine odor and alter sensory perception.
R&D, Scale-Up & Quality Control
For DMAE Bitartrate, incoming and in-process QC should control identity, pH, odor, clarity, and rheology response. Pilot transfer should lock DMAE Bitartrate dissolution, pH adjustment, and contact with anionic polymers, because these variables directly influence reproducibility. Release the formulation only after no polymer complexation, precipitation, or unacceptable amine odor develops.
Packaging, Shipping & Storage
Supplied in a sealed aluminum pouch. Keep tightly closed, dry, and protected from heat and humidity. Reseal immediately after weighing.
Applications
Firming serums, facial gels, emulsions, body-care systems, age-support moisturizers, and multi-active skin-conditioning formulations.
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