Sodium DCA

Sodium DCA ✓ Larger research base ✓ Better characterised ✓ More stable Contains sodium CAS: 2156-56-1 Potassium DCA ✓ Sodium-free option ✓ Same mechanism ✓ Molar equivalent dose Rarer, harder to source CAS: 19559-59-2 VS

Sodium DCA vs Potassium DCA — What’s the Difference?

The real differences between the two salt forms and when each might be preferred.

Sodium DCA and potassium DCA are two salt forms of the same active compound — dichloroacetic acid. They share identical mechanisms of action: both inhibit pyruvate dehydrogenase kinase (PDK), reactivating mitochondrial metabolism and reducing cellular lactate production.

The key difference is the counterion. Sodium DCA contains a sodium ion paired with the dichloroacetate anion. Potassium DCA contains a potassium ion instead. Once dissolved and absorbed, both deliver the same active dichloroacetate anion to cells.

Sodium DCA has by far the larger research base. Virtually all published clinical and preclinical studies use the sodium salt. Its safety profile, pharmacokinetics, and dosing are much better characterised. It is also more stable and easier to manufacture to high purity, which is why it dominates the market.

Potassium DCA may be preferred by individuals monitoring sodium intake — for example those managing hypertension or on low-sodium protocols. The molar equivalent dose is slightly different due to the different molecular weight (potassium DCA: MW 172.97 vs sodium DCA: MW 150.92).

Both forms require the same quality standards: HPLC purity ≥99.5%, MCA testing, heavy metals panel, and independent third-party COA. Potassium DCA is significantly rarer and harder to source at pharmaceutical grade.

This article is for informational and educational purposes only. AuraDCA products are intended for research use only.