It is produced by fermentation of a sugar source, such as maize or beets, and then, by neutralizing the resulting lactic acid[4] to create a compound having the formula NaC3H5O3.

[5][6] As a food additive, sodium lactate has the E number E325 and is naturally a liquid product, but also is available in powder form.

[4][8] Sodium lactate is sometimes used in shampoo products and other similar items such as liquid soaps, as it is an effective humectant and moisturizer.

[4][8] In general, lactates such as sodium, calcium, and potassium lactate are salts derived from the neutralization of lactic acid and most commercially used lactic acids are fermented from dairy-free products such as cornstarch, potatoes, or molasses.

[4] In some rare instances, some lactic acid is fermented from dairy products such as whey[4] and lactose.