Calcium Lactate

Calcium lactate is the calcium salt of lactic acid, a naturally occurring organic compound. It appears in roughly 0.1% of skincare formulations, typically in small concentrations. The ingredient serves multiple functions within a formula: it can work as a gentle exfoliant, help maintain pH stability, and contribute astringent properties to skincare products.In topical skincare, calcium lactate is often included as a supporting ingredient rather than a primary active. Its presence may help refine the sensory profile of a product whilst contributing modest skincare effects through its chemica…

Calcium lactate functions through two mechanisms. As a keratolytic, it can softly dissolve bonds between dead skin cells on the surface, promoting gentle exfoliation. This action is typically mild compared to stronger exfoliating acids.Additionally, calcium lactate acts as a buffer within formulations, helping to maintain or adjust pH levels. This buffering capacity ensures the product remains within a skin-safe pH range, typically between 4.5 and 6.5, which supports the skin barrier and reduces irritation risk.

Calcium lactate is typically a supporting ingredient within a broader formulation, so usage depends on the specific product instructions. Apply according to the directions provided on your chosen skincare product. If used in a product containing exfoliating ingredients, begin with lower frequency and increase gradually if tolerated. Pair with a broad-spectrum SPF during daytime use to protect skin from sun exposure.

Calcium lactate is generally well-tolerated in skincare formulations. It is considered safe for topical use; however, those with known sensitivity to lactates or lactic acid should exercise caution.