Dunaliella Salina/Haematococcus Pluvialis Extract

Dunaliella salina and Haematococcus pluvialis are microalgae species that accumulate high levels of carotenoids—particularly beta-carotene and astaxanthin—as a natural survival mechanism in harsh environments. These extracts are harvested and incorporated into skincare formulations to deliver concentrated antioxidant activity.In topical products, these microalgae extracts function primarily as antioxidants and skin protectants, helping to neutralise free radicals and support the skin's natural defence systems.

Carotenoids in these microalgae extracts are lipophilic molecules that embed themselves into cell membranes and intercept free radicals before they can damage skin proteins and lipids. This prevents oxidative degradation of collagen, elastin, and other structural components.The antioxidant action is thought to be most effective when used as part of a layered skincare approach—these ingredients work best alongside other protective measures like sunscreen, rather than as standalone treatments.

These extracts are typically found in serums, moisturisers, and targeted treatments. Apply to clean skin before heavier products. As with all antioxidant ingredients, consistency matters more than concentration; regular use over weeks is more relevant than occasional application. They integrate well into layered routines and complement (but do not replace) daily sunscreen.

Generally well-tolerated in cosmetic concentrations. Microalgae extracts have minimal reported sensitising potential, though those with shellfish or algae sensitivities should check full ingredient lists.