Biotherm Life Plankton Essence review

I have a soft spot for first essences, as they pack the potency of a serum yet they have the lightweight texture of a toner. Many first essences often contain fermented extracts, and the Biotherm Life Plankton Essence is no exception. But instead of a yeast-based extract, this uses vitreoscilla ferment, which is the fermented extract of bacteria that grows in thermal spa waters.

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