Biotherm Biosource Softening Foaming Cleanser is a rinse-off facial cleanser formulated as a gel that transforms into a light foam upon contact with water. Designed specifically for dry skin, this product serves as both a daily facial cleanser and a makeup remover. The formula incorporates Biotech Plankton, a key ingredient derived from natural thermal plankton through a biotechnology process, known to support skin’s natural moisture balance.

The gel-based texture allows for gentle cleansing without stripping the skin of its essential lipids. When massaged onto damp skin, it produces a soft, airy foam that lifts away impurities, excess sebum, and most types of surface makeup. After rinsing, the skin feels clean, soft, and hydrated, rather than tight or uncomfortable. This makes it suitable for use in morning and evening routines, particularly for those whose skin tends toward dryness or sensitivity.

The product’s formulation is free from sulfates such as SLS and SLES, which contributes to its mild cleansing action. The inclusion of Biotech Plankton aims to help maintain the skin’s microbiome while reinforcing the moisture barrier. Users with normal to dry skin types may find it effective as a primary cleanser, while those with combination skin might prefer it for cold weather or after periods of dehydration.

At 5.1 fluid ounces, the bottle offers a practical size for daily use. The product is designed for easy integration into existing skincare regimens, requiring no additional tools beyond water and hands. It should be used as a first or only step depending on personal preference, with follow-up hydration or treatment products applied afterward.