Biosource is Biotherm's line for gentle cleansing and make-up removal. Infused with Life plankton, products range from micellar, milk, and oil to cater to individual preferences and skin needs while preserving skin balance when removing impurities. 

It is essential as it balances the skin's pH after cleansing and removes any residual impurities, tightens pores, and enhances the absorption of subsequent skincare products, promoting a clear, healthy, and radiant complexion.

Toner should be applied after skin cleansing and before any serums or moisturizers. It helps prepare the skin to absorb these products better and maximize their effectiveness.

Infused with nutrient-rich Life Plankton extract, it is a softening and hydrating toner. It also protects the skin from environmental aggressions, making it wonderfully clear and comfortable.

Absolutely. It is designed to be gentle and suitable for all skin types, including dry and sensitive skin