Estee Lauder Face Lotion Micro Essence Treatment Bio-Ferment is a lightweight, hydrating essence that supports skin’s natural renewal process. Infused with bio-ferment technology, it enhances radiance and strengthens the skin’s barrier to reveal a smoother, more resilient complexion. Ideal for preparing the skin for subsequent skincare steps, this lotion boosts moisture absorption and leaves the skin feeling soft, balanced, and revitalized.