to/one Booster Serum (M), 55mL. A gentle gel booster that melts into the skin and helps soften it, readying the complexion so the skincare that follows sinks in smoothly. The mild, watery gel absorbs and distributes moisture for a fresh, clean feel. Made in Japan, with a blend of botanical oils including lavender, chamomile and ylang-ylang. Used first, it helps the rest of your routine feel smoother and more comfortable on the skin.

Take a suitable amount into the palm and smooth evenly over the whole face as an early step in your routine.