What it is
This ingredient is derived from the leaves of Sasa veitchii, a dwarf bamboo widely known in Japan as kumazasa. The leaves contain polysaccharides, flavonoids, and chlorophyll-related compounds that contribute soothing, antioxidant, and conditioning properties. In sunscreens it is typically used at low levels in the water phase as a supporting botanical.
Safety & warnings
Generally well tolerated in leave-on cosmetics at typical use levels. As a botanical leaf extract it carries a low potential for sensitivity in individuals reactive to plant ingredients. It is water-based and is not considered comedogenic.
Origin & sourcing
Naturally derived. It is extracted from the leaves of the Sasa veitchii dwarf bamboo plant.
Questions everyone asks
What is kumazasa?
Kumazasa is the Japanese name for Sasa veitchii, the dwarf bamboo this extract is made from.
What is its role in a sunscreen?
It functions as a soothing, antioxidant-supporting botanical and does not contribute to the SPF value.