The Eastern philosophy describes the energy of the sky as Yul (律) and that of the ground as Ryo (呂).
Yul is positive energy while Ryo is negative energy.
Yul is also the outside and Ryo the inside. When Yul and Ryo achieve balance, they come together in a dynamic yet beautifully balanced state.
This perfect state is called Yulryo.

Hair is Yul and the scalp is Ryo, the ground for hair.
Ryo is a hair care brand with the belief that a healthy scalp is the key to youthful, luxuriant, silky and healthy hair.
Every hair problem—hair loss, thinning and loose hair and rough hair—stems from the scalp.
Ryo brings the scalp back to its best possible condition. That’s what Yulryo