Product Introduction - How to Use After wetting your hair thoroughly, apply an appropriate amount to your hair and wash while massaging well. Then, rinse thoroughly. Be sure to rinse well, especially behind the ears, at the nape of the neck, around the ears, and at the hairline to avoid any residue. Recommended amount: about the size of a 500 yen coin (approximately 3ml). Caution (Disclaimer) > Please be sure to read ★★Free shipping nationwide★★ [Notice] This will be shipped by standard mail. (We do not provide compensation for damage, loss, or theft of the product.) An invoice will not be included.