1. How much hair product is the right amount?
◇ Serum
Short 3 coffee beans
Long 10 yen coin

◇ Shampoo
Short cherry tomato
Long kumquat

◇ Conditioner
Short walnut
Long strawberry

◇ Oil
500 yen coin size

◇ Gel
Short 1 yen coin
Long 100 yen coin

◇ Wax
1 yen coin