Security is the first for a child!
An insect does not stop by with a fragrance of the natural herb.
It varies according to persimmon of the sweat, use environment, but degree, an effect usually last for 1-2 hours.
It is an aim that a fragrance becomes light.
It is unopened, and it is an expiration date of 3 years after production, and I usually ship it in 1-3 months, and a product reaches the hand of the visitor, and don't worry as it is unopened and can keep it at normal temperature after opening having room for one year for two years.