Recently purchased the NasoGel spay for dry noses. What do we need to do or order for refilling the spay bottle? I noticed there is NasoGEl in a t

Recently purchased the NasoGel spay for dry noses. What do we need to do or order for refilling the spay bottle?I noticed there is NasoGEl in a tube - can this be used for refilling the spray bottle or is there is a specfic product to order for the refill.Also where can the refill be purchased?Thank you.