Skincare: shop by purpose
Separate cleanser, lotion, serum, cream and sunscreen to avoid duplication. For a new active product, check ingredients, order of use and volume.
Makeup: check shade and finish in person
Foundation, concealer and lip colour change with lighting. Note your usual shade, compare close matches and check whether a set is Japan- or airport-specific.
Sets and cabin liquids
Not every item in a set will be useful; compare each size and purpose. Keep sealed bags closed during transfers and check rules for sprays, gels and creams.
AIRPORT DUTY FREE GUIDE

