An apparatus for treatment of a body part such as the hair of a user which includes a treatment material such as coconut oil contained as a single portion within a closed and sealed flexible pouch formed of a flexible laminated plastic material which is foil free so that it can be heated in a microwave oven to warm the treatment material to a required temperature. The pouch includes printed instruction material comprising instructions to warm the material in a microwave oven, to knead the product when heated within the closed pouch and to re-heat in stages to the required temperature and to form an opening in the pouch and apply the warmed treatment material.