This repellent was not effective, and did not do what it states on the can! It may be cheaper, but I ended up paying prescription fees for antihistamines tablets and creams, antibiotics, plus cooling patches. Tesco state the repellent does what it states! I currently still have the scars from the bites, after I had sprayed the repellent and sat in a garden for a few hours on a summer evening in the UK.
I normally use Jungle Formula which I would highly recommend if your are a suffer from insect bites.

If you suffer quite bad with insect bites abroad espesially mosquito bite then this product won't work for you. If you do come across one please let me know of it.