High blood pressure 140/90

I have two wrist cuffs that measure blood pressure. One broke and so I brought a new one, only for it work again.
Both give variable readings with the ex-broken one giving lower readings.
However, throughout today, my blood pressure has been through the roof since I bought a weight loss supplement from Holland And Barratt. Beforehand it has been slight high with the new one giving 132/48... but never this high before..

Go see your GP or pharmacist and ask to have your blood pressure monitored. They'll advise on what steps to take afterwards, be it reducing salt intake or simply nothing.

The weight loss supplement contained almost 70mg of caffeine..