Hi, been on brand Tirz for 6 months and got fed up with the ridiculous markup, price rises and now reduced pen volume in the UK. Worked up pen sizes and taking smaller doses from larger pens to make it slightly more economic. I am a practicing qualified Analytical Chemist so took about 3 months of research and due diligence before I dipped my toe into the Grey and I am currently awaiting my first delivery from China with fingers crossed that UK customs don't get all efficient, my package makes it through and then doesn't get lost in the black hole of our Royal Mail service!
