I've used American made Winstrol by Sterling Winthrop many years ago. That was the best injectable Winstrol i ever used. It was painless and seemed to have a fairly long active life, the package insert said to inject dogs and cats weekly. the stuff today is all ugl and doesn't come with the same compounding. the oil is painful and I piss amber 2 hours later. i would rather take it orally now.
Winstrol is suspended...thats why if it sits around you see stuff sitting at the bottom.of the vial....water based winn or any water based ugl gear is a.risky option...bacteria etc is aleays a concern...if you have water based winn just drink it..you will.lose some(10-15%) of the avaliable drug..but no.risk of infection...