1. If they ask you to pay with Western Union Or MoneyGram they most likely are trying to steal your money because using those send the money directly to them so they can easily take your money.
2. If they dont offer a free sample this is not always true but most of the time if a website is legit they will offer a free sample.
3. ALSO just because they have a fancy legit looking website with the huge buff guy or the scientist at the top and they include a list of steroids and legit pictures DOES NOT mean they are legit anybody can put a legit steroid picture on there website.
I know that almost every website you see dont offer free samples or only accept money gram or western union and thats true but almost every website is trying to scam you Im just trying to save your money! my advice is find a provider at the gym or something that will sell them to you so you can get them personaly rather then use a website.