The number of treatment units (subjects or groups of subjects) assigned to control and treatment groups, affects an RCT's reliability. If the effect of the treatment is small, the number of treatment units in either group may be insufficient for rejecting the null hypothesis in the respective statistical test . The failure to reject the null hypothesis would imply that the treatment shows no statistically significant effect on the treated in a given test . But as the sample size increases, the same RCT may be able to demonstrate a significant effect of the treatment, even if this effect is small. 
So I made my order order on the 22nd of September. On the 29th I received my order but missing two bottles of boldenone. After many times of trying to contact them via email they blocked me sending them anymore emails. So on the 23rd of October I wrote a review explaining I haven't received part of my order. Same review as this one. They was quick to reply on the public page saying sorry for all this and we want to set it right. So that night I private messaged them for them to say they would send me the missing vials and a bottle of test as an apology. They told me they would send it without asking any address and after I gave it to them they said they would send it asap. That was on the 24th of October and it is now the 12th of November. After many messages asking for an update they have chosen to ignore all contact with me.