Boldenone undecyclenate is generally injected every four or five days but some people will inject every day while others will inject once per week. The longer half-life of the undecyclenate ester would dictate an injection frequency of every 10-14 days but there has been a trend towards more frequent dosing by AAS users even with drugs known to have long half-lives. Dosing is generally kept pretty low (300-500 mgs per week) however the low binding affinity would argue for doses twice that which would be taken with testosterone. The anabolic to androgenic ratios are favorable for boldenone however people do not consider boldenone to be a particularly potent steroid, possibly due to the low doses that are utilized. Also, boldenone does not cause much water retention so many people assume it is not working if they do not put on ten pounds in one week. Boldenone is said to cause an increase in vascularity. There is no mechanism to explain why boldenone would do this anymore than any other AAS.