I understand and commend you for what appears to be genuine concern but I'll stick to the advice of pal for the time being. Less is better IMHO.
Here's a little exerpt from Chemical Muscle Enhancement by Author L. Rae, an eBook that I read first before I decided to get into this stuff.
Sustanon-250
Active Life: About 3 weeks
Drug Class: Adrogenic/Anabolic steroid (for Injection)
Average Reported Use: Men 125-2000mg weekly
Acne: Yes
Water Retention: Yes
Liver Toxicity: Low except in high dosages over 1000mg weekly
High Blood Pressure" Yes
DHT Conversion:Yes
Decreases HPTA Function: Significantly after 2 weeks
Aromatization: Yes, somewhat less than test. cyp or enanthate
Sust 250 is a mix of 4 test esters:
Prop. 30mg
Phenylpropionate 60mg
Isocaproate 60mg
Deconoate 100mg
This is a well structured product that acts as a well time-released high anabolic/androgenic testosterone. In fact due to Test. Prop, this product becomes active after a day, but through the series of the other 3 tests., remains active for 3 weeks. Yada yada yada....
The description goes on to say:
Males normally utilzed dosages of 250-1000mg but some used higher dosages. As a rule, excellent results were realized with a dosage of 250-500mg every 7-10 days.
End of quote.