Deca (Nandrolone Decanoate)
First of all, Nandrolone in general doesn’t produce many estrogenic or androgenic side effects. This is because it has a very low rate of conversion to estrogen via the aromatase enzyme, approximately equal to 20% the rate of Testosterone.
Deca, along with Equipoise, anavar, and primobolan will ALL raise skeletal muscle and substantially increase collagen synthesis and bone mass and density, leaving you with a significantly reduced chance of getting injured than if you choose to use anabolic steroids like sustanon, or testosterone alone.
While testosterone increases bone mass and density, even at extremely high levels, the result from use is weaker tendons due to inhibition of collagen synthesis.
To prepare a cycle where the objective is to increase skeletal muscle mass and strength, while at the same time increase Joint, tendon and ligament strength to keep up with the increase in skeletal muscle, you must choose drugs like the ones I listed above as the base of your cycle. Since drugs like EQ, Deca, Anavar and Primo will reduce natural levels of test, these levels may be maintained with test as low as 100-200 mg per wk range. Deca at 270 mg/wk for a 200 lb male will increase procollagen III levels by 270% by week 2. Procollagen III is a prime indicator used to establish the rate of collagen synthesis. As you can see, Deca is a very good steroid to give you an increase in collagen synthesis, increased skeletal muscle, and increases in bone mass and density.
Deca is a very nice anabolic, causing good but slow gains in valuable muscle with an average recommended dose being 400-600mgs/week for muscle gain.
Deca also has a very long active life. A 100mg shot of Deca produced relatively active and stable plasma nandrolone levels until roughly day 10, therefore once a week shots are all that is required for stable. Also noted is that higher blood plasma levels of Nandrolone are found with Gluteal injections as opposed to other injections sites. Deca is also known for improved immune function, helps with joint issues, and is a very safe steroid for long term use. Deca is also known for producing quality weight gains. It has to be used for at least 12 weeks minimum, but I personally recommend using it for the duration of the cycle which I like to see a minimum of 16 weeks.
Many users of this compound complain of water-retention. Letrozole seems to be a preferred choice to combat this. Due to this water retention it would make Deca more appropriate for bulking cycles rather than cutting, although it can be effectively used for either. Deca is a progestin and unfortunately it happens to stimulate the progesterone receptor 20% as well as progesterone itself , and this opens the door for many possible unwanted side effects like the water retention and acne and is such a suppressive drug to your natural testosterone levels. A 100mg injection of Deca-Durabolin can cause a total reduction of natural test levels, and it takes about a month to return the test levels back to baseline, so always use Test with your Deca at a rate of at least 200mgs per week to avoid impotence and sexual dysfunction.
Used in a bulking cycle at up to 600mgs per week of the Euro-Pharmacies line for a duration of 12-20 weeks, or up to 400mgs/week in a cutting cycle for the same length of time as long as you use something to battle water retention if it is present. Either way remember what is stated above with the incorporation of Testosteron to your Deca cycle.