T U / Nebido 1st time brew

[KZChoppers1]

Hi Everyone, Alex from NYC here. I'm new here but not new to the brewing. Brewing for myself only. Recovering from 22 years long IBD, 22 years on corticosteroids... Looking for advice and share my experiences. Hope I'm in right place.

Working on 10g dry test undecanoate powder. The usual way I prepare is 20%bb, 1% ba, .89ml for every dry gram of dry powder, MCT oil and lab heater/beakers. Keeping to/below pharma concentration levels. Been good so far.

200mg/ml 50ml tare
10g dry TU (10,000 mg) - 8.9ml dispaced (49.1ml)
20%BB- 9.82ml
1%BA- 0.491ml
79%MCT- 38.789ml

Combine , heat all to 50C 10 min stired, push filter out impurities in empty tare.

Please advice if there's a better way to consider. Thanks all.

 

[SunWukong]

Your calculations are way off. Total volume is 58ml. So your brew is 172.4mg/ml

 

[KZChoppers1]

Thank you for noticing. I subtracted instead of adding 8.9ml by volume. Thank you.

 

[Alert_Custard]

If you want do something like Nebido it needs castor oil and BB at 50%

 

[KZChoppers1]

Thank you for your input. I'm not familiar with that particular recipe. Would you please share more?

 

[KZChoppers1]

If you want do something like Nebido it needs castor oil and BB at 50%

The idea was to have a very long TRT ester serve at stable test level on 7 day inj schedule. (I happened to have 1/2kilo of Undecanoate on hand. Needed to put it to work.) According to plotter, the graph turned out acceptable. Nebido was the proposed outcome for reference only, it doesn't have to be %identical, but rather useful to serve desired purpose. Do you think this may be a possibility or am I dreaming a bad dream? Please advise.

 

[Alert_Custard]

The idea was to have a very long TRT ester serve at stable test level on 7 day inj schedule. (I happened to have 1/2kilo of Undecanoate on hand. Needed to put it to work.) According to plotter, the graph turned out acceptable. Nebido was the proposed outcome for reference only, it doesn't have to be %identical, but rather useful to serve desired purpose. Do you think this may be a possibility or am I dreaming a bad dream? Please advise.

HI, I am not sure. I think test undecanoate on a different oil to castor has still a very long half life. So I believe it should be more than fine for 1 per week.
But I haven't tried it though.

 

[Spaceman Spiff]

Thank you for your input. I'm not familiar with that particular recipe. Would you please share more?

There are threads about this with the search function. Specifically test U

 

[Alert_Custard]

If I remember right, Nebido is Test U, castor oil, BB at 50% and no BA because it is used in one shot. But I would add 2% BA for the way we use it.

I made it by mistake in the past with 20% BB and it was thick as gearbox oil

 

[KZChoppers1]

HI, I am not sure. I think test undecanoate on a different oil to castor has still a very long half life. So I believe it should be more than fine for 1 per week.
But I haven't tried it though.

Thank you for your input

 

[KZChoppers1]

There are threads about this with the search function. Specifically test U

Great. Thank you for info!

 

[KZChoppers1]

If I remember right, Nebido is Test U, castor oil, BB at 50% and no BA because it is used in one shot. But I would add 2% BA for the way we use it.

I made it by mistake in the past with 20% BB and it was thick as gearbox oil

Have you considered using MCT oil instead? Cold Castor oil is very thick for common 23g needle.

 

[Alert_Custard]

Have you considered using MCT oil instead? Cold Castor oil is very thick for common 23g needle.

It wasn't too bad. A bit slow, but I don't pin big amounts.
I am using one now from a UGL and next time I brew I will do a higher % of BB, 40% or 50%, something like that.

 

[buck]

Just looked at a bottle of TU i made back in 2007 250mg/ml using 20% BB and 2% BA. Think i was using cottonseed oil back then holding well.

 

[Spaceman Spiff]

Just looked at a bottle of TU i made back in 2007 250mg/ml using 20% BB and 2% BA. Think i was using cottonseed oil back then holding well.

According to this study it shouldn't.

Barely holds at 20% BB at 200mg/ml.

Structural Insights and Intermolecular Energy for Some Medium and Long-Chain Testosterone Esters - PMC

Testosterone (17β-Hydroxyandrost-4-en-3-one) is the primary male anabolic-androgenic steroid. The crystal structures of two medium and two long esterified forms of testosterone, including enanthate, cypionate, decanoate and undecanoate, were ...

pmc.ncbi.nlm.nih.gov

 

[Ghoul]

Just looked at a bottle of TU i made back in 2007 250mg/ml using 20% BB and 2% BA. Think i was using cottonseed oil back then holding well.

Do you use much gear that's 10+ years old? Have you encountered any issues? I've heard of some older Test-E developing pip, where there had been none with fresher vials of the same batch, but beyond that, there's little first hand experience out there...

 

[Alert_Custard]

According to this study it shouldn't.

Barely holds at 20% BB at 200mg/ml.

Structural Insights and Intermolecular Energy for Some Medium and Long-Chain Testosterone Esters - PMC

Testosterone (17β-Hydroxyandrost-4-en-3-one) is the primary male anabolic-androgenic steroid. The crystal structures of two medium and two long esterified forms of testosterone, including enanthate, cypionate, decanoate and undecanoate, were ...

pmc.ncbi.nlm.nih.gov

I brewed mine at 20%BB, 250mg/ml and the one vial that I had used (I stopped using it for an UGL one) crashed about 6 months later. The other 6 vials didn't crash. All from the same batch, stored together.
No idea why

 

[SunWukong]

The idea was to have a very long TRT ester serve at stable test level on 7 day inj schedule. (I happened to have 1/2kilo of Undecanoate on hand. Needed to put it to work.) According to plotter, the graph turned out acceptable. Nebido was the proposed outcome for reference only, it doesn't have to be %identical, but rather useful to serve desired purpose. Do you think this may be a possibility or am I dreaming a bad dream? Please advise.

Test U in MCT 80mg week (40 tue 40 fri) has me at 1220ng at trough.

 

[KZChoppers1]

According to this study it shouldn't.

Barely holds at 20% BB at 200mg/ml.

Structural Insights and Intermolecular Energy for Some Medium and Long-Chain Testosterone Esters - PMC

Testosterone (17β-Hydroxyandrost-4-en-3-one) is the primary male anabolic-androgenic steroid. The crystal structures of two medium and two long esterified forms of testosterone, including enanthate, cypionate, decanoate and undecanoate, were ...

pmc.ncbi.nlm.nih.gov

Thank you for the link!
2007? What's the shelf life on that one? Stored in cool dark dry place?
I decided with original plan and had success so far with 200/1, 20bb, 1ba using MCT oil . Flowers out well using 1ml backfilled insulin pin.

 

[KZChoppers1]

Test U in MCT 80mg week (40 tue 40 fri) has me at 1220ng at trough.

Good receptors! I'm at only 1023 pinning 100iu weekly.