Test P Protocol - Half life and peak

[666bym]

I would like to discuss everything related to Test P over other Esters as I have had a very pleasant experience with Testosterone Propionate after switching over from Test E. Feel free to share your experiences and your protocol. I currently use 35mg Test P EOD alongside 280IU HCG EOD and personally feel great on this protocol. Libido and erections are perfect, I have high levels of energy and everything is just better compared to Test E. Only thing noticeable is that I build slightly less muscle. But I am okay with that given how much better I feel on Test P.

However, I have a question regarding Test P half life, peaks and throughs as there is quite some contradicting information out there. From what I have read in studies and what can be found on Steroid Plotter, Test P peaks after around 14h and has its trough after 48h with EOD injections.
Due to this I currently take my injections at around 10pm at night, which would give me peak levels at noon the next day according to the information found online. However, I recently found some guys on Meso claiming that Test P peaks within the first 1-8 hours and drops from there, which would make my protocol less than ideal. I have not yet done blood testing with bloods taken at 4 hours, 8 hours and 14 hours respectively, but it would be very interesting to see the different levels. Maybe I should add to this that my Test P is solved in MCT, which should shorten the half life compared to a more viscous carrier oil.

Does any of you guys have more detailed information on this? When do you take your Test P shots and on which protocol do you feel best?
Also how high do you dose your Test P alongside HCG?

 

[eatmyshorts81]

I would like to discuss everything related to Test P over other Esters as I have had a very pleasant experience with Testosterone Propionate after switching over from Test E. Feel free to share your experiences and your protocol. I currently use 35mg Test P EOD alongside 280IU HCG EOD and personally feel great on this protocol. Libido and erections are perfect, I have high levels of energy and everything is just better compared to Test E. Only thing noticeable is that I build slightly less muscle. But I am okay with that given how much better I feel on Test P.

However, I have a question regarding Test P half life, peaks and throughs as there is quite some contradicting information out there. From what I have read in studies and what can be found on Steroid Plotter, Test P peaks after around 14h and has its trough after 48h with EOD injections.
Due to this I currently take my injections at around 10pm at night, which would give me peak levels at noon the next day according to the information found online. However, I recently found some guys on Meso claiming that Test P peaks within the first 1-8 hours and drops from there, which would make my protocol less than ideal. I have not yet done blood testing with bloods taken at 4 hours, 8 hours and 14 hours respectively, but it would be very interesting to see the different levels. Maybe I should add to this that my Test P is solved in MCT, which should shorten the half life compared to a more viscous carrier oil.

Does any of you guys have more detailed information on this? When do you take your Test P shots and on which protocol do you feel best?
Also how high do you dose your Test P alongside HCG?

blood tests are the only way to know how prop affects YOU. If i use straight prop, I'm falling asleep by 4pm. MY body and low shbg has prop completely out of me by 4-5 pm. Which is perfect because I stay on 200mg test e weekly for trt. Without test e in the background I'd need trt doses of prop 2x day. Prop is basically a pre-workout for me personally. Phenylprop works great for daily trt, and feels just like prop to me.However that constant amped feeling lasts all night and I can't sleep for.shit. test e/prop for.life for me

 

[666bym]

Alright, thanks for your input. I am actually doing blood right now to check my serum levels at different times post injection (+8h, +16h, +24h, +48h, +96h). The 96h I am just doing to check where my serum levels are just on HCG. Hope these next few days won’t be too miserable.
Gonna report back with my results!

 

[eatmyshorts81]

Alright, thanks for your input. I am actually doing blood right now to check my serum levels at different times post injection (+8h, +16h, +24h, +48h, +96h). The 96h I am just doing to check where my serum levels are just on HCG. Hope these next few days won’t be too miserable.
Gonna report back with my results!

I'll definitely be watching this thread brother. This is excellent data, and much appreciated for the community. I don't think I've ever seen anybody test prop blood levels like this before.

 

[zmurphy]

The carrier oil/ester half life combo is still hard to wrap my head around. You could put TestP in Castor Oil and probably get a half life similar to TestE in MCT oil.

I'm definitely watching this thread.

 

[666bym]

My educated guess would be that the carrier oil makes a difference but not a huge one. You definitely won’t get the same half life from Test P in Castor as you would from Test E in MCT.
I recently heard somebody on here say keep short esters in non-viscous and long esters in viscous oils. I’m doing Test P in MCT purposely as I want to get peaks and troughs compared to steady levels. My only question was how quickly do my levels actually peak, which I am now trying to get some clarity on using bloodwork.

 

[Benf15harp]

My educated guess would be that the carrier oil makes a difference but not a huge one. You definitely won’t get the same half life from Test P in Castor as you would from Test E in MCT.
I recently heard somebody on here say keep short esters in non-viscous and long esters in viscous oils. I’m doing Test P in MCT purposely as I want to get peaks and troughs compared to steady levels. My only question was how quickly do my levels actually peak, which I am now trying to get some clarity on using bloodwork.

The only way to know the peak time with any certainty is to get all test out of your system and then get bloodwork post first injection. Otherwise , there’s quite a few esters that have built up that will never show an actual peak.

 

[666bym]

I have been on Prop only for 3 months now. Only used Test E before that. Only thing in my system by now is Prop. Also, I am not trying to find the Prop peak from zero levels, but I am trying to see the peaks and troughs of my current protocol and where my baseline serum testosterone just from HCG is (hence the 96h testing). I am currently on 35mg Prop + 280IU HCG EOD. Only thing I want to gain knowledge about is what my serum test looks like on this protocol over time, hence the testing. Based on this I will switch around my injection timing (morning vs nighttime), frequency (ED vs EOD) and dose (maybe go from 35mg to 50mg EOD).

Basically I am trying to gain more accurate data compared to what is available through steroidplotter.com to optimitze my protocol.

 

[Benf15harp]

I have been on Prop only for 3 months now. Only used Test E before that. Only thing in my system by now is Prop. Also, I am not trying to find the Prop peak from zero levels, but I am trying to see the peaks and troughs of my current protocol and where my baseline serum testosterone just from HCG is (hence the 96h testing). I am currently on 35mg Prop + 280IU HCG EOD. Only thing I want to gain knowledge about is what my serum test looks like on this protocol over time, hence the testing. Based on this I will switch around my injection timing (morning vs nighttime), frequency (ED vs EOD) and dose (maybe go from 35mg to 50mg EOD).

Basically I am trying to gain more accurate data compared to what is available through steroidplotter.com to optimitze my protocol.

Steroidplotter is def shite
I use test P(10mg) 11pm to keep a low stable baseline of test 24/7 but to also raise my levels throughout the night and then add test base (9mg)630am for the spike and then a lower(3mg) 230pm dose of base for smaller afternoon spike.
Good luck figuring out your optimal regime.

 

[666bym]

Steroidplotter is def shite
I use test P(10mg) 11pm to keep a low stable baseline of test 24/7 but to also raise my levels throughout the night and then add test base (9mg)630am for the spike and then a lower(3mg) 230pm dose of base for smaller afternoon spike.
Good luck figuring out your optimal regime.

Sounds interesting. I was also considering throwing in some extra Test Base for quick spikes before workouts!

 

[Bio_hacker]

blood tests are the only way to know how prop affects YOU. If i use straight prop, I'm falling asleep by 4pm. MY body and low shbg has prop completely out of me by 4-5 pm. Which is perfect because I stay on 200mg test e weekly for trt. Without test e in the background I'd need trt doses of prop 2x day. Prop is basically a pre-workout for me personally. Phenylprop works great for daily trt, and feels just like prop to me.However that constant amped feeling lasts all night and I can't sleep for.shit. test e/prop for.life for me

I have thought of this too , i have pharma grade test e with castor oil which keeps me stable and i want to experiment with prop alongside test e but with MCT oil like you do.My only concern is estrogen management.

 

[Type-IIx]

I would like to discuss everything related to Test P over other Esters as I have had a very pleasant experience with Testosterone Propionate after switching over from Test E. Feel free to share your experiences and your protocol. I currently use 35mg Test P EOD alongside 280IU HCG EOD and personally feel great on this protocol. Libido and erections are perfect, I have high levels of energy and everything is just better compared to Test E. Only thing noticeable is that I build slightly less muscle. But I am okay with that given how much better I feel on Test P.

However, I have a question regarding Test P half life, peaks and throughs as there is quite some contradicting information out there. From what I have read in studies and what can be found on Steroid Plotter, Test P peaks after around 14h and has its trough after 48h with EOD injections.
Due to this I currently take my injections at around 10pm at night, which would give me peak levels at noon the next day according to the information found online. However, I recently found some guys on Meso claiming that Test P peaks within the first 1-8 hours and drops from there, which would make my protocol less than ideal. I have not yet done blood testing with bloods taken at 4 hours, 8 hours and 14 hours respectively, but it would be very interesting to see the different levels. Maybe I should add to this that my Test P is solved in MCT, which should shorten the half life compared to a more viscous carrier oil.

Does any of you guys have more detailed information on this? When do you take your Test P shots and on which protocol do you feel best?
Also how high do you dose your Test P alongside HCG?

I just find it too short acting. Pinning gets old when you’ve been at this a while. Enanthate for me is smooth, and provides the right balance of rapid nongenomic effects like strength; and only has to be pinned once or twice weekly.

 

[666bym]

I just find it too short acting. Pinning gets old when you’ve been at this a while. Enanthate for me is smooth, and provides the right balance of rapid nongenomic effects like strength; and only has to be pinned once or twice weekly.

I honestly don’t mind pinning myself EOD, I actually look forward to it a little bit and I am taking my HCG EOD anyways so doing 2 shots instead of 1 does not really make a huge difference. For the future I think I will take some Test E alongside my Test P to get a higher base level but still have peaks and troughs.

 

[camy9000]

I'm really confused with the new steroid plotter it puts prop at very stables daily which doesn't seem to be the case I guess it's just a rough idea
But for sure test prop has peaks and troughs daily not just steady like test e or cyp

 

[666bym]

First two results are in for 8h and 16h post injection. I injected 35mg Testosterone Propionate in MCT Oil alongside 280IU HCG at 08:30 in the morning.
8 hours post injection my Testosterone was sitting 21.3 ng/ml.
16 hours post injection my Testosterone was sitting at 15.0 ng/ml.

So for Test P in MCT the spike is way earlier than stated in studies and as indicated on SteroidPlotter. Most references and anecdotes I have seen stated that the half life is 48h, which is complete BS.
Also the drop to 15.0 ng/ml at 16h post injection I already find quite extreme. I would assume it keeps dropping in a similar fashion and that I sit at 9 ng/ml or below 24h post injection. What I was pleasantly surprised by is my Estradiol level which sit at 24pg/ml despite my moderate HCG dose. So it seems that indeed Test P leads to less aromatisation.

Now I am very excited to see the 24h, 48h and 96h post injection data. Depending on how it turns out I may increase my dose of Test P and maybe throw in a small dose of Test E to reach more steady high levels but maintain peaks and troughs as well as low levels of Estradiol.

 

[666bym]

I should add that based on these results I will also get another test done for 4h post injection to get more accurate data on when the Test actually hits its full peak.

Metabolism may be different for each individual but I think overall this data will be very helpful for many people to fully dial in their Test P protocol.

 

[FunkOdyssey]

So for Test P in MCT the spike is way earlier than stated in studies and as indicated on SteroidPlotter. Most references and anecdotes I have seen stated that the half life is 48h, which is complete BS.

I perceive the peak effects of a typical 100 mg/ml propionate formula in grapeseed oil at around 5 hours, and I believe this agrees with lab data posted by a member over at ExcelMale. Steroidplanner.com lists the test propionate half-life as 19.5 hr - I think that is probably accurate, or at least in the ballpark.

 

[Ateam2023]

First two results are in for 8h and 16h post injection. I injected 35mg Testosterone Propionate in MCT Oil alongside 280IU HCG at 08:30 in the morning.
8 hours post injection my Testosterone was sitting 21.3 ng/ml.
16 hours post injection my Testosterone was sitting at 15.0 ng/ml.

So for Test P in MCT the spike is way earlier than stated in studies and as indicated on SteroidPlotter. Most references and anecdotes I have seen stated that the half life is 48h, which is complete BS.
Also the drop to 15.0 ng/ml at 16h post injection I already find quite extreme. I would assume it keeps dropping in a similar fashion and that I sit at 9 ng/ml or below 24h post injection. What I was pleasantly surprised by is my Estradiol level which sit at 24pg/ml despite my moderate HCG dose. So it seems that indeed Test P leads to less aromatisation.

Now I am very excited to see the 24h, 48h and 96h post injection data. Depending on how it turns out I may increase my dose of Test P and maybe throw in a small dose of Test E to reach more steady high levels but maintain peaks and troughs as well as low levels of Estradiol.

thanks for this information, it will be a good experiment probably with great results

 

[rexy]

I should add that based on these results I will also get another test done for 4h post injection to get more accurate data on when the Test actually hits its full peak.

Metabolism may be different for each individual but I think overall this data will be very helpful for many people to fully dial in their Test P protocol.

Did you ever follow this up anywhere? would love to see it. I can't search at the moment to find out for some reason - think the feature might be down.