The overall role of peptide use is raising systemic IGF-1 levels as high as possible
IGF-1, GHRP, ipamorelin, insulin, hgh all do this via various mechanisms although imo the only things worth the cost are ghrp, insulin and hgh. Maybe swap the GHRP out for ipamorelin instead if you have plenty of money. But if I had more money I'd spend it on HGH, not ipamorelin or GHRP2 lol.
Anyway, systemic IGF-1 is hard and very slow to increase or decrease, it likes being stable. So these peptides being in your system for a LONG time has a bigger effect on IGF-1 over say a small 20 minute increase.
GHRP2 will cause a 3 hour pulse in GH equivalent to 8ui of synthetic GH. But with synthetic GH the active life is a good 8 hours... so the HGH will increase IGF-1 levels more because GH is elevated for longer. Lots of little pulses during the day will keep GH levels somewhat elevated. This is better for IGF-1 as we no know. So lots of little doses will work WAY better than boom dosing. Unlike HGH which has a long half life so it's OK to take daily or morning/night
Another advantage of the GHRP when used this way is that it allows you to use less HGH for the same increase in IGF-1. HGH is pretty expensive and a younger dude will need 8ui a day split morning/night to get GREAT results (weekly changes in physique). So we can dose the GHRP2 5x a day and halve the GH dosage save a load of money in the process. IGF-1 levels seem very individual though, so is response to hormones and quality of hormones you buy. So the only real way is to take 4 blood tests for IGF-1. Baseline, 1 month of HGH 4ui morning and night, take a month off then GHRP2 5 or 6x a day with insulin, take a month off then the GHRP protocol with half the HGH dose and work out that way. Go by highest IGF-1 levels for cost always
Peptides keep you lean in two ways. The main way is by increasing IGF-1 levels. The second way is through the GH itself.
Ipamorelin is actually really good if you can afford it. You need to dose it higher though. GHRP2 and 6 will cause further fat loss through ghrelin release as well but ipamorelin does not do this, only through raising HGH and IGF. It will cause a MUCH bigger pulse though but you need to dose it higher. Much longer half life as well so you can boom dose your ipamorelin and it will just dump the entire contents of the pituitary hehe. No cortisol or prolactin release with ipamorelin also. I guess it comes down to money and goals. Are you focused on bulking or cutting? The hunger is the best part of GHRP6 imo and I'd still use it for that reason even if there was no effect on IGF-1 or HGH.
Putting this in it's own paragraph because it's important though. Ipamorelin requires a single daily morning, post training or night time dose of 1mg. That's 1mg a day. Yep. That's a half bottle a day or $20 that could be spent on dbol or better quality steak. You can always take less but if you're going to halve the dose you'll get the same results from 100ug of GHRP2 5x a day. Luckily the mg for mg basis on these drugs is roughly the same. But ipamorelin you can dose really fucking high
Better off saving your $$$ and getting test, deca, dbol, adex, viagra, masteron, tren, gh, insulin imo. Anything else is just money that could be spent on increased dosages or better quality of the above. Unfortunately I can't get HGH like many others. It's probably really expensive though unless prescribed so not worth it for a lot of people. I don't see people getting much more out of peptides than the equivalent of 6ui shitty chinese HGH though. So ultimately keep increasing peptides until you're running the cost of 6ui of HGH lol. Or maybe split it up 50/50 whatever works out cheaper. You can spend a lot on peptides especially with the misinformation out there. A few studies that will look at one process in isolation isn't the best way to look at things lol. Blood tests from long term use ARE.
You can get HGH Frag in Australia which would be good as well I guess. You need to run that very high also. 5mg = 15ui. So a decent dose you're looking at half a bottle a day for younger fellas, quarter bottle for oldies