Sermorelin vs Ipamorelin — which actually feels like something

N
Joined 2026
25 posts
28d ago · 1845 views

Ran sermorelin 300 mcg pre-bed for 8 weeks. Barely noticed anything. IGF-1 went from 154 to 178. Subjective effects: maybe slightly better sleep, maybe slightly warmer hands. Vague.

Swapped to Ipa 200 mcg pre-bed for 8 weeks. Night one I slept like a dead person. IGF-1 went from 178 to 239. Subjective: clearly better sleep, clearly better recovery, clearly something happening.

Are these two even in the same conversation? Feels like comparing aspirin to morphine.

7 Replies

H
Joined 2025
205 posts
hexaclinicContributor
28d ago

They're not the same compound class. Sermorelin is a GHRH analog — binds the GHRH receptor, releases GH only as much as the pituitary is ready to release. Weaker pulse, fewer side effects, very dependent on somatostatin tone.

Ipamorelin is a GHRP — ghrelin receptor agonist. Independent pathway. Actively 'gates open' the GH pulse past somatostatin, which is why the subjective effect is much stronger.

Stacking them is synergistic because you hit both receptors. Sermorelin alone is the weakest GHS compound for this reason.

Q2 stack
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 500 mcg · 2x/day · sub-Q
P
Joined 2025
71 posts
27d ago

Sermorelin standalone is really an 'entry drug' that shouldn't have been sold as a real GH protocol. The comparison to Ipa standalone is not close.

Healing + skin
  • BPC-157 · 500 mcg · 2x/day · sub-Q
  • GHK-Cu · 2 mg · nightly topical · topical
I
Joined 2026
44 posts
igf_curveMember
27d ago

Your IGF delta confirms the mechanism. Sermorelin moved IGF 24 points in 8 weeks, Ipa moved it 61 points. Ipa is doing 2.5x the work at comparable dosing.

S
Joined 2025
94 posts
26d ago

If you run them together — sermorelin + Ipa 300/200 3x daily — the IGF bump is bigger than either alone, often 80-100 points from baseline. The synergy is real, that's why CJC+Ipa (same mechanism pair) is the workhorse.

Growth + recovery
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 250 mcg · 2x/day · sub-Q
S
Joined 2026
115 posts
25d ago

Fair but worth noting — sermorelin has a shorter half-life (~12 min) than CJC no-DAC (~30 min). Some of the weakness is kinetics, not just receptor selection. At matched pulse-profile sermorelin underperforms CJC but not by as much.

N
Joined 2026
25 posts
24d ago

So next cycle I should be running CJC no-DAC + Ipa together rather than either alone. That's the consensus?

S
Joined 2025
94 posts
24d ago

@new2peptides yes. CJC no-DAC 100 mcg + Ipa 200 mcg, 2-3x daily, pre-bed always. That's the standard newbie-appropriate GHS stack.

Growth + recovery
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 250 mcg · 2x/day · sub-Q
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