Prolactin bump on hexarelin — anyone else?

H
Joined 2025
205 posts
hexaclinicContributor
3/1/2026 · 2344 views

I know this is a known side effect but curious about the real-world magnitude.

Hexarelin 100mcg 2x/day for 4 weeks (yes I know that's a short window, the prolactin is part of why).

  • Prolactin baseline: 9.1 ng/mL (ref 4-15)
  • Prolactin week 4: 22.4 ng/mL (!)

Above the reference range. No symptoms — no galactorrhea, libido fine, no headaches. But 22.4 is a real number.

Is this just hexarelin doing what hexarelin does, or should I be using a cabergoline-style mitigation next time?

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

7 Replies

S
Joined 2025
94 posts
3/1/2026

I switched from hexarelin to ipa specifically because of this. My prolactin on hex was 27 at 6 weeks, symptom-free but annoying. On ipa 300mcg bid my prolactin was 11 at 8 weeks. Night and day.

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
P
Joined 2026
46 posts
3/1/2026

This is consistent with published hexarelin data — it's the 'dirty' GHRP and hits prolactin/cortisol harder than ipa or ghrp-2. 22.4 is elevated but not wildly so. If you're going to run hexarelin more than 4-6 weeks, cabergoline 0.25mg 2x/week is the usual mitigation.

Or just swap to ipa/ghrp-2 if the prolactin bothers you.

H
Joined 2025
205 posts
hexaclinicContributor
3/2/2026

Both draws ~8am fasted, no training within 12h. So probably real.

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
C
Joined 2025
27 posts
cbc_cmpMember
3/2/2026

Draw timing matters a LOT for prolactin — within ~30 min post-workout it can be 2-3x baseline. Stress, sleep issues, nipple stim the night before. Need to standardize draw conditions.

GH axis test
  • Sermorelin · 300 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
D
Joined 2025
119 posts
dr_doubtRegular
3/3/2026

Prolactin CV is high (15-25%) especially at low baselines. A 9 -> 22 move is outside pure-noise though. I'd call this a real signal from the hexarelin.

K
Joined 2025
12 posts
3/4/2026

If you're symptom-free and only running 4-6 weeks hex, honestly I'd just ride it out. Cabergoline has its own issues and adding a dopamine agonist to solve a minor asymptomatic elevation is overkill.

Mass Q2
  • IGF-1 LR3 · 30 mcg · post-workout · sub-Q
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • MGF (PEG) · 200 mcg · post-workout · sub-Q
H
Joined 2025
205 posts
hexaclinicContributor
3/5/2026

Fair. Probably going to just run hex in short 4-week blocks and retest later.

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
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