Growth Hormone · 5mg × 10 vials
In plain terms: Sermorelin is a research compound - oral, fast-acting and well studied.
Sermorelin is a 29-amino-acid fragment of natural human growth hormone-releasing hormone (GHRH 1-29). It is the shortest sequence of native GHRH that retains full biological activity. Mechanism is upstream of HGH itself: sermorelin binds the GHRH receptor (GHRHR) on the somatotroph cells of the anterior pituitary and tells the pituitary to make and release its own pulse of growth hormone. Because the body's existing negative-feedback loop (somatostatin) stays intact, GH release is pulsatile and self-limiting, which is why sermorelin doesn't blow IGF-1 supraphysiologic the way exogenous HGH does. The downstream GH pulse drives IGF-1 production in the liver, which is what produces the body composition, sleep, skin, and recovery changes over time. Half-life in plasma is ~11-12 minutes, so dosing pre-bed is deliberate: it stacks with the body's natural overnight GH surge during stage 3-4 slow-wave sleep, amplifying that pulse rather than creating a separate artificial one. This is the gentler "older-school" GH releaser - same receptor target as Tesamorelin and the GHRH arm of CJC-1295, just shorter, weaker, and the original FDA-approved version (formerly marketed as Geref for pediatric GH deficiency).
Typical dose ranges by experience level - educational reference. Message us and we tailor it to you.
Standard entry point for first-time GH peptide users. The 5-on / 2-off schedule comes from older anti-aging clinic protocols and helps avoid any low-grade pituitary desensitization, but real-world community consensus is continuous nightly is fine for sermorelin specifically because the pulse is so short and physiologic. Pre-bed, fasted, 2-3 hr after last meal is non-negotiable for getting the slow-wave-sleep amplification effect.
500 mcg pre-bed is the most-reported "working dose" on r/Peptides for anti-aging and recomp purposes. At this dose users typically describe better deep sleep within 2-3 weeks, mild body recomp by week 8-12, and skin/recovery changes accumulating over 3-6 months. Beyond 500 mcg sermorelin specifically gives diminishing returns - the pituitary GH pulse capacity caps out, and customers chasing more should move to CJC+Ipa, not push sermorelin higher.
Honestly at this point most experienced users skip sermorelin and run CJC-1295 + Ipamorelin instead. The advanced sermorelin protocol is really just a stepping stone for customers who specifically don't want to switch compounds. If they're willing to switch, redirect to CJC+Ipa - same upstream GHRH mechanism plus a GHRP synergy that sermorelin alone can't match.
Straight talk - what people actually report, and what the studies measured.
Peer-reviewed studies and clinical guidelines - tap any to read the source.
foundational adult-use mechanism review, GHRH 1-29 biology
Read study ↗PubMedGeref International Study Group - Once daily subcutaneous GHRH accelerates growth in GH-deficient childrenpivotal pediatric trial, 30 mcg/kg, height velocity 4.1 → 8.0 cm/yr
Read study ↗PubMedPrakash A & Goa KL - Sermorelin: review of its use in idiopathic GH deficiencyefficacy + AE rates, the ~16% injection site reaction figure comes from this dataset
Read study ↗PubMedKhorram O, Laughlin GA, Yen SS - Endocrine and metabolic effects of long-term GHRH(1-29) in age-advanced men and women, JCEM 1997;82(5):1472-1479in age-advanced men and women, JCEM 1997;82(5):1472-1479](https://pubmed.ncbi.nlm.nih.gov/9141539/) - the cornerstone anti-aging study: 16 weeks nightly GHRH analog, +1.26 kg lean body mass, increased skin thickness, improved IS, IGF-1 levels approaching those of younger adults
Read study ↗PubMedVance ML - Growth hormone-releasing hormone, Clinical Chemistry 1990original GHRH biology, half-life, pulse mechanism
Read study ↗Clinical referenceSermorelin Wikipedia entry - FDA history, Geref withdrawal 2008FDA approval 1997, withdrawn 2008 for commercial reasons (not safety)
Read study ↗Aggregated sentiment from public forums & socials - real-world reports, not individual endorsements.
Injection site redness/itch: most-reported sensation, especially first 2 weeks, fades with site rotation
Mild head pressure / temporary headache 10-30 min post-injection: common at 500 mcg, settles within 4-6 weeks of consistent dosing
Flushing / face warmth right after injection: occasional, brief, lasts 5-15 min
Sleep improvement before any other effect: this is the single most-reported subjective change. Users describe deeper sleep, easier time falling asleep, vivid dreams (a GH peptide class signal) appearing within 1-3 weeks
Hunger increase: meaningful real-world report - sermorelin is the GH peptide most associated with appetite bump, more so than CJC+Ipa or Ipamorelin alone. Anti-aging clinic writeups flag this consistently
- Divergence: literature treats this as a minor signal, community treats it as a real one - users on sermorelin often report noticeable late-evening hunger that isn't present on ipamorelin-based stacks
Route: SubQ
Injection site: abdomen, rotate sites. Subcutaneous belly fat is the standard spot.
Storage: refrigerated, 14-28 days after reconstitution. Sermorelin is more freshness-sensitive than CJC-1295 with DAC (no albumin tail to protect it) but more stable than ipamorelin in solution. Toss at 30 days regardless.
Notes: Dose pre-bed, fasted. Insulin and high-glucose meals blunt the GH pulse, so the standard protocol is no food 2-3 hours before injection, then inject within 30 min of lights-out. Allow refrigerated vial to reach room temp before drawing. Don't shake, swirl gently.