Source comparison
Sermorelin for Women 45-55 Perimenopause: Comparison Table
Before introducing sermorelin, understanding how it compares to other growth hormone interventions clarifies why it's particularly suited to the perimenopausal metabolic profile. Sermorelin (GHRH analog) Stimulates endogenous pituitary GH secretion in physiolo
This comparison does not assign a generated winner or score.
- Before introducing sermorelin, understanding how it compares to other growth hormone interventions clarifies why it's particularly suited to the perimenopausal metabolic profile.
- Sermorelin (GHRH analog)
- Stimulates endogenous pituitary GH secretion in physiological pulses
- 200–500mcg subcutaneous injection nightly
- 18–32% improvement in lean mass retention, 15–25% reduction in visceral fat at 12 weeks
- None. Preserves natural feedback loops
- Best first-line GH axis intervention for women 45–55. Restores physiology without overriding it
- Synthetic GH (somatropin)
- Replaces GH directly, bypassing pituitary
- 0.2–0.4 IU subcutaneous injection daily
- 30–40% greater lean mass gain than sermorelin, but higher adverse event rate (joint pain, edema)
- Complete. Suppresses endogenous production within 2–4 weeks
- Reserved for diagnosed GH deficiency, not perimenopausal optimisation. Risk-benefit ratio unfavourable for most women
- GHRP-2 or GHRP-6 (growth hormone-releasing peptides)
- Stimulates GH via ghrelin receptor pathway (different from GHRH)
- 100–200mcg subcutaneous 2–3× daily
- Comparable GH increase to sermorelin but with appetite stimulation side effect
- Minimal. Different receptor pathway
- Useful in combination with sermorelin for refractory cases, but appetite increase is problematic during perimenopause
- MK-677 (ibutamoren, oral ghrelin mimetic)
- Oral ghrelin receptor agonist. Stimulates GH and appetite
- 10–25mg oral once daily
- Moderate GH increase but significant water retention and hunger increase
- Minimal
- Convenient oral option but appetite and fluid retention make it poorly suited to perimenopausal women prioritising body composition