Women's Guide to Peptides

How women's physiology differs#

Women generally have greater sensitivity to GH-axis peptides and hormonal compounds due to differences in baseline GH pulsatility, estrogen's amplifying effect on GH secretion, and lower body mass on average. This means starting doses for women are typically 50–75% of the commonly referenced male dose. It also means women may see equivalent or greater results at lower doses, and that side effects from GH secretagogues — water retention, insulin sensitivity changes — may appear at lower thresholds.

Hormonal cycle considerations#

Estrogen naturally amplifies GH secretion, meaning GH secretagogue effects vary across the menstrual cycle — stronger in the follicular phase (days 1–14) and often milder in the luteal phase. This isn't a reason to avoid these peptides, but it's useful context for interpreting how you feel at different points in your cycle. Women on hormonal contraceptives or HRT may experience a flattened cycle effect. Track how you feel across your cycle in your Staqk notes.

Log cycle phase alongside your doses in Staqk to identify patterns in how you respond.

Commonly used peptides for women#

Healing and recovery: BPC-157 (gut, tendons, connective tissue), TB-500 (systemic healing, flexibility). Body composition and GH: Ipamorelin + CJC-1295 (low side effect profile, good starting GH stack). Skin and collagen: GHK-Cu (topical or injectable, very well tolerated). Weight management: Semaglutide, Tirzepatide (strong evidence base, widely used). Sexual health: PT-141 (Bremelanotide) — the only peptide with clinical evidence for female sexual dysfunction. Avoid high-dose GHRP-6 if appetite stimulation is a concern.

Dosing starting points for women#

BPC-157: 125–250 mcg per injection (vs 250–500 mcg common male dose). TB-500: 2.5 mg per week loading, 1–2 mg maintenance (vs 5 mg / 2–2.5 mg). Ipamorelin: 100–150 mcg per dose. CJC-1295 (no DAC): 100 mcg per dose. Semaglutide: begin at 0.125–0.25 mg weekly and titrate — the same conservative escalation applies regardless of sex. These are starting references, not prescriptions. Adjust based on response.

The Staqk dose calculator helps you dial in exact concentrations and syringe volumes for any starting dose.

What to avoid#

Avoid melanocyte-stimulating peptides (Melanotan I & II) — the risk-benefit profile is unfavorable, particularly for mole changes and uncontrolled tanning response. Avoid high-dose GH secretagogue stacks without baseline and follow-up IGF-1 bloodwork — women can be more susceptible to IGF-1 running high. Do not confuse peptides with SARMs or pro-hormones — these are entirely different compound classes with different risk profiles and are not covered here. When in doubt, start one peptide at a time.