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Q&A: Peptides for Breastfeeding, Postpartum Weight Loss, Cancer History & How to Build Your Stack

Q&A: Peptides for Breastfeeding, Postpartum Weight Loss, Cancer History & How to Build Your Stack

In this Q&A episode of the Her Stack Series, I'm answering the peptide questions you're asking me every single day in my DMs and comments — the ones I find myself responding to over and over again. I wanted to gather them all in one place, unfiltered, and give you the real answers.

We get into peptides and breastfeeding (why there's no clinical data, and what that actually means for you), the truth about peptides, growth hormone, IGF-1, and theoretical cancer risk, stubborn postpartum weight that won't budge even when you're eating clean and training hard, the blends-vs-singles debate, and how to build your own peptide stack without ending up on eight injections a day.

I also share my honest take on why most peptide advice from men completely misses the mark for women — and what I wish I had known earlier in my own postpartum journey.

Doors close Sunday for The Mother's Protocol Program, my 12-week group program built specifically for women and mothers. We start Monday June 8 and this is the first time I've ever offered something this focused on motherhood and longevity.

Join The LongHer Life for women-specific guidance on peptides, hormones, and longevity.

We talk about:

00:53 - Doors close Sunday: The Mother's Protocol Program and why I built it

06:51 - A personal moment: getting my period after the masterclass, the tarot card I pulled, and what new beginnings feel like

09:07 - Q1: Can I take peptides while breastfeeding? The real, nuanced answer no one is giving you

16:13 - Topical and oral peptide alternatives during breastfeeding (GHK-Cu, BPC-157, KPV)

20:48 - Q2: Do peptides cause cancer? Angiogenesis, BPC-157, and what's actually theoretical

22:33 - Growth hormone, IGF-1, secretagogues, and what to avoid if you have a cancer history

26:16 - Q3: Stubborn postpartum weight that won't move and the hormone cascade behind it

29:01 - Why MOTS-c and AOD 9604 are my postpartum starting points (not GLP-1s)

30:39 - Q4: Blends vs. single peptides (Glow, Wolverine, CJC/Ipamorelin) and why I prefer singles

33:46 - Q5: How to build your own peptide stack without ending up on eight at a time

36:22 - The 90-day goal framework I use with every client

39:14 - Why the goal isn't to be on peptides forever, and what is

Questions answered in this episode:

  • Can I take peptides while breastfeeding?
  • Why is there no clinical data on peptides during breastfeeding, and what does that mean for moms making the decision?
  • How does the amount of breastfeeding change the risk profile?
  • What peptides should I absolutely avoid while breastfeeding?
  • What are the topical and oral peptide alternatives if I'm still breastfeeding?
  • How long does it take for prolactin to drop after I stop breastfeeding?
  • Do peptides cause cancer?
  • What is angiogenesis and why does BPC-157 cause it?
  • What is the connection between growth hormone, IGF-1, and theoretical cancer risk?
  • Which peptides touch IGF-1 and should be avoided if I have a cancer history?
  • Why won't my postpartum weight move even when I'm eating clean and training hard?
  • Which peptides are safest and most effective for postpartum weight?
  • What is the difference between peptide blends and single peptides?
  • What is an "anchor peptide" in a blend, and why does it matter?
  • How do I build my own peptide stack from scratch?
  • How many peptides should I be on at one time?
  • Can I take peptides while I'm sick?

Resources:

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