The library
Pregnancy, IVF & Postpartum Safety Guides
Long form, citation backed answers to the “is this safe?” questions that come up during pregnancy, fertility treatment, and the months after birth. Every guide is built around our 7-pillar ingredient safety rubric and references ACOG, ASRM, MotherToBaby (NIH), FDA, EWG, and independent NGO testing.
Gestational Diabetes Prevention: The Preconception Glucose Window
Gestational diabetes affects 6 to 9% of US pregnancies and the prevention window opens long before the second-trimester glucose challenge. Here is what the evidence shows you can do in the 6 to 12 months before conception to lower the risk.
Updated 2026-05-22
The Complete IVF Prep Guide: A 90-Day Evidence-Based Playbook
Everything that meaningfully shifts IVF outcomes in the 90 days before retrieval, organized into a sequenced checklist. Pulls together supplements, environmental exposures, skincare, the male partner's window, and what to drop from your routine.
Updated 2026-05-22
Magnesium During the Two-Week Wait: What the Evidence Actually Says
Magnesium glycinate is the supplement most often added during the IVF two-week wait. Here is what it's actually doing, when to start, the safe doses, and which form matters.
Updated 2026-05-22
PFAS-Proofing Your Kitchen 90 Days Before Egg Retrieval
The 90 days before egg retrieval is the oocyte maturation window. Removing PFAS exposure from your kitchen during this period is one of the few environmental changes with credible evidence behind it. Here is the practical playbook.
Updated 2026-05-22
Retinoids and IVF: When to Stop, When You Can Restart
If you've been using retinol, tretinoin, or any prescription retinoid, here is the exact timeline for stopping ahead of IVF, and the safe alternatives to bridge the gap until you can restart.
Updated 2026-05-22
What Skincare to Avoid During IVF Stimulation (And What to Use Instead)
The same skincare ingredients you'd avoid during pregnancy are the ones reproductive endocrinologists want off your shelf during an IVF cycle. Here is the list, why each one matters, and what to swap in.
Updated 2026-05-22
Sperm DNA Quality and Endocrine Disruptors: The Male Partner's 74-Day Cleanup Window
Sperm production cycles every 74 days. The choices a male partner makes during that window meaningfully shift sperm DNA fragmentation rates, motility, and concentration. Here's what to actually do.
Updated 2026-05-22
The IVF Prep Supplement Stack: What's Actually Worth Taking (and What Isn't)
The fertility-supplement aisle is full of bold claims and thin evidence. Here is what reproductive endocrinologists actually recommend for the 90 days before an IVF cycle, ranked by evidence quality.
Updated 2026-05-22
The Best PFAS-Free Leggings & Activewear for Pregnancy (Lab-Tested)
In 2022 and again in 2024, the independent lab Mamavation tested 32 workout legging and yoga pant brands for indications of PFAS ("forever chemicals"). The result:
Updated 2026-05-14
The 4 Best Non-Toxic Baby Bottles (Glass, Silicone & Stainless)
Baby bottles hold warm liquid against plastic for the first months of a baby's life. The bisphenol controversy (BPA, then BPS, then GenX/BPF replacements) has shown that "plastic replacements" often introduce new…
Updated 2026-05-14
The 8 Best Pregnancy-Safe Belly Creams & Stretch Mark Products
No cream prevents stretch marks with high-quality evidence. Whether you get them is mostly genetic, if your mother got them, you're more likely to. But what creams can do well: relieve the itchy, tight feeling of…
Updated 2026-05-14
The 4 Best Pregnancy-Safe Body Washes for Sensitive, Itchy Skin
Pregnancy hormones do a lot of things to skin: it becomes more reactive, drier, sometimes itchier (especially in the third trimester as the belly stretches). Conventional body washes with sulfates and synthetic…
Updated 2026-05-14
The 5 Best Non-Toxic Cleaning Products for Pregnancy
Conventional cleaning products are one of the highest-exposure chemical categories in a home. You inhale the fumes for hours after use. Common cleaning-product ingredients linked to pregnancy concerns:
Updated 2026-05-14
The 5 Best Non-Toxic, PFAS-Free Cookware Picks for Pregnancy
Conventional non-stick cookware (Teflon, T-Fal, most "non-stick" pans pre-2015) uses PTFE, itself a PFAS, and historically used PFOA in the manufacturing process. PFAS are "forever chemicals", they don't break down in…
Updated 2026-05-14
The 5 Best Pregnancy-Safe Natural Deodorants (Aluminum-Free)
This is the first thing to understand: deodorants mask or neutralize odor. Antiperspirants block sweat using aluminum compounds. Pregnancy is when many people switch from the second to the first.
Updated 2026-05-14
The 5 Best DHA & Omega-3 Supplements for Pregnancy (2026)
DHA (docosahexaenoic acid) is the omega-3 fatty acid most directly linked to fetal brain and eye development. The American Pregnancy Association recommends 300 mg or more of DHA daily during pregnancy and breastfeeding.
Updated 2026-05-14
The 4 Best Non-Toxic Lip Balms for Pregnancy
Lip balm is the cosmetic product most likely to actually be eaten, you reapply it all day, you eat with it on, you lick your lips. A study estimated the average person ingests several pounds of lip product over a…
Updated 2026-05-14
The 4 Best Magnesium Supplements for Pregnancy (Leg Cramps, Sleep, Anxiety)
Three of the most common pregnancy complaints, leg cramps, insomnia, and constipation, all have credible evidence that magnesium helps. A 2017 randomized trial showed a 50% reduction in leg-cramp frequency for the…
Updated 2026-05-14
The 8 Best Mineral Sunscreens for Pregnancy (Non-Nano Zinc Oxide)
Pregnancy hormones make your skin dramatically more likely to develop melasma, those dark patches across the cheeks, forehead, and upper lip that can last for years after delivery. Sunlight is the primary trigger. So…
Updated 2026-05-14
The 4 Best Nipple Creams for Breastfeeding (Pack This in Your Hospital Bag)
The first week of breastfeeding is the steepest learning curve of new parenthood. Even with great latch and good support, nipple soreness, chapping, and small cracks are extremely common in days 1–7. A good nipple cream:
Updated 2026-05-14
The 4 Best Organic Pads, Tampons & Postpartum Recovery Products
In 2020 and 2022, the independent lab Mamavation found indications of PFAS ("forever chemicals") in 22% of tampons tested and 48% of sanitary pads tested, including several brands explicitly marketed as "organic" or…
Updated 2026-05-14
The 8 Best Pregnancy-Safe Skincare Products (Retinol Alternatives & More)
Pregnancy hormones do real things to your skin: melasma (dark patches on the face), hormonal acne, increased dryness, and heightened sensitivity. The frustrating part is that the ingredients dermatologists usually reach…
Updated 2026-05-14
The 8 Best Pregnancy-Safe Prenatal Vitamins of 2026
A prenatal vitamin is the single most important supplement you'll take during pregnancy. It fills nutrient gaps the typical diet misses, folate, choline, iodine, iron, vitamin D, DHA, and the stakes are high: folate…
Updated 2026-05-14
The 5 Best Pregnancy-Safe Shampoos (No Formaldehyde-Releasers)
Most pregnancy shampoo advice focuses on sulfates, but sulfates aren't a pregnancy safety issue. They're a comfort choice (sulfate-free is gentler on color-treated hair and sensitive scalps). The actual safety concern…
Updated 2026-05-14
The Best Pregnancy Protein Powders, Shakes & Nutrition Boosters (2026)
Pregnancy raises your daily protein requirement to roughly 75–100 grams, about 25–30 grams more than pre-pregnancy. That's the equivalent of an extra chicken breast or a few eggs, every day. Most people don't…
Updated 2026-05-14
The 3 Best Pregnancy-Safe Toothpastes (Fluoride & Fluoride-Free Options)
Fluoride toothpaste is endorsed by the American Dental Association during pregnancy. The evidence for cavity prevention is overwhelming, and the dose absorbed from twice-daily brushing is minimal. You do not need to…
Updated 2026-05-14
The 4 Best Water Filters for Pregnancy (PFAS, Lead & More)
Tap water in the US is generally safe, but "safe" is a sliding scale, and a few contaminants are uniquely concerning during pregnancy:
Updated 2026-05-14