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URGENT: This Common Food Additive is DESTROYING Your Ovarian Reserve

Code to Conception

Daily micro-protocols for the 90-day miracle window

| September 13, 2025 |

🔬 Pre-Bump Biology  

Hidden in lotions, shampoos, and even baked goods, parabens quietly sabotage fertility. New human studies confirm that women with higher urinary propylparaben show lower egg reserve and a 4% slower chance of conception per cycle—while butylparaben impairs oocyte mitochondria. Translation: tiny additives can mean fewer eggs, weaker embryos, and longer time-to-pregnancy.

🧬 Protocol Drop  

Today’s 1-Step Protocol: 

For the next 90 days, eliminate propylparaben and butylparaben entirely. Read every label—avoid “propylparaben/propyl p-hydroxybenzoate”—and swap all personal-care products for certified paraben-free alternatives. Within just 3 days, urinary levels plummet, giving your follicles a clean slate for the full 90-day egg maturation cycle.

👉 Read the full study summary 

📚 Glossary Pop  

Fecundability: This is the probability of conceiving in a single menstrual cycle. When researchers say “fecundability ratio 0.96,” it means each cycle carries a 4% lower chance of conception compared to unexposed women—a small shift that compounds dramatically over months of trying.  

Tag your partner: tonight, audit your bathroom shelf together. Switching your shampoo could be the easiest fertility upgrade you ever make.
P.S. Tomorrow Teaser
Think your fertility app has you covered? Think again. Tomorrow we reveal how most trackers completely miss the 33-hour fertile window that actually determines conception—leaving couples with a false sense of precision and months of lost opportunity.

Want to learn more?

Ao, J., Qiu, W., Huo, X., et al. (2023). Paraben exposure and couple fecundity: a preconception cohort study. Human Reproduction, 38(4), 726-738. https://doi.org/10.1093/humrep/dead016 

Jurewicz, J., Radwan, M., Sobala, W., et al. (2020). Parameters of ovarian reserve in relation to urinary parabens. Environmental Health, 19, 116. https://doi.org/10.1186/s12940-020-00580-3 

Shen, X., Zhan, M., Wang, Y., et al. (2023). Exposure to parabens and semen quality in reproductive-aged men. Ecotoxicology and Environmental Safety, 264, 115453. https://doi.org/10.1016/j.ecoenv.2023.115453 

Guo, Y., Yang, Y., Zhou, Z., et al. (2024). Propylparaben induces reproductive toxicity in human trophoblast cells via apoptosis and cell cycle pathways. Environmental Health, 2(5), 301-310. https://doi.org/10.1021/envhealth.3c00206 

Nguyen, H. T., et al. (2024). Urinary concentrations and elimination half-lives of parabens in Japanese young adults. Chemosphere. PMID: 38072198  

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