Empowering Women Through Science and Personal Experience
Rejuven is a science-backed platform founded by Dr. Erika Tajra, a medical doctor with a Master's in Personalized Medicine and Genomics. After facing her own challenges with conception and pregnancy, Dr. Tajra developed a personalized protocol that led to a healthy, complication-free birth at age 40.
Now, Rejuven brings this expertise to women everywhere, offering personalized guidance to optimize health outcomes for both mother and baby.

To give every baby the healthiest possible start in life - by empowering women with science-backed, personalized tools that support their journey from preconception to postpartum.
Our Values



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Our Story
In September 2020, at the age of 39, Dr. Erika Tajra became pregnant for the first time. Unfortunately, after contracting COVID-19 early in her pregnancy, she suffered a miscarriage. Determined to understand and overcome the challenges she faced, Dr. Tajra utilized her medical background and expertise in personalized medicine and genomics to develop a comprehensive health optimization protocol for herself and her husband.
By January 2021, they had implemented a regimen focusing on genomics, microbiome health, and biomarkers, incorporating prebiotics, probiotics, supplements, and lifestyle changes. After six months on this protocol, Dr. Tajra conceived again during her first ovulation cycle at age 40. This time, her pregnancy was free of complications, morning sickness, or fatigue, and she gave birth to a healthy baby on the exact due date.Postpartum, Dr. Tajra continued to nurture her baby's development, focusing on breastmilk quality and nutrition to support the infant's microbiome.
Inspired by her personal journey and the success of her protocol, she began advising other women individually before founding Rejuven to make this science accessible to women worldwide.
Why we need to do this now!
Our mission is more urgent than ever. Across the globe, childhood health is on the decline - and fertility rates are falling fast. Here are the trends that drive our work:

Frequently Asked Questions
Get the answers you need. Browse our FAQs for more information about Rejuven.
What does the Rejuven platform do?
Rejuven is a personalized health optimization platform that helps women improve their chances of conception, support a healthy pregnancy, and give their baby the best possible start in life. We use AI, genetics, and evidence-based protocols — all accessible through a beautifully designed app.
Is Rejuven a medical app?
No. Rejuven is not for diagnosing or treating illness. We focus on optimization, not medication - helping you make informed, science-backed decisions to support your fertility, pregnancy, and baby’s long-term health.
How does Rejuven support fertility?
We help you understand how to enhance your egg quality, hormone balance, and nutrient status using your unique biology. Even if you're not trying yet, or are freezing your eggs, we guide you toward a stronger foundation for the future.
What does Rejuven offer during pregnancy?
This is where our protocol shines. We use epigenetic insights to help you influence how your baby’s genes express - supporting immunity, brain development, and long-term health through the right nutrition, lifestyle, and habits during each trimester.
What about after the baby is born?
We continue to support you postpartum with guidance for recovery, breastfeeding, and nurturing your baby’s microbiome - which is essential for digestion, immunity, and even mood.
Do I need lab tests or wearables to use Rejuven?
Nope. Our system uses biometric analysis and AI-driven assessments to personalize your plan. No needles or medical testing required to get started.