Give your baby the gift of a strong immune system for life
Before the age of 3, your actions can have a greater impact in building a healthy and robust immune system for your child.
It takes the analysis of just one dirty diaper to start paving the way:
- Receive a custom lab report, personalized recipes and activities
- Learn how to improve your baby's likelihood for a strong immune system
- Also support healthy weight regulation, brain development and more

Our test kit reveals the levels of key microbes responsible for your child's long-term health and development
1. Collect
As simple as putting your baby’s dirty diaper in the collection bag.
2. Uncover
Our lab analyzes your baby's poop to let you see current levels of their microbiome health.
3. Take action
Receive tailored insights and simple to do recommendations based on your baby’s results.
tiniest Biome™ gives you
valuable recommendations
in three important areas
Nutrition
Discover new recipes to feed your baby during the first 3 years of life to set them up for a healthier, happier future.
Play and activities
Find fun new activities for your child. Play does more than help your baby physically, it can boost your baby’s immune system.
Skin regimen
Get tips to maintain healthy skin in the diapered area to promote comfort for baby and a better night's sleep for all
Meet our experts
What people are saying about tiniest Biome™
“I never knew there were companies like this that sample stool to gather data. I like that I can get a closer look at my kids' overall health and see what I need to change if anything with their diet.”
– Christina
“I like how easy it is to send in a sample.”
– Doris
“We do our best to feed our kids what they need and it is nice to know there is a way we can figure out if they are getting what they need.”
– Monica
tiniest Biome paid for the kit for our beta pilot parents, their feedback was voluntary.
Brought to you by
TerraCycle Discovery™ transforms the discarded products people use every day into key insights and useful recommendations.