Everything you need to know

We believe breast milk testing can be worthwhile for many mothers if you want information about your breast milk and understand the limits of testing. It will not satisfy you if you want a definitive milk score, diagnosis, or a guarantee about your baby’s nutrition.

Consider testing if you would value learning what a submitted sample contains, even if the result does not lead to an intervention. Curiosity is a reasonable motivation. So is wanting a more specific question to bring to a pediatrician, lactation consultant, or registered dietitian.

To learn more, please reference our article: Is Breast Milk Testing Worth It? What a Test Can (and Can’t) Tell You.

Milkprint is an at-home breast milk testing kit that helps you understand the composition of your milk through a personalized Milkprint results dashboard. Results vary by testing tier, from core milk composition to deeper nutritional insights.

No. Milkprint is an educational wellness product. It is not intended to diagnose, treat, cure, or prevent any disease or medical condition. You should discuss any health-related decisions with your pediatrician, lactation consultant, registered dietitian, or healthcare provider.

Milkprint is for breastfeeding or pumping mothers who want more visibility into their breast milk. It may be especially interesting for moms who are curious about milk composition, tracking diet changes, exploring possible sensitivities with their provider, combo-feeding, or simply wanting more data.

Milkprint testing varies by tier. Milkprint Core analyzes overall milk composition. Milkprint Advanced adds vitamins and iron. Please reference the “Order your kit” section for complete tests by product.

No, and we do not believe moms need a scorecard. Breast milk is naturally variable and highly personal. Milkprint provides a snapshot of your submitted sample with context, not a judgment of your milk or your feeding choices.

Milkprint can help you have a more informed conversation with your healthcare provider, lactation consultant, or pediatrician. It should not be used as the sole basis for changing your baby’s feeding plan.

We aim to get kits in the mail the same or following business day. Once you ship your samples back, we aim to give you results within 5 business days, but typically sooner.

Yes. Milkprint is designed to support repeat testing so you can track changes over time. This may be helpful if you are changing your diet, adding supplements, returning to work, pumping more often, or moving through different stages of lactation.

Breast milk composition can vary based on time of day, stage of lactation, maternal diet, hydration, collection timing, and whether the sample contains more foremilk or hindmilk. That natural variation is part of why context matters.

Milkprint uses the information you provide, along with your sample results, to process your kit, deliver your results, improve our products, and support human milk and lactation research.

We may also use aggregated, de-identified, or coded data to better understand human milk composition and share broader scientific insights over time. In some cases, these insights may support research, publications, new products, or future services.

We do not sell your personal information. You can learn more in our Privacy Policy.

Yes, you can use previously frozen milk for your Milkprint sample.

For best results, please keep the milk frozen until you are ready to prepare your kit. Once thawed, do not refreeze it. If possible, use milk that has been stored according to standard breast milk storage guidelines and clearly note that the sample was previously frozen when submitting your kit.

Previously frozen milk may still be tested, but results reflect the composition of that specific sample and may differ from fresh milk or milk collected at another time of day.