Buyer Guidelines

How to safely find, evaluate, and purchase breast milk on Milk Supply Co

Getting Started

Buying breast milk on Milk Supply Co is designed to be safe and straightforward. Create an account, browse listings, vet sellers, and purchase with payment protection. We've built multiple layers of trust and safety into every step of the process. Always consult your pediatrician before introducing donor milk to your baby's diet.

Finding the Right Seller

Tips for Finding a Trusted Seller

  • Browse listings by location, price, quantity, and dietary preferences
  • Look for verified seller badges (ID verification confirmed)
  • Read seller reviews and ratings from previous buyers
  • Check how long the seller has been on the platform
  • Consider starting with a smaller order (50-100 oz) to test before committing to larger purchases
  • Prioritize local sellers for fresher milk and lower shipping costs when possible

Questions to Ask Before Purchasing

Message the Seller and Ask About

  • Their health status — ask about any recent screenings or health conditions directly via chat
  • Medications, supplements, or herbal remedies they take
  • Diet (dairy-free, organic, vegan, etc.) — especially relevant if your baby has allergies
  • Smoking, alcohol, or caffeine consumption
  • When the milk was expressed and how it was stored
  • Collection hygiene practices (pump cleaning, hand washing)
  • Whether their baby is healthy

Most sellers on Milk Supply Co are happy to answer these questions. If a seller refuses to discuss their health or practices, consider choosing a different seller.

Understanding Listings

What to Look for in a Listing

  • Quantity available (total ounces)
  • Date range of milk expression
  • Price per ounce (market average ~$1/oz)
  • Dietary information and any disclosures
  • Verification status
  • Shipping options (local pickup vs. shipped)
  • Seller ratings and review count

Payment Protection

How Payment Protection Works

  • When you purchase, your payment is processed securely through our payment provider
  • The seller ships or arranges pickup
  • You receive and inspect the milk
  • Confirm delivery and quality to complete the transaction
  • If there's an issue, you can open a dispute before the order is finalized
  • Never pay sellers outside the platform — this removes your payment protection

Receiving & Inspecting Milk

When Your Milk Arrives

  • Open the package immediately — don't let it sit
  • Check that milk is still frozen solid or very cold (under 40°F)
  • Inspect bags for leaks, damage, or broken seals
  • Verify dates and quantities match your order
  • Do a smell test — thawed milk should smell slightly sweet (soapy smell from lipase is normal)
  • Transfer to your freezer immediately
  • Document any issues with photos before contacting the seller

Storage After Receiving

Storage Guidelines

  • Frozen milk: store at 0°F or colder, use within 6-12 months of original expression date
  • Thawed milk: use within 24 hours, never refreeze fully thawed milk
  • If milk still has ice crystals upon arrival, it can be safely refrozen
  • Store in the back of the freezer (not the door) for consistent temperature

For more detailed storage and shipping guidelines, visit our Shipping & Storage page.

Safety Recommendations

  • Always consult your pediatrician before using donor milk
  • Consider home pasteurization for additional safety (see our Pasteurization Guide)
  • Start with a small amount to test your baby's tolerance
  • Choose verified sellers whenever possible
  • The FDA advises caution with informally shared breast milk
  • If your baby has a weakened immune system or is premature, discuss donor milk use with your doctor

Prohibited Practices

The following actions are strictly prohibited and may result in account suspension:

  • Paying sellers outside the platform
  • Sharing your account with others
  • Submitting false disputes or chargebacks
  • Reselling purchased breast milk
  • Harassment or inappropriate communication with sellers

Ready to Find Breast Milk for Your Baby?

Browse our marketplace or learn more about safety