Member explainer
How DSK works
A narrated walkthrough with captions — learn how to join a group buy, pay, and how shared testing works.
DSK
Welcome to Direct Source Kits
Source Together. Save Together.
Learn how to join group buys, make payments, and understand shared testing.
Read how it works
Find a group: open Group Buys, choose an active group and open its details. Review the product, price per kit or vial, minimum order, closing date and the one-time testing fee.
Join: tap Join Group Buy. The group's minimum quantity is added to your cart; you can increase it but not go below the minimum. You can join more than one group at a time.
Checkout: confirm your shipping address, review each group buy, and choose any optional extras such as a custom COA or an expedited-testing contribution.
Pay with Cash App, Venmo or Bitcoin using the instructions shown, then tap I Have Paid. That does not mark your order paid — it moves to Awaiting Verification until DSK verifies the payment. Only verified paid orders count toward the group.
DSK group buys combine member demand so larger orders and shared testing costs can be organized across the group. Group buying can improve group pricing and spread fixed costs across more participants.
Each buyer pays one testing fee per group buy, not per kit or vial.
Testing fees first fund primary testing. After primary testing is funded, additional testing fees roll into expedited testing. Members may also voluntarily contribute to expedited testing.
Once both testing goals are funded, additional eligible testing fees build a DSK account-credit pool. Credits are DSK account credit, not automatic cash refunds.
Voluntary expedited-testing contributions are credited back first. After those donations are repaid, the remaining credit is shared equally among eligible group-buy participants, up to each member's eligible testing-fee amount. A donor's normal testing fee receives no special priority.
Independent testing continues separately from fulfillment, so members may receive their kits before final lab results are available. Results are published after they are received and reviewed.
Research use only. Independent testing provides batch-specific information; it does not establish human-use safety or approval.