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Shipping & Store Policy

Shipping

We ship everywhere in the United States via USPS. Standard shipping is a flat $6.95 (3–5 business days) and is free on orders of $100 or more. Orders placed before 2 PM Central on a business day typically ship the same or next business day, and you will receive tracking by email the moment your label is created.

Note: peptide protocol orders arranged through your provider ship separately under their own cold-chain shipping terms — this page covers our online store (pens, cartridges, and supplies) only.

All Sales Final

Because our pens, cartridges, and pen needles are sterile medical supplies, all sales are final. Once an order ships, it cannot be returned, exchanged, or refunded — sterile products cannot safely re-enter inventory after leaving our facility.

Damaged or incorrect orders

If your order arrives damaged, defective, or incorrect, contact us at orders@thefunctionalweightloss.com within 48 hours of delivery with a photo, and we will replace the affected items at no cost.

Order changes

Need to change or cancel an order? Email us — changes are possible only before the order ships.

The Peptide Protocol

Clinical peptide science, straight to your inbox.

Dr. Nguyen's research briefings on peptides, GLP-1s, and metabolic health — the mechanisms, the dosing context, and the studies behind them. No hype, no fluff. Unsubscribe anytime.

Free. Educational only — not medical advice.