NO PURCHASE NECESSARY TO ENTER OR WIN. A PURCHASE OR PAYMENT OF ANY KIND WILL NOT INCREASE YOUR CHANCES OF WINNING. VOID IN PUERTO RICO, U.S. TERRITORIES AND WHERE PROHIBITED.

1. Sponsor. The Mateina BFCM Signed Book Sweepstakes (the "Sweepstakes") is sponsored by Mateina US Inc., 2915 Ogletown Rd, Ste 4652, Newark, DE, 19713, United States ("Sponsor"). Dr. Andrew Huberman, the author of the prize book, is a co-owner of Sponsor. The book's publisher is not a sponsor of, and is not affiliated with, the Sweepstakes.

2. Eligibility. The Sweepstakes is open only to legal residents of the 50 United States and the District of Columbia who are at least 18 years old and the age of majority in their state of residence at the time of entry. Void in Puerto Rico, Guam, the U.S. Virgin Islands and all other U.S. territories and possessions, and wherever prohibited or restricted by law. Employees, officers, directors and owners of Sponsor, its parent companies, affiliates and subsidiaries, its advertising, promotion and fulfillment agencies, and anyone involved in running the Sweepstakes (together, the "Promotion Entities"), and the immediate family members (spouse, parents, siblings, children) and household members of each, are not eligible.

3. Sweepstakes Period. The Sweepstakes begins at 12:00:00 a.m. Eastern Time ("ET") on November 15, 2026 and ends at 11:59:59 p.m. ET on December 8, 2026 (the "Sweepstakes Period"). Sponsor's computer is the official clock.

4. How to Enter. There are two ways to enter, and each gives you the same single entry.

(a) Order entry. Place an order on drinkmateina.com during the Sweepstakes Period and you will be entered automatically. Recurring subscription orders processed during the Sweepstakes Period count. Orders placed on Amazon, in stores or through any other channel do not earn an entry. Canceling or returning an order does not remove your entry. If you do not want your order to enter you, email paul@drinkmateina.com before the Sweepstakes Period ends.

(b) Free entry. Visit https://drinkmateina.com/pages/bfcm-signed-book-sweepstakes-form during the Sweepstakes Period, complete the entry form with your first and last name, email address and state of residence, and confirm that you are eligible and accept these Official Rules. Joining Sponsor's email list is optional and is not required to enter.

Limit: one (1) entry per person and per email address for the entire Sweepstakes Period, however you enter and however many orders you place. Additional entries are disregarded. Entries made by script, bot or other automated means, or by anyone other than the entrant, are void. Incomplete, late or undelivered entries are void, and proof of submission is not proof of receipt.

5. Prizes. Five (5) prizes will be awarded. Each prize is one (1) hardcover copy of Protocols: An Operating Manual for the Human Body by Dr. Andrew Huberman, signed by the author. Approximate retail value ("ARV") of each prize: $35.00 USD. Total ARV of all prizes: $175.00 USD. Prizes ship free to a street address in the eligible area within about four (4) weeks after the winner is confirmed. Prizes cannot be transferred or exchanged for cash or other items, except that Sponsor may substitute a prize of equal or greater value if a prize becomes unavailable. Any taxes are the winner's responsibility. Limit one (1) prize per person and per household.

6. Winner Selection and Odds. On or about December 14, 2026, Sponsor will select five (5) potential winners in a random drawing from all eligible entries received during the Sweepstakes Period. Sponsor's decisions are final. Odds of winning depend on the number of eligible entries received.

7. Notification. Potential winners will be notified by email on or about December 14, 2026 and must reply within five (5) days with a U.S. mailing address and confirmation of eligibility. Sponsor may require a signed declaration of eligibility and release. If a potential winner does not reply in time, cannot accept the prize or is found ineligible, or if the notification is returned as undeliverable, that prize is forfeited and Sponsor may select an alternate winner at random from the remaining eligible entries.

8. Publicity. Except where prohibited by law, by accepting a prize each winner allows Sponsor to use their first name, last initial, city and state to announce the winners, without further compensation.

9. Release. By entering, you agree to these Official Rules and to Sponsor's decisions, and you release Sponsor, the Promotion Entities and their respective officers, directors, employees and agents (the "Released Parties") from any liability for injury, loss or damage of any kind arising from the Sweepstakes or from accepting or using a prize.

10. General Conditions. Sponsor may cancel, suspend or modify the Sweepstakes if fraud, technical failure or any other cause beyond its control affects its integrity or proper operation. In that case, Sponsor may award the prizes by random drawing from the eligible entries received before the action. Sponsor may disqualify anyone who tampers with the entry process or breaks these Official Rules. The Released Parties are not responsible for lost, late, incomplete or misdirected entries, or for technical failures of any kind.

11. Disputes and Governing Law. These Official Rules are governed by the laws of the State of Delaware, without regard to its conflict-of-law rules. Except where prohibited, any dispute will be resolved individually, without any class action, in the state or federal courts located in New Castle County, Delaware.

12. Privacy. Information you provide is collected by Sponsor and used to run the Sweepstakes, including contacting winners and shipping prizes, as described in Sponsor's Privacy Policy at https://drinkmateina.com/policies/privacy-policy. Sponsor will send you marketing emails only if you opted in separately.

13. Social Media. The Sweepstakes is in no way sponsored, endorsed or administered by, or associated with, Facebook, Instagram, Meta Platforms, Inc. or Google. By entering, you release them from any liability related to the Sweepstakes.

14. Winners List. For the winners' names (first name, last initial and state), email paul@drinkmateina.com with the subject line "BFCM Book Sweepstakes Winners" between January 15, 2027 and March 31, 2027.

15. Separate Promotions. This Sweepstakes is separate from Sponsor's contest for residents of Canada.