Every OkaSciences user account has its own unique referral link. You can send this referral link to as many of your friends as you'd like. When your friend creates a new OkaSciences user account, he or she will receive a free sample, shipping included. You'll also receive a free sample for every person who opens an account using your referral link. Alternatively, if you choose not to claim your free sample immediately, you can wait until your referral link has been used ten times. After ten referrals, you can claim a $500 gift card from one of our selection of retailers. While we love them too, pets, minors, and imaginary friends don't qualify.

And now the legalese our lawyers force upon us: A "qualified referral" is a new member of okasciences.com referred by you that signs up at okasciences.com during the Promotion Period and complies with the rules set forth below. A qualified referral must be generated using (i) your custom referral link, (ii) the invitation forms on this page or (iii) other methods supplied by okasciences.com that allow for proper tracking of referrals.

Only institutional email addresses are accepted when creating a new OkaSciences user account. The following is a non-exhaustive list of activities that are not permitted and that will disqualify you from earning a referral: (i) self-referral, (ii) keyword bidding for the purpose of generating traffic to pages containing your referral link, and (iii) any similar activity determined by okasciences.com in its sole discretion to be inconsistent with the purpose of the okasciences.com Refer-A-Friend Program. OkaSciences decisions are final. You are responsible for any applicable taxes. This Referral Bonus Promotion is open only to individuals who are at least eighteen (18) years of age.

OkaSciences reserves the right to review all referrals and to deny, withhold, or cancel any bonuses for any referrals that okasciences.com deems, in its sole discretion, as fraudulent, abusive, unethical, suspicious or otherwise inconsistent with these Referral Program Terms or any other applicable law or regulation. OkaSciences decisions are final. OkaSciences reserves the right to suspend or terminate the Referral Program or to change these Referral Program Terms at any time and for any reason in its sole discretion.

¹Please note it may take 3 -4 weeks for your referral to be approved and update to your account.