How do I activate the labseries.com Earn 5% Back?

Log into your Citi account, navigate to offers, add the labseries.com offer to your card, then shop at labseries.com to earn rewards.

When does the labseries.com offer expire?

This labseries.com offer expires on December 9, 2025.

What Citi cards work with labseries.com offers?

Most Citi credit cards are eligible. Check your Citi account offers section.

labseries.com Earn 5% Back - Citi Credit Card Cashback Rewards Offer 2026

Offer Details

Merchant:: labseries.com
Description:: Earn when you shop online with your linked card at Lab Series. Only US-issued payment cards are eligible to enroll and earn. Online purchases made with a virtual card may not qualify for cashback rewards. Offer not valid for gift card purchases. Online offers are not valid for in store purchases and may not be combined with other Citi offers. Offer may be displayed on multiple websites but is redeemable only once per qualifying transaction. If you link to the same offer on more than one site, your qualifying transaction will only be eligible for rewards or benefits associated with the offer through the most recently linked site. Limit 1 redemption per offer link. A linked offer that has not been redeemed will automatically expire 75 days after it is linked or re-linked, or on the date the offer itself ends, whichever is sooner. We may, in our sole discretion, suspend or deny your eligibility for all or part of the merchant offers program at any time without advanced notice to you.
Bank:: Citi
Expires:: December 9, 2025
Added:: September 25, 2025
Seen on:

How to Get This Offer

Log into your Citi credit card account
Navigate to the offers or deals section
Add this labseries.com offer to your card with Offer.love extension
Shop at labseries.com using your enrolled card
Earn automatic cashback or statement credits

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