Shipping & Returns

Where We Ship

We currently ship within the United States only. If you are an international customer without a US mailing address, please check our Authorized Retailers list to see whether any of our partners ship to your country.

US orders are typically processed and shipped out on the same or next business day. Please allow 3-5 additional business days for ground delivery.

For orders shipping to Alaska and Hawaii, please provide a physical street address for delivery, as we cannot deliver expedited shipments to PO boxes. Due to shipping delays related to COVID-19, please allow up to 4 weeks for delivery.

Orders shipping to APO/FPO addresses may take a bit longer to arrive. Please allow additional time for delivery.

Rates & Delivery 

We offer FREE STANDARD GROUND shipping on all domestic US orders - no promotion code needed! 

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 Shipping Method
*Shipping Time
Standard Ground
3-5 business days
3 Day Shipping
3 business days
$25 flat rate
2 Day Shipping
2 business days when order is placed by 11am ET
$55 flat rate
Next Day Air
1 business day when order is placed by 11am ET
$78 flat rate

*Please note that we ship all orders out on the same or next business day. However, we cannot control any coronavirus-related shipping delays that might occur once your order is in the hands of our carriers. That said, the vast majority of our customers are receiving their orders within the normal delivery windows noted above.

Once your order has shipped, you will receive an email with your tracking number.

Return Policy

GLO Science offers a 30 day, 100% money back guarantee on any product purchased from our website. We'll even cover your return shipping!* If you purchased a GLO Science product from another seller, your purchase is covered under that seller's return policy and should be handled directly with that seller. You can find a list of GLO Authorized Retailers here. 

After 30 days, please refer to our GLO Science One Year Limited Warranty.

To initiate your return within 30 days of delivery, please contact us at or call 855-456-5976 and a customer service representative will be happy to assist you.

*GLO Science will provide prepaid return labels to continental US addresses only. If you live outside the continental US, you will be responsible for shipping your product return back to GLO.