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Return policy

All refunds and exchanges must be made within 30 days from the purchase of the item(s) and must be unused unless authorized by customer support. It must also be in the original packaging. Several types of goods are exempt from being returned. Perishable goods such as pump oil, filter papers, etc. cannot be returned.

The customer must pay for return shipping on all returns and this cost may be refunded in some cases. No credit or refund will be given for items received damaged so the shipper must package the item(s) well and insure the shipment accordingly. 

All freight shipments or any order shipped over a value of $2000.00 will include a shipment receiver document which outlines the steps to properly receive the shipment. Failure to follow any of these steps may void any claim for damages caused during shipping. Goldleaf cannot be held responsible to repair, replace, or refund any value if any steps are not followed.  

You will be liable for the value of any items shipped as replacements and used or damaged upon return. 

To complete your return, we require a receipt or proof of purchase.


Please do not send your purchase back to the manufacturer.

Restocking Fees

A restocking fee of 20% can be applied to any order delivered and returned for any reason other than a defective product. Goldleaf may perform its own testing to validate the defect or to dispute it. Custom products may incur a restocking fee up to 50% depending on the stage of development. We strive to offer the best service possible and rarely charge a fee, but we must retain the right to do so. A store credit up to the full amount is also available as an alternative solution. 

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at [email protected].

Exchanges (if applicable)
We only replace items if they are defective or damaged.  If you need to exchange it for the same item, send us an email at [email protected] and send your item to: 1498 Zephyr Ave, Hayward, CA, 94544, United States.

To return your product, you should mail your product to: 1498 Zephyr Ave, Hayward, CA, 94544, United States.

You may be responsible for paying for your own shipping costs for returning your item.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.


While Goldleaf Scientific strives to make the information on this website as timely and accurate as possible, Goldleaf Scientific makes no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the contents of this site, and expressly disclaims liability for errors and omissions in the contents of this site.

All content is subject to copyright and may not be reproduced in any form without express written consent of the author.

Goldleaf Scientific cannot be held responsible for damages caused to equipment or the user by use or misuse of products.