Frequently Asked Questions


Shipping & Returns


We ship all orders US Postal Service.

It usually takes between 3-5 business days to get your package from when your order was placed. Orders placed on Fridays may take longer to process as they will be received the following Monday. Orders placed at the very beginning of the month may also take longer to process.

If you have any questions, please e-mail us at customerservice@keystone-labs.com.

Yes, we do. For details, please contact customerservice@keystone-labs.com.

Please contact customerservice@keystone-labs.com to obtain a Return Authorization Number before you ship.

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