How can I contact your customer support team?

If you can’t find the answer to your question in our FAQ then feel free to send an email to [email protected] and we’d be happy to help with any questions or concerns you may have!

How long does it take to get a response from your customer support team?

We’ll try our best to respond within an hour, but that may not always be possible, so please give our team at least 24 hours to get back to you.

What payment methods do you accept?

We accept all major credit cards, including Apple Pay, Google Pay, PayPal, and Afterpay.

Do you have a “Subscribe and Save” program available?

We do not at the moment, but we are working on introducing this in the future.

Do you have any promo or discount codes? 

We currently don’t have any ongoing promotions! But don’t miss out on any future 373 Lab Sales by following us on social media or subscribe to our newsletter!




Where do you ship from?

The Sunshine State – Florida!

Do you ship internationally?

We only ship to the U.S. and Canada at the moment.

Do you ship APO/FPO/DPO?

Yes, via USPS! And we thank you for your service!

Will I have to pay customs/import fees?

Yes. Canadian orders are subject to customs and duty fees. The fees are not included in your 373 Lab Supplements order and/or shipping total. 373 Lab is not responsible for fees associated with import, and they must be paid by the order recipient.

How much is shipping?

A $5 flat-rate fee applies for all U.S. orders under $50. U.S. orders above $50 qualify for free shipping. Learn more about our Shipping Policy.

I haven’t received my confirmation email, what do I do?

First, check your spam folder! If it’s not there, then please email us at [email protected] with as much information as possible so we can help locate your order and resend your confirmation email.

Can I change or cancel my order?

Yes, as long as it hasn’t been shipped! If any changes need to be made please contact our support team ASAP – [email protected]

How do I track my order?

After your order is shipped, you will receive an email with shipping confirmation that includes your tracking number. If you can’t find this email, please contact our support team at [email protected] so we can locate your order for you.

Why hasn’t my tracking number been updated?

Please allow 24-48 hours for the tracking number to update and load in the system. If your tracking number still hasn't updated, please contact the shipping provider for an update regarding your shipment. If they don’t provide you with tracking information, please contact our support team and we’ll be happy to help resolve this issue for you!

How long will my order take to arrive?

We’ll fulfill your order the same or next business day. Once it’s shipped, depending on location and carrier, it can take anywhere from 2-5 business days for U.S. orders to arrive. However, Canadian orders can take anywhere between 7-20 business days to arrive after the order has shipped.

My order is being shipped back to you, what do I do?

We’re sorry that this happened! Email us as soon as you can so we can investigate and resolve this issue in a timely manner.

My order shows that it was delivered, but I didn't receive it. What can be done about this?

First, double-check your order confirmation email to make sure the shipping address is listed correctly. If everything is correct, the second thing to do is ask your roommates or neighbors just to make sure they didn’t accidentally take it. Still nothing? Then check all the places where your package could’ve been left (like the front desk of your apartment building)!

Fortunately, your package is insured! So, if you still can’t find it, or if you believe it may have been stolen, please file a claim with the appropriate shipping carrier:

If you have any questions or require any additional information - feel free to reach out to our customer support team at [email protected]

My order is being shipped to the wrong address, what can I do?

Please email our support team at [email protected] and let us know if the shipping address entered was incorrect, or if it’s being shipped to a completely different address that you’re not familiar with. Whatever the case is, our team will look into it and try to resolve the issue for you!

I’ve received the wrong product, what do I do?

We’re so sorry about this. Email our support team at [email protected] and please attach a photo of your entire order along with your order number. 

Why is my container half full?

The reason our containers look half full is because if they were any smaller it will overflow during the mixing and filling process. Here's why that may happen...

During the mixing and filling process the powder takes up more volume, they contain the same weight and same servings, but as time goes by the powder begins to settle. When the powder settles the bottles will appear half full, but they still contain the weight and servings advertised on the label. So, don't worry, you're getting the accurate number of servings for all your favorite 373 Lab Supplements!

What is your return policy? 

If you don’t love the 373 Lab Supplements you’ve purchased, contact us within 14 days of receiving the product and we will give you a full refund – no need to return the product back to us! Read our Refund Policy for more information.




Will there be more flavors available in the future?

Yes! Things are barely getting started at 373 Lab, but we’re already working on new flavors for our Protein Powder, Pre-Workout, and BCAA.

Will you carry other supplements in the future?

We’re working on it! We wanted to launch 373 Lab with the essentials – Protein Powder, Pre-Workout, and BCAA. But we’re currently doing vigorous research on other popular supplements to ensure we bring you only the best!

Do you have any samples?

We do not have any at the moment.