We ship to addresses in the United States, free and with tracking. Current delivery times are in our Shipping Policy.

Most orders arrive in 4 to 7 business days (Monday to Friday). Each product page shows the estimated delivery dates above the Add to cart button. You get a tracking link by email as soon as your order ships.

You can return unopened products within 30 days of delivery for a refund of the product price. Email us first; the return shipping is paid by you. If a product arrives damaged, defective or wrong, email us a photo and we'll replace or refund it at no cost to you. The details are in our Refund Policy.

No. Every order is a one-time purchase. You won't be charged again unless you place a new order.

A COA is a lab report for one production batch. It shows which tests were done and the results. Email us the lot number on your package and we'll send you the certificate for your batch. Want to see it before you buy? Email us and we'll send the certificate for the batch we're shipping now.

Talk to your doctor or pharmacist first if you take medication, are pregnant or breastfeeding, or have a medical condition. Every product page lists its own warnings.

Yes. Payments go through Shopify's encrypted checkout. We never see your full card number.

Use the tracking link in your shipping confirmation email, or enter your tracking number on our Track your order page. No email? Check your spam folder or email us.

Mavrena is an online store operated by EYM MANAGEMENT LLC, 1351 Flatbush Ave, Brooklyn, NY 11210, United States. Our contact details are also at the bottom of every page.

Email support@mavrena.shop or call +1 716-300-1335. We reply to every email within 1 business day (Monday to Friday).