Refund policy

Live products are different. Grow kits and liquid cultures are living things, so we handle them differently from ordinary returns.

Our grow guarantee. If your culture or kit arrives damaged or contaminated, or fails to colonize when used as directed within 60 days of delivery, contact us with a photo and your order number and we will send a free replacement. If a replacement also fails, we will refund your order in full. This is how we stand behind lab-tested products.

What the guarantee asks of you. Store cultures as directed on arrival (cool, out of direct sun; refrigerate syringes), start kits within 30 days of delivery, and follow the directions on the product page. We may ask a few questions about your setup — not to catch you out, but because most failed grows are fixable and our growers can usually save the next attempt.

Non-living supplies (unopened sterile substrate, grain bags, and equipment) may be returned unused in original sealed packaging within 30 days of delivery for a refund, minus return shipping. Opened sterile products cannot be returned — once a seal is broken, sterility cannot be verified.

Refund processing. Approved refunds are issued to the original payment method within 10 business days of approval.

How to reach us. Use the contact page or reply to your order confirmation email. A real grower reads every message, usually within one business day.