Returns & refunds

All sales are final. Once a product is sold, we do not accept returns or exchanges — no matter the reason. The only exception is when your order arrives damaged, incomplete, or not what you ordered: write to us within 7 days of delivery with your order number (and a photo if you can), and we will arrange a replacement or a full refund.

This is deliberate. ESYX sells experiments, not obligations — know what you are buying, because the institution does not take it back.

If your order arrives damaged, incomplete, or simply not what you ordered, tell us within 7 days of delivery with a photo if you can. We will arrange a replacement or a full refund, including any shipping you paid.

Refunds are only issued for damaged, incomplete, or wrong orders — never for change of mind. Approved refunds go back to the original payment method; your bank may take a few days to show it. Orders paid for in cash on delivery are refunded by bank transfer.

Write to support@esyx.in with your order number and what went wrong. Questions about an order or a product — write to support@esyx.in and a person will reply within one working day.