– Authorised Retailer –
Interstellar Goods is an authorised retailer and official Singapore partner of Determinant. All our products are guaranteed genuine
Plastic Mask Holders? NAY!
Say goodbye to single-use paper and plastic mask holders. The DET Mask Envelope is made of 100% cotton, featuring the same anti-bacterial and water-repellent treatment as the DET30™. Now you can keep your DET30™ clean and fresh while on the go.
Cotton also means it's easily washable, too. Big win.
Unimposing and Easily Kept Away.
Simply fold them up like a handkerchief when not in use. Mask Envelopes are made for the DET30™ masks BUT can be used for your other face masks as well!
Enjoy $3 off when you add at least 1 DET30™ Mask and 1 DET30™ Mask Envelope to your order
Looking to get the DET30™ Face Masks? Click Here!
Use code "DETBUNDLE" at checkout!
We know how much you hate to pay for delivery. At Interstellar Goods, delivery across Singapore is always free no matter your order size.
And we send it right to your doorstep.
Our team works tirelessly to ensure 90% of our shipments reach customers within 2 working days. We also include a free re-delivery should you have a sudden change of plans.
$3.90 Express Delivery
Need an order urgently? Get your items delivered same-day (for orders placed before 12pm) or by the next with our $3.90 express delivery.
For super urgent deliveries, reach out to us @ 9061 6593 and we may be able to arrange delivery within 5 hours.
Free 21-Day Returns
An item does not meet your expectations? No problem, just send it back.
We firmly stand by our 21-day return policy, no questions asked. Returned products must be in their original packaging and a refund will be processed within 3 working days of our receipt. All returns are never resold, but are instead donated or given to our staff at a second-hand discount.
Support, 7 Days A Week
Need to ask a question or talk to someone about an issue? We're available via WhatsApp (+6590616593)(+65 9061 6593) / email / call until 8pm all 7 days a week.