Know the format and storage requirements before placing an order.
UK orders
Free next-day UK delivery when ordered before 11am. The pen and cartridges are sent with tracking and thermally protective packaging.
Refrigerated products
Refrigerate the pre-filled pen and NAD+ cartridges promptly on arrival at 2–8°C. Do not freeze. Keep oral strips cool and dry, protected from light and moisture, in the original packaging.
Damaged, incorrect or incomplete orders
Email info@nadflow.co.uk promptly with your order number, a description of the problem and photographs of the product, packaging and delivery label. Keep the packaging while we investigate. Do not use a product that appears damaged.
Cancellations & returns
Contact NADFlow before sending anything back. Your cancellation and return rights, including any applicable sealed-product exceptions, are set out in our Terms and Conditions. Faulty or misdescribed products remain subject to your statutory rights.