The consumables problem
Warranty hooks don't work on a protein tub. But supplements have the highest reorder intent of any category — which makes a next-order coupon the natural claim: customers want the discount, and the claim window doubles as a reorder reminder.
The playbook
- Coupon insert: "Scan for 15% off your next order" — claimed immediately, redeemable from day 10.
- Review ask at day 14–21, when the customer can speak to results and is approaching reorder.
- Compliance-first copy: supplements are a high-scrutiny category on Amazon; keep the reward strictly attached to the claim, never the review.
Category notes
Health claims in review-ask copy ("tell us how much better you feel") can trip marketplace policy — keep the ask generic: "share your honest experience." Batch-specific QR codes also let you catch quality complaints per production lot before they become review clusters.