tiergain
Supplement bundle tactics that lift AOV in 2026
Your customers buy one bottle and wait for it to run out. Stack bundles turn 30-day orders into 90-day commitments.
$54
Median supplement AOV
$98
Top quartile with stack bundles
35%
AOV lift from complementary stack bundles
Supplements are built on stacking. If you sell single bottles, you are fighting the category logic.
The hacks
Complementary stack bundles for health goals
Energy stack: B12 + Iron + CoQ10. Sleep stack: Magnesium + Melatonin + L-Theanine. Bundle by outcome, not by ingredient. Customers buy the goal.
Mix-and-match across supplement categories
Let customers pick any 3 supplements from the full line at a bundle price. Tiergain handles cross-category mix-and-match where each step has different rules - one vitamin, one mineral, one specialty.
Volume tiers for 90-day supply orders
30-day supply at $34. 60-day at $62 (save 9%). 90-day at $85 (save 17%). The 90-day option is the anchor. Most customers pick it because the per-day cost drops significantly.
Free shipping at $79 for supplement stores
Median supplement AOV is $54. Set the threshold at $79. One more bottle closes the gap. Supplements are light to ship, so the threshold math works in your favor.
Starter kit + refills for new supplement customers
First order: starter kit with 3 core supplements at an intro price. Reorders: volume-discounted refill bundles. Tiergain handles starter kit + refills with different discount rules per step.
Post-purchase upsell with complementary supplement
Bought the protein powder? Show the BCAA recovery supplement right after checkout. Supplement buyers understand stacking. The next product feels logical.
Name stacks after goals, not ingredients
A "Deep Sleep Stack" outsells a "Magnesium + Melatonin + L-Theanine Bundle" by 2.3x. Customers buy outcomes. Name every bundle after the health goal it supports.