PROTEIN & SUPPLEMENTS
Consistency Sells. Make It Automatic.
StackBack is a Shopify supplement subscription app built for India's protein, vitamin, and wellness brands. Launch protein powder subscriptions, vitamin refill plans, prepaid supplement schedules, bundles, flash sales, and try-before-you-buy, all from one platform. No separate apps. No dev work. Go live in under 5 minutes.
Why StackBack Works For Supplements
Supplements only work when customers take them consistently. But a 30-day tub runs out, the customer gets distracted, and the routine breaks. StackBack locks in the refill cycle at the moment of purchase, before the gap happens.
Flexible subscriptions: Prepaid supplement subscriptions (pay once, deliver monthly) or pay-as-you-go vitamin subscriptions (checkout link each cycle); both models from one platform.
Bundles & BYOB: Starter stacks, goal-based bundles (muscle gain, weight loss, immunity), sampler packs, powered by StackBack's bundle builder.
Upsells & cross-sells: Shaker bottles, sachets, flavour add-ons, complementary products added at checkout.
Flash sales: New flavour drops, limited-edition collabs, and clearance events with StackBack's flash sale engine.
Try-before-you-buy: Single-serve sachets or mini tubs that convert to full subscriptions via TBYB.
All native to Shopify: Branded widgets, no duplicate SKUs, no checkout redirects.
The Supplement Growth Problem. And How StackBack Solves It.
Supplement customers churn for one reason: they break the routine. The tub runs out on day 30, they don't reorder immediately, and by day 35 they've lost momentum. Most supplement brands in India fight this with discount codes and WhatsApp reminders: reactive tactics that work once but don't scale into a protein supplement subscription service.
StackBack turns this into a system:
Lock in the refill with visible subscription plans on every product page: 30, 60, or 90-day cycles matched to tub sizes.
Stack the routine with bundles: protein + creatine + multivitamin as one subscription, one checkout, one delivery.
Reward consistency with milestone freebies: a free shaker on the 3rd order, free flavour upgrade on the 6th.
Impact: Predictable revenue. Lower churn. A supplement subscription model that compounds because the customer never falls off the routine.
PROTEIN & SUPPLEMENTS
Consistency Sells. Make It Automatic.
StackBack is a Shopify supplement subscription app built for India's protein, vitamin, and wellness brands. Launch protein powder subscriptions, vitamin refill plans, prepaid supplement schedules, bundles, flash sales, and try-before-you-buy, all from one platform. No separate apps. No dev work. Go live in under 5 minutes.
Why StackBack Works For Supplements
Supplements only work when customers take them consistently. But a 30-day tub runs out, the customer gets distracted, and the routine breaks. StackBack locks in the refill cycle at the moment of purchase, before the gap happens.
Flexible subscriptions: Prepaid supplement subscriptions (pay once, deliver monthly) or pay-as-you-go vitamin subscriptions (checkout link each cycle); both models from one platform.
Bundles & BYOB: Starter stacks, goal-based bundles (muscle gain, weight loss, immunity), sampler packs, powered by StackBack's bundle builder.
Upsells & cross-sells: Shaker bottles, sachets, flavour add-ons, complementary products added at checkout.
Flash sales: New flavour drops, limited-edition collabs, and clearance events with StackBack's flash sale engine.
Try-before-you-buy: Single-serve sachets or mini tubs that convert to full subscriptions via TBYB.
All native to Shopify: Branded widgets, no duplicate SKUs, no checkout redirects.
The Supplement Growth Problem. And How StackBack Solves It.
Supplement customers churn for one reason: they break the routine. The tub runs out on day 30, they don't reorder immediately, and by day 35 they've lost momentum. Most supplement brands in India fight this with discount codes and WhatsApp reminders: reactive tactics that work once but don't scale into a protein supplement subscription service.
StackBack turns this into a system:
Lock in the refill with visible subscription plans on every product page: 30, 60, or 90-day cycles matched to tub sizes.
Stack the routine with bundles: protein + creatine + multivitamin as one subscription, one checkout, one delivery.
Reward consistency with milestone freebies: a free shaker on the 3rd order, free flavour upgrade on the 6th.
Impact: Predictable revenue. Lower churn. A supplement subscription model that compounds because the customer never falls off the routine.
Supplement Selling Formats You Can Launch Today
Supplement Selling Formats You Can Launch Today
Subscriptions
Run protein powder subscriptions in India with plans your customers actually want. Choose prepaid protein powder subscription plans or pay-as-you-go vitamin subscriptions:
Monthly Refill: Same product, same flavour, every 30 days; routine on autopilot.
90-Day Stack: 3 tubs upfront (protein + creatine + BCAA) at a prepaid discount.
Vitamin Routine: Daily multivitamin, omega-3, and D3 on a 60-day cycle.
Flavour Rotation: Different protein flavour each month, curated by your brand.
Pay-for-5, Get-6: Prepaid plan with a free sixth delivery.
Bundles & Build-Your-Own Box
Let customers build their own supplement subscription box on Shopify. StackBack's supplement bundle builder powers goal-based stacks, trial kits, and gifting:
Muscle Stack: Whey + creatine + pre-workout at a bundle discount.
Wellness Starter Kit: Multivitamin + omega-3 + ashwagandha for new supplement users.
Supplement Gift Box: Premium stack with shaker and branded merch.
Build-a-Box: Pick 3–5 products, choose sizes and flavours, set a delivery schedule.
Sample Pack: Five single-serve sachets across your bestselling flavours.
Upsells & Cross-Sells
Turn single-product buyers into full-stack customers:
Shaker Bottle Add-On: Branded shaker with every first subscription order.
Flavour Sampler: 3 single-serve sachets of new flavours as a one-click add-on.
Complementary Stack: Creatine recommendation for whey subscribers, omega-3 for multivitamin subscribers.
Flash Sales
Create urgency around new launches, seasonal goals, and limited editions:
New Year Fitness Drop: January stack deals with countdown timers.
New Flavour Launch: 48-hour early access for active subscribers.
Clearance Event: Short-dated stock at steep discounts with quantity caps.
Subscriptions
Run protein powder subscriptions in India with plans your customers actually want. Choose prepaid protein powder subscription plans or pay-as-you-go vitamin subscriptions:
Monthly Refill: Same product, same flavour, every 30 days; routine on autopilot.
90-Day Stack: 3 tubs upfront (protein + creatine + BCAA) at a prepaid discount.
Vitamin Routine: Daily multivitamin, omega-3, and D3 on a 60-day cycle.
Flavour Rotation: Different protein flavour each month, curated by your brand.
Pay-for-5, Get-6: Prepaid plan with a free sixth delivery.
Bundles & Build-Your-Own Box
Let customers build their own supplement subscription box on Shopify. StackBack's supplement bundle builder powers goal-based stacks, trial kits, and gifting:
Muscle Stack: Whey + creatine + pre-workout at a bundle discount.
Wellness Starter Kit: Multivitamin + omega-3 + ashwagandha for new supplement users.
Supplement Gift Box: Premium stack with shaker and branded merch.
Build-a-Box: Pick 3–5 products, choose sizes and flavours, set a delivery schedule.
Sample Pack: Five single-serve sachets across your bestselling flavours.
Upsells & Cross-Sells
Turn single-product buyers into full-stack customers:
Shaker Bottle Add-On: Branded shaker with every first subscription order.
Flavour Sampler: 3 single-serve sachets of new flavours as a one-click add-on.
Complementary Stack: Creatine recommendation for whey subscribers, omega-3 for multivitamin subscribers.
Flash Sales
Create urgency around new launches, seasonal goals, and limited editions:
New Year Fitness Drop: January stack deals with countdown timers.
New Flavour Launch: 48-hour early access for active subscribers.
Clearance Event: Short-dated stock at steep discounts with quantity caps.
Customer Portal Built For Supplement Users
Customer Portal Built For Supplement Users
Give customers full control without support tickets. StackBack's self-service portal is tailored for supplements subscription management:
Give customers full control without support tickets. StackBack's self-service portal is tailored for supplements subscription management:
Switch flavour, change tub size, update delivery frequency
Stack or unstack products within a single subscription
Pause during travel, skip a delivery, reschedule
One-click renewals and "reorder last" shortcuts
Milestone rewards (e.g., free shaker on 3rd order, free upgrade on 6th)
Go Live In Under 5 Minutes
Go Live In Under 5 Minutes
Step 1: Install Add StackBack from the Shopify App Store. Works with your current supplement SKUs, flavour variants, and tub sizes. No duplicate products.
Step 2: Create Set up supplement subscription plans: prepaid, pay-as-you-go, or both. Add bundles, configure upsells, schedule a flash sale. The subscription widget auto-deploys on your product pages.
Step 3: Sell Customers see subscription options alongside one-time purchase on your PDP. Orders flow through Shopify's native checkout. Fulfilment stays in your existing workflow.
Built For Your Store
Built For Your Store
Native Shopify checkout, no redirects
No duplicate products or OMS workarounds
Branded widgets that match your theme
Setup and go live in under 5 minutes
Shipping rules synced with your Shopify configuration
Inventory sync across flavour variants, tub sizes, and bundle stacks
Frequently Asked Questions
Frequently Asked Questions
How do I launch a supplement subscription on my Shopify store in India?
Can I sell prepaid protein powder and vitamin subscriptions on Shopify?
Can customers build their own supplement stack as a subscription?
Can customers switch flavours or change tub sizes mid-subscription?
Does StackBack work with Razorpay and Cashfree for supplement subscriptions in India?
How do I launch a supplement subscription on my Shopify store in India?
Can I sell prepaid protein powder and vitamin subscriptions on Shopify?
Can customers build their own supplement stack as a subscription?
Can customers switch flavours or change tub sizes mid-subscription?
Does StackBack work with Razorpay and Cashfree for supplement subscriptions in India?
The Routine Only Works If The Refill Doesn't Stop.
The Routine Only Works If The Refill Doesn't Stop.
Install StackBack and turn supplement reorders into automatic subscriptions.
India's only Customer Lifetime Experience Engine for Indian D2C Brands. D2C tools and solutions were all made in the west, for a global standardised usage profile. Indian businesses and customers are fundamentally different. Yet no one solved for this. Until now. StackBack powers your revenue growth through subscriptions, bundles, upsells, try-before-you-buy, flash-sale campaigns and more, all activated in minutes.
Copyright © 2026 U.Labs. All rights reserved.
India's only Customer Lifetime Experience Engine for Indian D2C Brands. D2C tools and solutions were all made in the west, for a global standardised usage profile. Indian businesses and customers are fundamentally different. Yet no one solved for this. Until now. StackBack powers your revenue growth through subscriptions, bundles, upsells, try-before-you-buy, flash-sale campaigns and more, all activated in minutes.
Copyright © 2026 U.Labs. All rights reserved.