Best Klaviyo Agency for Supplement Brands
We run Huge Win Media, one of the picks below, so we are biased. Facts about other agencies come only from their own websites, and we say when another option fits you better.
- Best for published pricingHuge Win Media
- Best for big supplement brandsUnderground Ecom
- Best for established 7-figure brandsFlowCandy
The picks at a glance
| Option | Best for | Price |
|---|---|---|
| Huge Win Media (us) | Supplement brands on a fixed budget | From $1,000/mo. Flows from $3,500 one-off |
| Underground Ecom | Large supplement brands | Not published |
| FlowCandy | Established 7-figure supplement brands | Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo |
| FlowCandy Insiders (coaching) | Running Klaviyo yourself with coaching | $395/mo (Insiders) |
Why supplement brands need a different email program
Supplements are a repeat purchase. A customer who finishes a 30-day tub either reorders or quietly switches brands, so email revenue lives in the replenishment window more than in the first sale.
Claims are regulated, so copy has to sell without overpromising. Agencies used to beauty or fashion copy often get this wrong.
What email has to do for supplement brands
Replenishment timing
Time reorder reminders to the real usage cycle of each product, not a fixed day count.
Subscription conversion
Move one-time buyers onto subscribe-and-save with honest value, not pressure.
Bundles and cross-sell
Recommend products that are used together, based on what the customer already takes.
What our published evidence shows
Ask for a replenishment and subscription plan matched to your products, plus a review of permitted claims. The published dashboard does not document those tactics or prove a particular flow caused the change.
CA$941 to CA$2,974 in monthly email revenue for a Canadian supplement brand
| Dashboard measure | February 1–29, 2024 | May 1–31, 2024 |
|---|---|---|
| Total store revenue | CA$5,127.90 | CA$11,063.21 |
| Email-attributed revenue | CA$941.16 | CA$2,973.70 |
| SMS-attributed revenue | CA$0.00 | CA$57.72 |
| Email + SMS attributed revenue | CA$941.16 | CA$3,031.42 |
| Email + SMS attributed share of store revenue | 18.35% | 27.40% |
| Flows, all displayed channels combined | CA$501.52 | CA$2,044.09 |
| Campaigns, all displayed channels combined | CA$439.64 | CA$987.33 |
The headline rounds the email row to the nearest Canadian dollar. The May total of CA$3,031.42 includes SMS; 27.40% is the combined attributed share, not email alone. Flow and campaign totals also include both displayed channels.
The dashboard compares a February of 29 days with a May of 31 days. It does not establish a daily-normalized comparison, a continuous growth trend or incremental lift caused by HWM.
Attribution settings, margins, promotions and a detailed implementation log are not disclosed in these slides. We have not filled those gaps with assumed flow names or campaign counts.
Original Klaviyo dashboard comparison: February and May 2024 · Original case overview
The picks
1. Huge Win MediaThat's us
Best for supplement brands on a fixed budget.
A Canadian supplement brand's published dashboard shows CA$941.16 in email-attributed revenue in February 2024 and CA$2,973.70 in May 2024. The higher CA$3,031.42 total includes SMS.
- Watch out
- A team of about a dozen, not a Master Elite partner. Every account's strategy is set by Emma, our CEO, who has run email for ecommerce brands since 2018.
- Price
- From $1,000/mo. Flows from $3,500 one-off
2. Underground Ecom
Best for large supplement brands.
Underground Ecom lists AG1 among its clients and has 120+ retention marketers.
- Watch out
- Aimed at fast-growth and enterprise brands. Pricing not published.
- Price
- Not published
3. FlowCandy
Best for established 7-figure supplement brands.
FlowCandy lists Kachava and Nutrabolt among its clients and publishes monthly management from $5,995/mo.
- Watch out
- Requires an established brand over 7 figures a year.
- Price
- Monthly Management from $5,995/mo. Accelerator from $8,500/mo. FlowCandy Insiders coaching $395/mo
4. FlowCandy Insiders (coaching)
Best for running Klaviyo yourself with coaching.
FlowCandy Insiders is $395/mo with no long-term contract, per its site. You do the work, they coach.
- Watch out
- You still need someone on your team with time to build and send.
- Price
- $395/mo (Insiders)
Our pick
If you are under 7 figures, start with Huge Win Media's flow build and get replenishment right first. If you are a large brand and want a full CRM program, look at Underground Ecom or FlowCandy.
What we would do today
- Find your most-sold SKU and how many days a customer takes to finish it. That number is your reorder email timing.
- Check your cart and browse flows for claim language your compliance team would flag.
- Count how many one-time buyers you have from 60 to 120 days ago. That is your subscription and winback audience.
- Want a second opinion? Book a free 30-minute Klaviyo audit.
Questions
What is the best Klaviyo agency for supplement brands?
For brands on a fixed budget, Huge Win Media publishes its pricing and has a Canadian supplement case with email-attributed revenue of CA$941.16 in February 2024 and CA$2,973.70 in May 2024. These are observed monthly figures, not a forecast. Large brands may prefer Underground Ecom (clients include AG1) or FlowCandy (clients include Kachava and Nutrabolt).
Which Klaviyo flows matter most for supplements?
Replenishment reminders timed to real usage, subscription conversion, post-purchase education, and winback for lapsed buyers.
Do supplement brands need SMS?
SMS can help with reorder reminders, but email does most of the work for education and cross-sell. Huge Win Media offers SMS as an add-on on Klaviyo.
More agency comparisons and buying guides
Sources and how this page was checked
Facts about other agencies come only from their own websites, checked October 2026. Where an agency does not publish a price or number, we say so instead of guessing. Spot something out of date? Email emma@hugewinmedia.com and we will fix it.
Sources: flowcandy.com homepage · FlowCandy services and pricing · undergroundecom.com homepage · Huge Win Media pricing · About Huge Win Media · Case studies