How a 12-brand SARMs research operator stopped being locked out of every major acquirer

The operator runs 12 SARMs research chemical brands, each targeting a slightly different customer segment — bodybuilding-forum customers, longevity-enthusiast customers, research-lab customers, veterinary-adjacent customers. Combined portfolio revenue runs about $5.8M/yr.

SARMs (selective androgen receptor modulators) are one of the hardest verticals in payments. Legally they're sold as research chemicals — same fig leaf as peptides — but every major acquirer's policy explicitly excludes them. Stripe, Square, Authorize.net, PayPal, Braintree, WePay, and Adyen had all declined the operator in application reviews over the prior 24 months. Not because of any specific incident — because of the vertical code.

The operator had been processing through rotating payment aggregators — smaller payment companies that would run SARMs through their own acquirer infrastructure at a 4–5% markup above base processing rates. The blended effective rate across the portfolio was sitting at 10.2%, which is brutal even by high-risk-vertical standards. On $5.8M/yr of processing that's roughly $590k/yr in processing fees alone.

Stability was worse. Each aggregator would run the volume for 3–6 months, then get uncomfortable (usually after a compliance audit on their side), and give the operator 30 days to migrate. In 24 months the operator had rotated through 4 aggregators. Each rotation cost roughly 3 weeks of team time and usually involved a short outage for one or more brands during the handoff.

In Q2 2024 the operator was in the middle of launching a new SARMs variant across 3 of the 12 brands simultaneously — a coordinated push timed to a bodybuilding trade show, $60k committed in influencer spend, inventory pre-positioned in the 3PL. Five days before launch the current aggregator sent a termination letter. They'd been hit with a compliance review by their upstream acquirer and needed to drop SARMs processing immediately.

The operator had 30 days to migrate 12 brands to a new payment solution. He spent the first week calling every aggregator he'd worked with previously; most said no (they'd tightened policies in the same quarter). One said yes but wanted 6% markup, which would push blended rates to 11%+.

A high-risk payments consultant — someone the operator had worked with briefly in the past — introduced him to multiflow. The pitch was different from the aggregator pitch: multiflow partners with three specialist acquirers that explicitly underwrite SARMs. The rate would still be high (7%+ territory) but it would be on a real acquirer relationship with 12-month contract stability, not a 90-day-rotation aggregator.

The acquirer conversation took 7 business days — longer than the multiflow average because the specialist acquirer required a full KYB refresh on the operator's master LLC, 18 months of processing history from the aggregators, and a catalog compliance review across all 12 brands.

Day 1–3: Catalog compliance rewrite. Every product page across 12 brand Shopify stores had to meet the specialist acquirer's compliance envelope: "not for human consumption" language, no dosing recommendations, no stacking protocols, no bodybuilding-outcome claims, no before/after imagery implying use. The operator's copy team spent three full days rewriting roughly 380 product pages. multiflow's implementation engineer reviewed each page before the acquirer saw it to minimize review cycles.

Day 4–5: Brand inventory and descriptor mapping. 12 brands, current descriptor strings, Apple Pay domain status. Cleanup of several stale descriptor registrations from previous aggregator migrations.

Day 6: COA tracking consolidation. SARMs operators need batch-level COAs for the specialist acquirer's compliance file. The operator had COAs in 3 different systems (Dropbox, Google Drive, one 3PL portal). Consolidated into the multiflow dashboard, per-batch, with expiration monitoring.

Day 7: Apple Pay / Google Pay re-verification across 12 domains on the new parent. This took the longest — Apple Pay domain review for newly-registered descriptors on high-risk acquirers runs 48–72 hours, sometimes up to 5 business days.

Day 8: Test transactions. 48 live $1 charges across 12 brands (4 per brand, testing different card types), 12 refunds, 5 chargeback simulations. All clean.

Day 9: Cutover. Webhook URLs switched across 12 Shopify stores to the multiflow parent. The prior aggregator stayed active for 72 hours in "refund-only" mode so pending refunds on the old infrastructure could complete.

Day 10: Launch. The 3-brand SARMs variant launch went live on day 10 of the cutover — on the new parent, on the specialist acquirer, with correct descriptors and full compliance review behind it. $74k in GMV in the first 96 hours of the launch window.

14 months post-cutover and the operator is still on the same specialist acquirer. Zero rotations. Zero termination notices. One contract, one relationship, one rate.

The per-transaction rate moved from a blended 10.2% (rotating aggregators at 4–5% markup above base) to 7.5% on the specialist parent. On $5.8M/yr of processing that's $156,600/yr in rate savings alone. Add roughly $12k/yr in recovered ops time (previously spent on aggregator rotations, now redirected) and the cutover was net-positive $168k/yr versus the prior state.

The product launch that triggered the whole conversation hit its 12-month projected numbers in 8 months. The operator expanded from 12 brands to 15 over the 14-month post-cutover window, each new brand added as a descriptor under the existing parent in under 2 weeks versus the 4–6 weeks that aggregator-era expansions took.

Chargeback ratio moved from 0.7% (averaged across aggregators, each of which had its own risk profile) to 0.5% under the consolidated representment workflow. Win rate on disputes improved from 31% to 58%.

The operator is clear about what multiflow did for him: it didn't solve the underlying acquirer-policy problem for SARMs. SARMs are still declined by every major acquirer by default. What multiflow did was route him to the specialist acquirers that do underwrite the vertical, consolidate 12 brands under one of those relationships, and build the compliance-review process that made the acquirer confident enough to keep the parent active.

He's candid about the trade: the compliance envelope on the specialist acquirer is tighter than what he'd been running on aggregators. No stacking protocols, no bodybuilding outcome claims, no influencer content implying use — all of which cost him some marketing ground on the aggressive-marketing brands in the portfolio. The trade was worth it: stable acquirer versus lower blended rate.

His quote at the top is the one he wanted in the hero. He added in the interview: "14 months of not thinking about payments at all is the single best gift you could give a high-risk operator."