Supplement Merchant Compliance: Avoiding Claims That Kill Your Processing Account

Supplement merchants operate in one of the most heavily scrutinized categories in payment processing. The same website content that drives sales — bold health claims, dramatic before/after testimonials, urgency tactics — can trigger card network compliance violations that end your ability to accept payments. This guide covers what supplement merchants need to do to stay compliant and protect their processing accounts.

FDA Claim Rules for Supplement Merchants

The FDA distinguishes between three types of product claims, with very different rules for each:

• Disease claims (prohibited without drug approval): Claims that a product treats, cures, mitigates, or prevents a specific disease. Examples: “lowers blood pressure,” “treats depression,” “prevents cancer.” Making disease claims on a supplement product without FDA drug approval is a violation that triggers both FDA enforcement risk and payment processor compliance issues.
• Structure/function claims (permitted with disclosure): Claims about how a product affects the body’s structure or function. Examples: “supports heart health,” “promotes healthy joints,” “helps maintain normal blood sugar levels.” These are permitted for supplements, but must be accompanied by the required disclaimer: “This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.”
• Nutrient content claims (permitted with rules): Claims about the presence of nutrients. Examples: “high in vitamin C,” “low in sodium.” These are permitted but must meet specific FDA standards for the descriptor used.

LegitScript Certification for Supplement Merchants

LegitScript certification demonstrates to your payment processor and card networks that your business operates compliantly. For supplement merchants, LegitScript reviews your website claims, product labels, ingredients, and marketing materials. Getting certified before applying for payment processing significantly improves approval outcomes. See our LegitScript certification guide for full details on the process.

Checkout Compliance for Supplement Merchants

• Subscription disclosure: If you offer a subscription or auto-ship program, the terms must be clearly disclosed before checkout completion — amount, frequency, and cancellation process. Negative option / buried continuity disclosures are one of the top triggers for both chargebacks and BRAM violations.
• Return policy visibility: Display your return policy prominently on the checkout page and in order confirmation emails.
• No deceptive urgency: Fake countdown timers and false stock scarcity are both marketing tactics that trigger BRAM findings.

ConvesioPay for Supplement Merchants

ConvesioPay works with supplement merchants and provides guidance on maintaining compliant operations. We review merchant websites as part of ongoing account management and proactively flag potential compliance issues before they become card network findings. Supplement merchants with LegitScript certification and clean website practices are well-positioned to apply — though approval is evaluated on individual merits. Pricing: 2.9% + $0.30, no monthly fees.