There’s no FDA approval to point to, so every supplement buyer is quietly asking the same question: why should I believe what’s on this label?
Starting a supplement company comes down to a handful of decisions made in the right order: what you’ll sell and to whom, who will make it, how you’ll prove what’s in it, what you’re allowed to say about it, and where you’ll sell it. The product itself is often the easy part. Most of the cost sits in minimum orders and testing, and most of the risk sits in labels and marketing claims.
Supplements also carry a trust problem that most ecommerce categories don’t have. There’s no FDA approval to point to, so buyers look for other reasons to believe a brand: a clear label, lab results they can check, a company they can identify. The brands that last tend to build that proof in from the start instead of adding it after the first skeptical review. C60 Power, which built its whole catalog around a single ingredient, is a useful example of that approach, and the sections below come back to it.
If you’re pre-launch, read this top to bottom; the order matters more than any single step. If you already have a product selling, use the claims, testing and channel sections as an audit of what you have live today.
A new supplement brand should launch with one narrow product it can explain in a sentence, because broad categories like multivitamins, protein and greens powders are crowded and new entrants in them usually end up competing on ad spend. A narrower product is easier to explain, easier to build content around and easier for search engines and AI assistants to understand. When every product page, FAQ and lab report supports the same idea, the brand gets clearer with each page you add.
C60 Power shows how far one ingredient can stretch. The company, which began under the name C60 Purple Power, built its catalog around carbon 60, which it sells dissolved in olive, avocado or MCT oil, as gummies, in skincare and in versions for pets. A customer who doesn’t like one format has another way to buy the same thing, and the product line stays easy to explain, because every product answers to the same ingredient.
That example also shows the catch. Skincare is generally regulated as a cosmetic, and the FDA’s Center for Veterinary Medicine has held since 1996 that the federal dietary supplement law does not apply to products for animals, so pet versions fall under animal feed or drug rules instead. Every new category brings its own labeling and claim rules, and its own paperwork.
The practical call for most founders: launch two or three products inside one category, such as one ingredient in two formats, and expand into cosmetics or pet products only once that first line runs smoothly. If you want a sense of where demand is moving before you choose, eCommerce Fastlane’s look at the supplement categories driving the DTC wellness market covers which use cases are pulling buyers in, and its breakdown of why supplements outperform most Shopify categories walks through the margin and repeat purchase economics.
There are two basic routes to manufacturing a supplement, white label and custom formulation, and the choice decides your minimum order, your timeline and whether anyone else can sell the same formula. The terms get used loosely, but white label (often called private label) means you sell a manufacturer’s existing formula under your brand, usually with lower minimums and a faster start. The trade-off is that a competitor can buy the same formula next month. Custom formulation means the manufacturer produces a formula developed for you, which takes longer, usually requires a larger first order and gives you something no one else sells.
A first-time founder testing demand will usually start white label and move to custom once reorders prove the product. A founder whose whole pitch is a unique formula has to go custom from day one. Fastlane’s roundup of white label supplement companies for new brands is a starting point for building a shortlist.
Whichever route you take, ask every manufacturer the same questions before you sign:
Hiring a contract manufacturer doesn’t move your legal responsibility onto them. The FDA expects the company whose name is on the bottle to make sure the finished product meets its specifications and isn’t adulterated, so keep copies of the batch records and test results for everything you sell. The third-party GMP certificate from question one matters twice: it is also one of the documents Amazon now asks for, covered below.
Every finished lot should be tested for identity, strength and contaminants, and the results should be posted where buyers can find them. Batch testing protects you as much as your customers. At a minimum, each lot should be checked for identity and strength (is the ingredient there, in the amount on the label) and for heavy metals, plus microbes for botanicals and powders. Use a lab accredited to ISO/IEC 17025 and keep the certificate of analysis, or COA, for every lot number you ship.
Then put those reports where buyers can find them. A certificates page, or a link to the right COA from each product page, answers “how do I know this is real?” before it reaches your support inbox. Post the key details as text as well as images: product, lot number, test date and the main results. Search engines and AI assistants read text on a page far more reliably than they read a scanned lab report.
This is where the C60 Power example earns its place. The brand states on its site that every product is third-party tested and that customers can access the tests for what they bought. That promise only builds trust if a buyer can match the lot number on their bottle to a report in a couple of clicks, so if you make the same promise, build the lookup before launch, not after the first customer asks.
Lot tracking does not stop at the lab. Once you outsource fulfillment, your warehouse needs to track lot numbers and expiration dates too, which is why Fastlane’s list of FDA registered 3PLs for supplement and beauty brands screens for exactly that.
A supplement label has five required parts plus a contact for adverse events, and most new-brand trouble comes from the claims printed next to them rather than the panel itself. The required parts are an identity statement that uses the term “dietary supplement” or names the ingredient, as in “vitamin D supplement”, the net quantity, a Supplement Facts panel, an ingredient list, and the name and place of business of the manufacturer, packer or distributor. The label also needs a US address or phone number where customers can report serious side effects, because supplement companies have to forward serious adverse event reports to the FDA.
Claims are where new brands most often get into trouble:
Advertising adds a second regulator. The FTC applies the same standard to your website, emails, social posts and paid influencer content: health claims need competent and reliable scientific evidence, which for most benefit claims means well-designed trials in people. Animal studies, lab studies, customer surveys and testimonials don’t meet that bar on their own, and a disclaimer won’t rescue a claim that’s misleading. If you pay a creator who then says your product cures something, the FTC can hold you responsible for it. The FTC’s Health Products Compliance Guidance walks through dozens of examples and is worth reading before you write a single product page.
Two more items for the pre-launch list: check whether products shipped to California need a Proposition 65 warning, since trace lead in minerals and botanicals is a common trigger, and get product liability insurance before your first wholesale conversation, because retail buyers routinely ask for proof of it.
Sell on your own store if you want to own the customer relationship, on Amazon if you need shoppers who are already searching, and on both once your compliance paperwork is ready for Amazon’s review. Your own store is where you keep the customer relationship. You own the email list, you control how the product is explained, you can publish COAs and education next to the buy button, and you can run subscriptions on your own terms. The downside is that every visitor has to be earned, and ad platforms have their own health-product policies, so some ingredients and claims get ads rejected even when they’re legal on your label. Payment processing is the other surprise: Fastlane’s piece on why supplement brands lose their Shopify Payments accounts explains why it pays to line up a backup processor early.
Amazon brings shoppers who are already searching, but it now acts as a gatekeeper for the category. In its US store, supplement sellers have to get their compliance documents, which can include lab results and the manufacturer’s third-party GMP certificate, verified by one of Amazon’s approved testing, inspection and certification companies, and Amazon won’t accept those documents directly from the seller. The requirement started with higher-risk categories in 2024 and, as NutraIngredients reported in December 2025, Amazon has since expanded the GMP verification requirement to every supplement it sells. Your listing also has to match the information on your label. Build that verification into your launch timeline, because a listing can sit unsellable while the paperwork is reviewed.
Plenty of brands run both: Amazon for discovery and the store for repeat buyers and subscribers. If you do, keep product names, serving information and claims identical across every channel. Shoppers compare, and so do AI assistants pulling facts from several sources at once.
Price a supplement per serving and check that the margin survives your subscriber discount, because the business works when customers reorder, not on the first sale. Supplements get used up on a schedule, so price per serving rather than per bottle. Time reorder emails to when a bottle actually runs out. A 30-serving bottle taken daily lasts about a month, so a reminder around day 22 lands while the customer still has a few doses left. Fastlane’s guide to replenishment and subscription models covers how brands structure that recurring revenue.
Subscriptions come with rules of their own. State automatic-renewal laws generally require clear terms before checkout, the customer’s consent to recurring charges and an easy way to cancel. California’s rules are among the strictest and apply to customers there wherever your company is based. Its 2024 amendments (AB 2863), in force since July 1, 2025, add a separate consent to the renewal itself and a click to cancel option online, so build to them from the start.
Reviews need the same care as ad copy. If a review on your product page says your supplement cured someone’s condition, it reads as a claim you’re making, so moderate reviews that name diseases. Reviews from employees, friends or anyone you’ve paid or given free product to need that connection disclosed, and the FTC’s 2024 rule on fake reviews and testimonials lets it seek civil penalties when insider reviews go undisclosed.
The safest launch order runs from the slowest, hardest-to-reverse decisions to the fastest ones: ingredient and manufacturer first, then testing and label, then channels and pricing. The deadlines above set the sequence. A new dietary ingredient notification has to be filed at least 75 days before you sell, so if your ingredient might need one, that question comes before you approve packaging. Manufacturer minimums and lead times decide your first cash outlay, so they come next. Testing and the label follow, because the label has to match what the COA shows.
Channel paperwork comes after that. If Amazon is part of the plan, start its verification once you have a GMP certificate and lab results in hand, rather than after the listing is built. The structure/function notification runs the other way: it is due within 30 days after you first market the claim, so put a reminder on the calendar for launch week.
How this changes by stage: a founder with a small first run should keep the launch to one channel, usually their own store, and add Amazon once reorders justify the verification work. An operator adding supplements to an established Shopify store already has the traffic, so the risk shifts to claims, because existing product copy and reviews now sit next to a regulated product.
The cost of starting a supplement company depends mostly on your format and the manufacturer’s minimum order quantity. A white label product with low minimums costs far less upfront than a custom formula, which adds development work and a larger first run. Budget separately for batch testing, label and regulatory review, product liability insurance, your store and your first few months of marketing. If you plan to sell on Amazon, add the cost of its third-party verification. Get written quotes from at least three manufacturers before you commit, and compare them on minimums and lead times as well as price per unit.
There’s no federal license to sell dietary supplements in the US. You’ll still need the usual business registration, a sales tax permit where your state requires one, and anything your state or city asks of food sellers. Facilities that make or pack supplements must register with the FDA as food facilities, and depending on your setup, a warehouse holding your inventory may need to as well. Marketplaces add their own requirements on top: Amazon, for example, requires verified GMP documentation before supplements stay listed. Check your state’s rules before your first sale, because they vary.
No, dietary supplements do not need FDA approval before they’re sold. The company is responsible for making sure its products are safe and its labels are truthful, and the FDA can act against a product once it’s on the market. Two notifications still apply: structure/function claims have to be notified to the FDA within 30 days of first marketing them, and an ingredient not sold as a supplement in the US before October 15, 1994 may need a new dietary ingredient notification at least 75 days before sale. Never describe a supplement as FDA approved.
No single rule says “test every batch,” but testing every batch is the simplest way to meet both FDA and Amazon expectations. The GMP rules require you to set specifications for each finished batch and confirm they’re met, and Amazon won’t keep your product listed until one of its approved verification companies has confirmed compliance, which can include reviewing lab results. Testing every lot at an ISO/IEC 17025 accredited lab and keeping the certificate of analysis on file covers both, and it gives you something concrete to show customers who ask how they know the product is what the label says.
Reselling supplements is generally legal, as long as the products are unopened, properly labeled and within their dates. Repackaging or relabeling changes that, because whoever packages and labels a supplement takes on manufacturing and labeling obligations, including GMP compliance and correct claims. Marketplaces like Amazon add their own requirements on top, including verification of the manufacturer’s GMP documentation and listings that match the label. If you plan to buy in bulk and pack under your own name, treat yourself as a manufacturer and follow the steps in this guide.
