The best 75-character supplement title on Amazon leads with your brand, names the product and its form, includes the one hero ingredient and strength a buyer is searching for, and stops there. Everything else, the secondary ingredients, certifications, and use cases, moves into the new Item Highlights field. The formula that works inside the cap is Brand + Product Type/Form + Hero Ingredient + Strength + Count or Format, written in plain language, matched exactly to your Supplement Facts Panel, with zero promotional or disease-claim language. That structure satisfies Amazon’s keyword algorithm, the AI shopping assistant, and the human scrolling on a phone at the same time.
This guide breaks down that anatomy slot by slot, explains the July 2026 rule change driving it, and shows how Amazon’s algorithm now reads a title, so you can build one that ranks, gets recommended, and stays compliant.
Table of contents
- The short answer: the 75-character formula
- What changed on July 27, 2026
- Why your title now has three different readers
- How Amazon’s algorithm changed and what it rewards
- The anatomy, slot by slot
- Brand first, trademark name, or keyword first?
- Should you list ingredients or accolades?
- What you can never put in a supplement title
- Item Highlights: where the overflow goes
- Winning in the search results page
- Should you A/B test your title?
- How to build or fix your title before the AI does
- FAQ and glossary
The short answer: the 75-character supplement title formula
Amazon now caps product titles at 75 characters including spaces in every category except media. For a supplement, the highest-performing way to spend those characters is:
Brand + Product Type/Form + Hero Ingredient + Strength + Count/Format
A worked example, at 71 characters:
NordVida Magnesium Glycinate 500mg, Sleep Support, 120 Capsules
That title names the brand, the form (glycinate, which is also the search term), the strength (matched to the panel), one clear use, and the count. It reads cleanly on a phone, contains the keywords a buyer actually types, and makes no claim Amazon would flag. The flavors, the “third-party tested,” the “vegan, non-GMO,” and the secondary benefits go into Item Highlights, the new 125-character searchable field that sits beside the title.
Keep reading for why each slot is ordered the way it is and what the algorithm does with it.
What changed on July 27, 2026
On June 10, 2026, Amazon posted an announcement in Seller Central titled “Updates to improve your product titles begin on July 27,” and the thread drew immediate, heavy seller discussion (see the Seller Central announcement and Q&A). The core facts:
| Change | Detail |
|---|---|
| New title cap | 75 characters including spaces, all categories except media (books, music, video) |
| New field | Item Highlights, 125 characters, searchable, shown beside the title in search and on the product page |
| Enforcement | Titles over 75 characters after July 27 are gradually rewritten by Amazon’s AI |
| Review window | Brand Registry owners get 14 days to review, edit, or approve AI changes via the Review Listings Changes tool |
| Brand name | Counts toward the 75 characters and sits at the front |
| Variations | Both parent and child titles must fit 75 characters |
| Bundles | Not exempt, despite older bundle-policy language allowing 200 characters |
The math is worth internalizing: 75 (title) + 125 (Item Highlights) = 200, the same indexable real estate sellers had under the previous limit, now split into two fields with two jobs. Amazon’s stated reason is mobile display and consistency with other major retailers; most shoppers are on phones, where only the first 70 to 80 characters of a title ever showed anyway.
This sits on top of the January 2025 title policy that established the 200-character cap, banned most decorative special characters, and limited word repetition. Search Engine Land’s breakdown of that 2025 update is a useful reference, because those rules still apply, now inside a much smaller box.
The single most important implication: if you do nothing, Amazon’s AI writes your title for you. And because Amazon evaluates the listing it sees, not who typed it, a claim or classification problem the AI introduces is still your liability. In a regulated category like supplements, that is a real risk, which is the strongest argument for engineering the 75-character title yourself.
Why your title now has three different readers
A supplement title in 2026 is read by three distinct audiences, and it has to perform for all of them from one string of text:
- The A9/A10 search algorithm, which matches the keywords in your title to what a shopper typed and ranks the result.
- Amazon’s AI shopping assistant (now called Alexa for Shopping, previously Rufus), which reads your listing to decide whether to recommend you in a conversational answer.
- The human, scanning a phone screen, deciding in a second whether to tap.
The title is also the ad copy for most Amazon ad types, so it works in Sponsored Products and Sponsored Brands placements too. One field, four jobs. That is why the 75-character constraint is less a limitation than a forcing function: it makes you choose the words that do the most work for every reader at once.
How Amazon’s algorithm changed and what it rewards
To structure a title well, you have to understand what is reading it. Amazon now runs two layers over the same listing.
Layer 1: A9/A10, still the engine for most sales
The classic search algorithm (A9, evolved into A10) matches keywords in the shopper’s query against the title, bullets, description, and backend search terms, then ranks results on relevance plus performance signals: conversion rate, sales velocity, click-through rate, and reviews. This still drives the majority of purchases. Keywords in the title still matter. What changed is that the title now holds far fewer of them, so the keywords you keep must be the ones with the highest search volume and clearest intent, and the rest move to Item Highlights and backend terms.
Layer 2: COSMO and Alexa for Shopping, the intent layer
Underneath the AI assistant sits COSMO, Amazon’s commonsense reasoning system. COSMO infers what a shopper means rather than just matching words. Ask “what’s a good magnesium for sleep that won’t upset my stomach,” and COSMO reasons toward glycinate, gentle-on-digestion, sleep-support, then the assistant surfaces products whose listings clearly express those attributes. If your listing is not readable to COSMO, the assistant will not recommend it, no matter how many keywords you stuffed.
The assistant itself, Rufus, was renamed Alexa for Shopping in the US on May 13, 2026 (CNBC’s report on the launch). The name changed; the engine reading your title, bullets, A+ content, attributes, reviews, and Q&A did not. This matters because of scale: Amazon has said the assistant drove roughly $12 billion in incremental sales in 2025 and that shoppers using it convert at meaningfully higher rates than those using plain keyword search. A growing share of high-intent shopping now flows through a system that reads your title as a source document, not a keyword bin.
What both layers now reward
The two layers point in the same direction, which simplifies your job:
- Specificity over hype. “Magnesium Glycinate 500mg” beats “Premium High-Quality Magnesium Complex.” The AI treats vague superlatives as noise and may deprioritize a keyword-stuffed title.
- Noun-phrase clarity. A title that reads like a clear product identity (“what it is, which form, what strength, for whom”) is parseable by both the algorithm and the assistant.
- Attribute completeness across the listing. Form, strength, count, certifications, and use case, expressed accurately, give the AI the anchors it needs. Much of this now lives in Item Highlights and structured attributes, which is exactly why that field matters.
- Consistency with reviews and the panel. The AI cross-references your claims against reviews and your stated facts. A title that overstates what the product is gets undercut by its own reviews.
The practical takeaway: the 75-character era and the AI era reward the same thing. Clear, true, specific titles win twice.
The anatomy, slot by slot
Here is how to spend 75 characters on a supplement, in priority order.
| Slot | Content | Rough budget | Why it’s here |
|---|---|---|---|
| 1 | Brand | 8–15 chars | Required at front; builds recognition and branded search |
| 2 | Product type / form | 12–20 chars | The category noun and the form that doubles as a keyword |
| 3 | Hero ingredient + strength | 12–18 chars | The highest-intent search term; must match the panel |
| 4 | Primary use or audience | 10–18 chars | The intent signal COSMO and shoppers look for |
| 5 | Count / format | 8–12 chars | Helps comparison and answers “how much do I get” |
Slot 1: Brand
Lead with the brand. Amazon’s policy puts the brand at the front, and it counts toward your 75 characters. For a registered brand this also feeds branded search and recognition over time. Do not use the ® or ™ symbol; those are prohibited in customer-facing title text and can cause suppression.
Slot 2: Product type and form
State plainly what the product is, and choose a form word that is also a search term. For magnesium, “Glycinate” is both the form and a high-intent keyword. For protein, “Whey Isolate” does the same work. This slot is where keyword and clarity overlap perfectly.
Slot 3: Hero ingredient and strength
Name the one ingredient a buyer is searching for and its strength. The strength must match your Supplement Facts Panel exactly. Do not inflate it with raw-material-equivalent math (for example, putting a pre-extraction “equivalent” weight in the title when the panel shows a smaller actual amount). That mismatch is one of the most common triggers for a supplement listing being flagged.
Slot 4: Primary use or audience
One use case or audience signal: “Sleep Support,” “for Joint Health,” “for Women.” This is the intent anchor COSMO and the AI assistant use, and it is what a shopper scans for. Keep it to a compliant structure/function phrase, never a disease claim.
Slot 5: Count or format
Close with the count or format (“120 Capsules,” “60 Servings,” “Gummies”). It helps shoppers compare value and answers a basic question the AI gets asked constantly.
Before and after
A typical pre-2026 supplement title ran 180 to 200 characters and looked like a keyword dump. Here is the transformation:
Before (197 chars): NordVida Magnesium Glycinate 500mg Supplement High Absorption Premium Quality Sleep Aid Stress Relief Muscle Relaxation Calm Support Non-GMO Vegan Gluten Free Third Party Tested 120 Veggie Capsules
After, title (71 chars): NordVida Magnesium Glycinate 500mg, Sleep Support, 120 Capsules
After, Item Highlights (118 chars): High-absorption chelated magnesium. Non-GMO, vegan, gluten-free. Third-party tested. Supports muscle relaxation and calm.
Nothing valuable disappeared. The hero terms stayed in the title; the supporting terms moved to a searchable field where they still index and still help shoppers compare.
Brand first, trademark name, or keyword first?
In the 200-character era, many private-label sellers led with keywords and buried the brand, because long titles let them do both. That approach is now obsolete for two reasons: Amazon places the brand at the front, and you no longer have the room to lead with a keyword phrase and still fit the brand. Lead with the brand, then immediately follow with the product type and form, which carries your primary keyword anyway.
If your trademarked product name (a sub-brand or line name) is short and recognizable, it can sit right after the brand, but only if it earns its characters. A product-line name that a buyer is not searching for is a poor use of a 75-character budget; the form and hero ingredient almost always deserve those characters more. Reserve the trademark name for cases where it has real recognition value, and let Item Highlights and the rest of the listing carry the brand story.
Should you list ingredients or accolades?
This is where supplement titles go wrong most often.
Ingredients: include the one hero ingredient and its strength in the title. Do not list the full stack. A 12-ingredient greens blend cannot fit its ingredient list in 75 characters, and trying makes the title unreadable to humans and algorithms alike. Name the headline (“Super Greens” plus the one standout, say “with Spirulina”), then list the full blend in Item Highlights, the bullets, and the structured attributes where the AI reads it anyway. Always match anything you state to the panel.
Accolades: distinguish factual attributes from promotional claims.
- Allowed (factual attributes): “Third-Party Tested,” “Non-GMO,” “Vegan,” “Gluten-Free,” “USDA Organic.” These are verifiable product attributes. They are useful, but in a 75-character title they usually lose the priority contest to the hero ingredient and use case, so most belong in Item Highlights and attributes.
- Banned (promotional or subjective): “Best Seller,” “#1 Rated,” “Award-Winning,” “Doctor Recommended” (without substantiation and approval), “100% Guaranteed,” “Premium,” “Amazing.” Amazon prohibits subjective and promotional language in titles, and these can get a listing suppressed regardless of category.
- Never: the ® or ™ symbol, competitor brand names, “FSA/HSA eligible,” prices, or external references.
The rule of thumb: if a word describes the product, it can earn a place; if it praises the product, it does not belong in the title.
What you can never put in a supplement title
Supplements are one of Amazon’s highest-compliance-risk categories, so the title rules stack on top of the general ones.
| Prohibited element | Example | Why |
|---|---|---|
| Disease claims | ”Cures Anxiety,” “Lowers Blood Pressure,” “Treats Insomnia” | Supplements are not approved drugs; disease claims violate FDA and Amazon rules |
| Promotional language | ”Best Seller,” “#1,” “Guaranteed Results” | Subjective/promotional content is banned in titles |
| Panel mismatch / creative math | ”5000mg” in the title when the panel shows 500mg | Reads as misleading; a top flagging trigger |
| Prohibited special characters | ! $ ? _ { } ^ ¬ ¦ (unless part of the brand) | Banned since the 2025 policy |
| ® and ™ symbols | ”NordVida®“ | Prohibited in customer-facing title text |
| Competitor brand names | ”Better than [Brand X]“ | Trademark and IP violation |
| Word repetition over twice | ”Sleep … Sleep … Sleep” | Same word allowed at most twice (articles, prepositions, conjunctions exempt) |
| External references | URLs, phone numbers, “FSA/HSA eligible” | Not allowed in listings |
| ALL CAPS | ”MAGNESIUM GLYCINATE” | Use Title Case |
Stick to structure/function language, which describes how an ingredient supports the body’s normal function (“supports restful sleep”), and avoid disease language, which claims to treat or prevent a condition. The FDA’s structure/function claims guidance defines the line, and Amazon’s dietary supplements policy is the platform-side authority.
One note on the FDA disclaimer (“This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease”): it belongs on the label and in the listing where claims appear, not crammed into the 75-character title. The title’s job is to stay claim-light so the disclaimer is not even necessary there.
Tools such as Verid8 can scan a title and full listing against Amazon supplement policy to catch a flaggable phrase before Amazon’s AI does, which is worth doing on every new or rewritten title.
Item Highlights: where the overflow goes
Item Highlights is the new 125-character field introduced alongside the title cap. What to know:
- It is searchable and displays beside the title in search results and on the product detail page, so content here still contributes to discoverability.
- It is the right home for secondary keywords, the full ingredient stack, certifications, format details, and use cases that no longer fit the title.
- It is a compliance surface, not a keyword dump. The same disease-claim and promotional rules apply, and because Amazon’s AI can rewrite or populate it, you should review it as carefully as the title.
Treat the title and Item Highlights as one designed system: the title carries identity and the top keyword, Item Highlights carries the supporting detail, and together they cover the 200 characters of indexable space you used to spend in one field.
Winning in the search results page
The 75-character cap is essentially Amazon admitting what the data already showed: mobile shoppers read the first 70 to 80 characters and decide. To win the click on the search results page:
- Front-load meaning. Brand, form, and hero ingredient should land in the first 50 characters so they survive any truncation.
- Make it scannable. A clean noun phrase reads faster than a comma-separated keyword pile, and faster reading means higher click-through, which feeds your A9/A10 ranking.
- Match the title to the click intent. If you rank for “magnesium for sleep,” the title should make sleep support obvious, or the expensive click bounces.
- Remember the title is your ad. It is the headline in Sponsored Products and Sponsored Brands too, so clarity directly affects ad performance and ACoS.
Should you A/B test your title?
Yes, and the 75-character cap makes testing more valuable, not less, because every character now carries more weight. If you are enrolled in Brand Registry, use Amazon’s native Manage Your Experiments tool to split-test titles on eligible ASINs. With limited room, the highest-leverage tests are:
- Brand-led vs brand-plus-form-led opening, to see which drives more clicks.
- Which differentiator earns the use-case slot (for example, “Sleep Support” vs “for Stress and Sleep”).
- Hero ingredient phrasing (“Magnesium Glycinate” vs “Chelated Magnesium”).
Run each test long enough to reach significance, commonly two to three weeks or more depending on traffic, and change one variable at a time so you know what moved the result. One firm rule: never test aggressive or non-compliant copy on the live listing to chase clicks. A title that wins on click-through but trips a compliance flag is a loss. Test compliant variations only.
How to build or fix your supplement title before the AI does
- Pull every title over 75 characters. Export your catalog and flag any title longer than 75 characters (a simple length formula in a spreadsheet does it). Prioritize by revenue.
- Confirm the panel. Note the exact hero ingredient and strength from each Supplement Facts Panel so the title matches it.
- Draft to the formula. Brand + Product Type/Form + Hero Ingredient + Strength + Use + Count, trimming to 75 characters including spaces.
- Move the overflow to Item Highlights. Put secondary ingredients, certifications, format, and use cases into the 125-character field.
- Run a compliance pass. Remove any disease claim, promotional word, special character, ®/™, competitor name, or panel mismatch.
- Apply before July 27 (or now). Editing it yourself keeps you in control; waiting hands the title to Amazon’s AI.
- Watch the Review Listings Changes tool. If a title was auto-rewritten, brand owners have a 14-day window to correct it.
- Test the winners. Once compliant, A/B test your highest-revenue titles to find the best-performing structure.
FAQ
What is Amazon’s product title character limit for supplements in 2026? 75 characters including spaces, the same cap that applies to all categories except media, effective July 27, 2026. A separate 125-character Item Highlights field holds additional searchable detail.
Should a supplement title start with the brand or a keyword? Start with the brand. Amazon places the brand at the front and it counts toward the 75 characters. Follow it immediately with the product type and form, which carries your primary keyword.
Can I put my full ingredient list in the title? No. There is no room, and it reads as spam to both the algorithm and the AI assistant. Name one hero ingredient and its strength in the title, and list the full stack in Item Highlights, bullets, and attributes.
Are certifications like “third-party tested” allowed in the title? Yes, they are factual attributes and allowed, but they usually lose the priority contest for 75 characters to the hero ingredient and use case. Most belong in Item Highlights and structured attributes.
What happens if my title is over 75 characters after July 27, 2026? Amazon’s AI gradually rewrites it. Your listing stays active, and Brand Registry owners get a 14-day window to review and correct the change. Because you own whatever the listing says, an AI rewrite that introduces a non-compliant phrase is still your problem.
Does the title still matter now that AI shopping assistants exist? More than ever. The title is read by the A9/A10 keyword algorithm, by the COSMO/Alexa for Shopping AI layer, and by the human, and it serves as ad copy. It is the single most important piece of structured text on the page.
Can I use “best” or “#1” if it’s true? No. Subjective and promotional language is prohibited in titles regardless of accuracy, and it can get a listing suppressed. Use factual descriptors instead.
Should I A/B test my supplement title? Yes, using Amazon’s Manage Your Experiments tool if you are in Brand Registry. With only 75 characters, the differentiator and opening structure are the highest-leverage tests. Test only compliant variations.
Glossary
- A9/A10: Amazon’s keyword search and ranking algorithm. Matches query terms to listing text, then ranks on relevance and performance.
- COSMO: Amazon’s commonsense reasoning layer that infers shopper intent rather than matching keywords literally.
- Rufus / Alexa for Shopping: Amazon’s AI shopping assistant. Renamed from Rufus to Alexa for Shopping in the US on May 13, 2026; the underlying engine is unchanged.
- Item Highlights: The 125-character searchable field introduced alongside the 75-character title cap, shown beside the title.
- Structure/function claim: A statement that a nutrient supports the body’s normal structure or function. Generally permitted with the FDA disclaimer.
- Disease claim: A statement that a product treats, cures, prevents, or diagnoses a disease. Prohibited for supplements.
- Supplement Facts Panel: The regulated label statement of ingredients and amounts, governed by 21 CFR 101.36. Your title must match it.
Free resource: Grab our supplement listing optimization checklist, including a 75-character title and Item Highlights template, to rebuild your catalog before Amazon’s AI does it for you. [Link]
Written by the team at Fussy Penguins, the Amazon team built exclusively for supplement brands. We work with supplement founders on PPC, listing optimization, compliance, and growth. [Learn more about our work →]
Keep reading: How to fix a supplement title that doesn’t match your Supplement Facts Panel · How to optimize a supplement listing for Rufus and Alexa for Shopping · Which cGMP certifications Amazon accepts
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