Terms of Service
Effective date: August 1, 2026 Last updated: August 1, 2026
1. Who we are
Mattiva is operated by NPK Industries, LLC d.b.a. mattiva, Mattiva Health, an Arizona limited liability company, at 9424 E Corrine Dr Scottsdale, Arizona 85260.
You can reach a person at hello@mattivahealth.com.
In these Terms, "Mattiva," "we," "us," and "our" mean NPK Industries, LLC d.b.a. mattiva, Mattiva Health. "You" means the person using the site or placing an order. "Site" means mattivahealth.com and any related pages we operate.
2. Your agreement to these Terms
By using the Site, creating an account, or placing an order, you agree to these Terms and to our Privacy Policy, which is incorporated by reference. If you don't agree, don't use the Site.
Section 18 contains a binding arbitration agreement and a waiver of your right to participate in a class action. It affects how disputes between you and Mattiva are resolved. You may opt out of arbitration within 30 days of your first order — Section 18.7 tells you how.
3. Eligibility — 18 and over
The Site and our products are for adults. By using the Site or ordering, you represent that you are at least 18 years old and can enter into a binding contract. We do not knowingly sell to minors and we do not knowingly collect personal information from anyone under 18.
If you are buying on behalf of a business, you represent that you are authorized to bind it to these Terms.
4. Your account
You may check out as a guest or create an account. If you create one, keep your password to yourself, keep your details current, and tell us promptly at hello@mattivahealth.com if you think someone else has access. You are responsible for activity under your account unless it results from our failure to maintain reasonable security.
We may suspend or close an account that we reasonably believe is being used for fraud, resale in violation of Section 13, or abuse of our return policy.
5. Products, descriptions, and pricing
We try to describe our products accurately, including ingredients, servings, and use directions. We do not warrant that every description, image, or other content is error-free, complete, or current. Label information on the product you receive controls if it differs from the Site.
Prices are in US dollars and exclude tax and shipping, which are calculated at checkout before you pay. We may change prices at any time; the price that applies to your order is the one displayed when you place it.
Colors and packaging may vary slightly from images. Product photography is representative.
If we list a product at an obviously incorrect price — for example, a decimal-point error — we may cancel the order and refund you in full rather than honor it. We will tell you if we do.
6. Orders
Your order is an offer to buy. We accept it when we send you a shipping confirmation, not when you receive an order confirmation email or when your card is authorized.
We may refuse or cancel any order, in whole or in part, including where:
- the product is out of stock or discontinued;
- there is an error in the price or description;
- we suspect fraud, or the order fails our payment processor's verification;
- the quantity suggests resale (see Section 13); or
- we are unable to ship to your address.
If we cancel an order you have already paid for, we refund it in full.
7. Payment
You authorize us and our payment processor to charge your selected payment method for the total shown at checkout, including tax and shipping. You represent that you are authorized to use that payment method.
Charges appear on your statement as MATTIVA HEALTH.
If a charge is declined, reversed, or charged back, we may suspend or cancel the order and pause your account until the balance is resolved. Please email us before disputing a charge — Section 9 explains why that is usually faster.
8. Subscriptions and automatic renewal
Some products are available on a recurring plan at a discount. This section describes an automatic renewal that continues until you cancel. Read it before you subscribe.
8.1 What you are agreeing to. When you place a subscription order, you separately consent to (a) the purchase and (b) the automatic renewal. Before you confirm, checkout will show you: that the plan renews automatically until you cancel, how often it renews, the amount of each renewal charge, and how to cancel. We keep a record of that consent.
8.2 Billing. We charge your payment method for the first order when you place it, and then at the start of each renewal period at the then-current subscription price, plus applicable tax and shipping. Your renewal cadence is the one you chose at checkout — typically every 30 or 90 days.
8.3 Price changes. If we change your subscription price, we will email you at least 30 days before the change takes effect, with the new price and the date, and you may cancel before then. Continuing after the notice period means you accept the new price.
8.4 Cancelling. You may cancel at any time, effective for the next renewal:
- from Account → Subscriptions on the Site, in the same number of steps it took to subscribe; or
- by emailing hello@mattivahealth.com with your order number.
We may offer you a discount, a pause, or a longer interval when you cancel. You are free to decline, and if you say you want to cancel, we cancel. No phone call is required at any point.
8.5 Skipping and pausing. You can skip a shipment or change your interval from your account without cancelling.
8.6 Charges already processed. Cancellation stops future charges. It does not automatically refund a renewal we have already charged, but an order that has already shipped is still covered by the 30-day return policy in Section 9.
8.7 Reminders. Where required by law, and as a matter of practice, we email you before a renewal charge with the amount, the date, and a cancellation link.
8.8 Failed payments. If a renewal charge fails, we may retry it for up to 14 days and email you. If it still fails, we cancel the subscription.
9. Shipping, returns, and refunds
Shipping terms are on our Shipping page and are part of these Terms. Title and risk of loss pass to you on delivery to the carrier; if a package is lost or damaged in transit, contact us and we will make it right under the policy below.
Returns: 30 days, any reason, opened or not. Email hello@mattivahealth.com with your order number within 30 days of delivery and we will send a return address. Refunds go to the original payment method within 5 business days of the return arriving or of our confirming it by email, whichever is first; your bank may take a further 3–5 business days to post it.
Original shipping is refunded on defective or incorrect items. Return shipping is on us where we made the error and on you otherwise. Full detail is on the Refunds & Returns page, which is also part of these Terms. Where these Terms and that page conflict, that page controls for returns.
We may limit or refuse returns from an account showing a pattern of abuse.
10. Dietary supplements — important
Our products are dietary supplements, not drugs.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
Nothing on the Site — including product pages, emails, the Vacay email series, blog content, or customer reviews — is medical advice, and none of it is a substitute for talking to a qualified healthcare provider. Do not use the Site to diagnose or treat a health problem.
Talk to your doctor before using any product if you are pregnant or nursing, under 18, taking prescription medication (including blood thinners, sedatives, or anything affecting sleep or blood pressure), have a diagnosed medical condition, or are scheduled for surgery. Stop use and seek medical attention if you have an adverse reaction.
Our products contain no THC, CBD, or hemp-derived cannabinoids. We make no representation about how any product will interact with cannabis or with the result of a drug test.
Individual results vary. Nothing in our marketing is a promise of a particular outcome.
11. Reviews and anything else you post
If you post a review, photo, comment, or other content, you keep ownership of it and grant us a non-exclusive, worldwide, royalty-free, transferable, sublicensable licence to use, reproduce, adapt, publish, and display it in connection with Mattiva and our marketing, in any media, for as long as we operate.
You represent that the content is yours to post, is truthful, reflects your honest experience, and does not infringe anyone's rights.
We may decline to publish, or remove, content that is false, abusive, off-topic, promotional, or that makes a health claim we are not permitted to publish — including a claim that a product treated, cured, or prevented a disease. A claim like that cannot appear on our site even if a customer sincerely made it. Removing it is not a comment on your experience.
We do not pay for reviews or condition an incentive on a positive one.
12. Ownership of the Site
The Site, the Mattiva name and logo, product names, copy, photography, and design are owned by us or our licensors and protected by intellectual property law. We grant you a limited, revocable, non-transferable license to view and use the Site for your own non-commercial use. Everything else is reserved.
Do not copy our product copy, images, or design for a competing or look-alike product, and do not use our marks in a way that suggests we endorse you.
13. Acceptable use
Don't:
- buy for resale, or in quantities that suggest resale, without our written agreement;
- scrape, crawl, or harvest the Site, or use it to train a machine-learning model;
- probe, scan, or interfere with the Site's security or availability;
- upload malicious code, or impersonate anyone;
- use the Site for anything unlawful, or in violation of these Terms.
14. Third-party links and services
The Site links to and relies on services we don't control — payment processing, fulfilment, email, analytics, and advertising platforms. We are not responsible for their content or practices. Their terms and privacy policies apply to your dealings with them.
15. Disclaimer of warranties
The Site is provided "as is" and "as available." To the fullest extent permitted by law, we disclaim all warranties, express or implied, including merchantability, fitness for a particular purpose, title, and non-infringement, and any warranty arising from course of dealing or usage of trade.
We do not warrant that the Site will be uninterrupted, secure, or error-free, or that defects will be corrected.
Nothing in this section limits any warranty that cannot be disclaimed under applicable law, or affects your rights in respect of a product that is defective. Some states do not allow the exclusion of implied warranties, so some of the above may not apply to you.
16. Limitation of liability
To the fullest extent permitted by law:
- Neither we nor our officers, employees, suppliers, or fulfilment partners are liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for lost profits, revenue, data, or goodwill, arising out of your use of the Site or any product, even if we were told such damages were possible.
- Our total liability for any claim relating to the Site or a product is limited to the greater of (a) the amount you paid us for the product giving rise to the claim in the 12 months before the claim, or (b) $100.
These limits do not apply to liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or to any other liability that cannot be limited under applicable law. Some states do not allow the exclusion or limitation of incidental or consequential damages, so some of the above may not apply to you.
17. Indemnification
You agree to indemnify and hold harmless [Legal Entity Name] and its officers, members, employees, and agents from any claim, loss, liability, and reasonable legal fees arising out of your breach of these Terms, your misuse of the Site, your content under Section 11, or your violation of law or of a third party's rights.
18. Dispute resolution — arbitration and class-action waiver
Please read this section carefully. It affects your legal rights, including your right to file a lawsuit in court and to participate in a class action.
18.1 Talk to us first. Before starting arbitration, email hello@mattivahealth.com describing the dispute and the relief you want. Most things get resolved here. Give us 60 days. If we can't resolve it, either of us may start arbitration.
18.2 Agreement to arbitrate. You and Mattiva agree that any dispute, claim, or controversy arising out of or relating to these Terms, the Site, or any product — whether based in contract, tort, statute, fraud, or any other theory — will be resolved by binding individual arbitration, and not in court, except as stated in 18.4 and 18.7.
18.3 How arbitration works. Arbitration will be administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules, available at adr.org. The arbitrator's decision is final and binding and may be entered as a judgment in any court of competent jurisdiction. Arbitration will be held in Maricopa County, Arizona, or by telephone or video, or on documents only, at your election where the AAA rules permit. We will pay AAA filing, administration, and arbitrator fees for any claim under $10,000 that is not frivolous.
18.4 What is not covered. Either of us may bring an individual claim in small claims court if it qualifies. Either of us may seek injunctive relief in court to protect intellectual property rights. Nothing here prevents you from reporting a matter to a government agency.
18.5 Class-action waiver. You and Mattiva agree to bring claims only in an individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, or representative proceeding. The arbitrator may not consolidate more than one person's claims or preside over any form of representative proceeding. If this waiver is found unenforceable as to a particular claim or request for relief, that claim or request must proceed in court and is severed from arbitration; the rest of this Section 18 still applies.
18.6 Jury trial waiver. If for any reason a dispute proceeds in court rather than arbitration, you and Mattiva each waive any right to a jury trial.
18.7 Your right to opt out. You may opt out of this arbitration agreement within 30 days of your first order by emailing hello@mattivahealth.com with the subject line "Arbitration Opt-Out" and including your name, the email on your order, and a statement that you are opting out. Opting out does not affect anything else in these Terms, and it will not affect your account, pricing, or service in any way.
18.8 Survival. This section survives termination of these Terms and closure of your account.
19. Governing law and venue
These Terms and any dispute arising from them are governed by the laws of the State of Arizona, without regard to its conflict-of-laws rules, and by applicable US federal law. The Federal Arbitration Act governs Section 18.
For any dispute not subject to arbitration, you and Mattiva consent to the exclusive jurisdiction of the state and federal courts located in Maricopa County, Arizona.
If you are a consumer, this does not deprive you of the protection of any mandatory consumer-protection law of the state where you live.
20. Changes to these Terms
We may update these Terms. When we do, we change the "Last updated" date above and post the new version here. If a change is material — for example, a change to Section 18 — we will give notice by email to account holders and by a notice on the Site at least 30 days before it takes effect, and it will not apply retroactively to a dispute that already exists.
Changes to Section 18 do not apply to a dispute of which we had notice before the change.
Continuing to use the Site after a change takes effect means you accept the updated Terms.
21. Termination
You may stop using the Site at any time and close your account by emailing us. We may suspend or terminate your access if you breach these Terms or if we reasonably believe your use creates risk or legal exposure. Sections 11, 12, and 15 through 22 survive.
22. General
Entire agreement. These Terms, the Privacy Policy, the Shipping policy, and the Refunds & Returns policy are the whole agreement between you and us about the Site, and replace any earlier understanding.
Severability. If any provision is held unenforceable, it is modified to the minimum extent necessary or severed, and the rest stays in force.
No waiver. Not enforcing a provision is not a waiver of it.
Assignment. You may not assign these Terms. We may assign them in connection with a merger, acquisition, or sale of assets, on notice to you.
Force majeure. We are not liable for delay or failure caused by events beyond our reasonable control, including carrier disruption, supplier failure, natural disaster, or government action.
Notices. We may give you notice by email to the address on your account or by posting on the Site. Send notices to us at [Street Address, City, AZ ZIP], attn: Legal, with a copy to hello@mattivahealth.com.
Contact. NPK Industries, LLC d.b.a. mattiva, Mattiva Health, at 9424 E Corrine Dr Scottsdale, Arizona 85260. · hello@mattivahealth.com
