Help
Welcome to the Mainstay help page. Here you will find answers to the questions we hear most, and how to reach a real person on our team. If you do not find your answer here, just write to us — a member of the team replies within 2 business days.
Frequently asked questions
1. Where is my order?
Orders ship within 1 to 2 business days of being placed, and usually arrive 4 to 7 business days after that. These are estimates. Shipping is free on every order. If you would like tracking, just email us and we will send it.
2. Do you ship to my address, and how much is shipping?
Shipping is free on every order. We ship to addresses in the United States only, including APO, FPO and DPO military addresses. Orders to Alaska, Hawaii and military addresses may take longer to arrive. We do not ship outside the United States at this time.
3. What if my order arrives damaged, wrong, or not at all?
We are sorry — that should not happen. Email care@mainstaynaturals.com with your order number, and a photo of any damage, within 30 days. Nothing has to be sent back. The team will reship it free of charge or refund you in full.
4. How does the 180-day guarantee work?
You have 180 days from the day your order is delivered. If Vivacelle is not right for you, write to us at care@mainstaynaturals.com with your order number. We will send you a return number and our return address; send the bottles back — opened, partly used, or empty all count — and we will refund what you paid for them. You pay the return postage. You do not need to tell us why.
5. How do I start a return?
Email care@mainstaynaturals.com with your order number. The team will reply with a return number and the address to send the bottles to. Write the return number on the package. The refund goes back to the card you paid with, within 5 business days of your return arriving. Your bank may take a few more days to show it.
6. Is this a subscription?
No. One time purchase, no subscription, no hidden fees. Nothing else ships unless you ask for it.
7. What is the Vivacelle Club?
The Club is optional, and you can only join it after you buy. If you join, you can cancel it any time, online (as our Terms of Service, Section 4, explain) or by emailing us. Each Club shipment is covered by the same 180-day guarantee.
8. How do I cancel an order?
If your order has not shipped yet, email us with your order number and we can cancel it for a full refund. Once an order has shipped, it cannot be cancelled in transit. Once it arrives, the 180-day guarantee applies.
9. How do I take Vivacelle?
Two capsules with breakfast, every day. Each bottle is 60 capsules — a 30-day supply.
10. What is in it?
Vivacelle is a daily healthy-aging formula built around NAD+, plus quercetin and Japanese knotweed extract standardized to resveratrol.
11. Can I take it with my medications?
Vivacelle is a dietary supplement, not a medication. If you take other medicines, show the label to your pharmacist before you start. If you are pregnant, nursing, or being treated for a health condition, please talk to your doctor or pharmacist first.
12. How quickly will you reply?
Within 2 business days, by email.
How to reach the team
Email: care@mainstaynaturals.com — this is the main way to reach us. For anything about an order or a refund, please include your order number so we can find it quickly.
Phone: 1-844-MY-MAINSTAY (1-844-696-2467) — there if you would rather call.
A real person reads every message, and every reply is checked by a member of the team before it is sent.
Send us a message
Messages sent here reach the same team and the same support system as email, and the reply goes to the email address you type in. For questions about a specific order or a refund, please email care@mainstaynaturals.com with your order number instead — the form cannot look up orders.