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Free U.S. shipping on every order · Free 30-day returns · Real help by email





Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico, U.S. territories and APO/FPO/DPO addresses can take longer. You get a tracking number by email as soon as your order ships.
Free returns within 30 days of delivery: we email you a prepaid return label, no reason needed. Items must be unopened, with the manufacturer or tamper-evident seal intact, in their original packaging. Opened, used or partially consumed vitamins, minerals and supplements, items with broken or missing seals, and gift cards can't be returned. Damaged, defective, incorrect or expired items are always covered. Refunds go back to your original payment method within 10 business days of approval.
If you have a question about an item, its label or your order, email sales@naturalvitaminsonline.com with the product name or order number. We answer every message by email and reply within 1 business day (Monday to Friday, Eastern Time).
Talk to your doctor or pharmacist before starting a supplement, especially if you're pregnant or nursing, take medication, or have a medical condition.
†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.
Talk to your doctor or pharmacist before starting a supplement, especially if you're pregnant or nursing, take medication, or have a medical condition.
Superior Source Vitamin B-1 is a thiamin supplement designed to support your body’s natural processes, with 100 mg per tablet and a sublingual format.
For shoppers seeking a Vitamin B-1 supplement in a tablet that dissolves in the mouth, this formula offers a straightforward sublingual option. Its stated purpose is to support the body’s natural processes.
Superior Source Vitamin B-1 is designed to provide thiamin for support of your body’s natural processes. The formula is made to dissolve on or under the tongue.
Place a tablet on or under your tongue and let it dissolve. The tablet’s sublingual format is intended for use in the mouth rather than as a conventional swallowed tablet.
Each tablet contains 100 mg of thiamin, and the product includes 100 sublingual tablets.
Superior Source Vitamin B-1 suits shoppers looking for a defined-dose thiamin supplement in a dissolving sublingual tablet format. It is made for use on or under the tongue and contains 100 mg of thiamin per tablet.
(Vitamin B1) Thiamine Mononitrate, Lactose, Stevia, Natural Cherry Flavor and Gum Acacia
Q: How do you take Superior Source Vitamin B-1?
A: Superior Source Vitamin B-1 is a sublingual tablet designed to dissolve on or under the tongue.
Q: How much thiamin is in each Superior Source Vitamin B-1 tablet?
A: Each Superior Source Vitamin B-1 sublingual tablet contains 100 mg of thiamin.
Free standard shipping on every order to U.S. addresses, with no minimum. Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico, U.S. territories and APO/FPO/DPO addresses can take longer. You get a tracking number by email as soon as your order ships. See shipping details.
Free returns within 30 days of delivery. Free returns within 30 days of delivery: we email you a prepaid return label, no reason needed. Items must be unopened, with the manufacturer or tamper-evident seal intact, in their original packaging. Opened, used or partially consumed vitamins, minerals and supplements, items with broken or missing seals, and gift cards can't be returned. Damaged, defective, incorrect or expired items are always covered. Refunds go back to your original payment method within 10 business days of approval. See returns & refunds.
Damaged, defective, incorrect or expired item? Email your order number, a photo and the lot/expiration details to sales@naturalvitaminsonline.com and we will arrange a replacement or refund; this is always covered. Please report visible shipping damage within 7 days of delivery.
Sign up for our emails and get 10% off your order with code WELCOME10 (one use per customer). We send marketing emails only to people who sign up, and every email includes a one-click unsubscribe link.
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