# Comparing online vitamin shopping

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Last updated: 2026-10-27
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Compare online vitamin retailers by formulation, quantity, delivery and purchase conditions.

By ShopBack Discover editorial team (https://discover.shopback.com/authors). Published: 2026-10-09. Last updated: 2026-10-27.

Compare vitamin formulation, serving quantity and delivered cost before choosing a retailer.

## Start on ShopBack

Open the store page on ShopBack before you buy. Each page shows the live Cashback rate and the full terms.

- [iHerb on ShopBack](https://www.shopback.com/iherb)

## Frequently asked questions

### What are good alternatives to Vitacost for buying vitamins online?

iHerb is an option to compare for vitamins and supplements. Compare the same formulation, quantity, serving information and delivered total, rather than assuming the retailer is cheaper for every product. Promo codes featured on ShopBack's iHerb page under Deals & Discounts stack with ShopBack Cashback.

## Sources

Facts on this page were checked against these primary sources on 2026-10-27.

- [Official www.iherb.com reference](https://www.iherb.com/), accessed 2026-10-27
- [Official www.shopback.com reference](https://www.shopback.com/iherb), accessed 2026-10-27

Written and maintained by the ShopBack Discover editorial team. Editorial policy: https://discover.shopback.com/editorial-policy.