iHerb vs Zenni Optical
The facts we hold on both, side by side. Checked October 15, 2026.
In short
- iHerb gets more monthly visits than Zenni Optical: about 48M vs 8.7M.
- iHerb runs more live Meta ads than Zenni Optical: 512 vs 364.
- iHerb advertised on more days in the past 12 months: 18 vs 15.
| Fact |  iHerb |  Zenni Optical |
|---|---|---|
| Monthly visits (SimilarWeb) | 48M (Sep 2026) | 8.7M (Sep 2026) |
| Live Meta ads | 512 | 364 |
| Store created | Dec 2016 | Dec 2016 |
| Based in | United States | United States |
| Niche | Vitamins & Supplements | Eyeglasses & Contacts |
| Payment options detected | Adyen Online Payments, Afterpay | Affirm, Afterpay |
Questions shoppers ask
- What is the difference between iHerb and Zenni Optical?
- iHerb gets more monthly visits than Zenni Optical: about 48M vs 8.7M. iHerb runs more live Meta ads than Zenni Optical: 512 vs 364. iHerb advertised on more days in the past 12 months: 18 vs 15.
- Do iHerb and Zenni Optical sell the same things?
- Both are listed in related niches: iHerb in Vitamins & Supplements, Zenni Optical in Eyeglasses & Contacts.
Facts from the Meta Ad Library, SimilarWeb, Trustpilot and each store; a fact only one of them has is left out. Is iHerb legit? · Is Zenni Optical legit?