Overall Score
Based on price, quality, shipping, selection & support
iHerb by the Numbers
iHerb vs The Competition
We compared prices on 20 popular supplements across platforms. Here's how iHerb stacked up:
| Feature | iHerb | Amazon | Vitacost | Local Store |
|---|---|---|---|---|
| Avg. Price | Lowest | +5-15% | Similar | +20-40% |
| Selection | 50,000+ ✓ | Varies | 20,000+ | Limited |
| Quality Testing | iTested ✓ | ✗ | ✗ | ✗ |
| Global Shipping | 185 countries ✓ | Limited | US-focused | ✗ |
| Freshness Control | Climate-controlled ✓ | Varies | ✓ | Varies |
| Rewards Program | ✓ | Prime only | ✓ | Varies |
Price Check Tip
iHerb wins big on specialty supplements and international shipping. For common vitamins in the US, Amazon Prime sometimes matches prices — but lacks quality verification.
The Honest Breakdown
👍 What's Great
- 15-40% cheaper than local stores
- iTested third-party quality verification
- Climate-controlled warehouses
- Massive selection (50K+ products)
- Ships to 185 countries
- Supports 22 languages
- Rewards on every purchase
- Free shipping thresholds
- 24/7 customer support
👎 What's Not
- International shipping takes 5-14 days
- Customs/import duties may apply
- Some products restricted by country
- Website can be overwhelming
- 60-day return policy (unopened only)
- Coupon stacking is limited
How to Get the Best Deals
Check the Weekly Deals
iHerb rotates 20% off deals on different brands each week. Bookmark the deals page and stock up when your favorites go on sale.
Use Auto-Ship for Extra Savings
Subscribe to auto-delivery for products you use regularly. You'll get 5% off plus never run out.
Hit Free Shipping Thresholds
$20 in the US, $40 internationally. Plan your orders to hit these marks and save on shipping.
Stack Rewards + Referrals
Earn loyalty credits on every order. Refer friends for bonus credits. Credits never expire.
The bottom line: iHerb offers the best combination of price, selection, and quality assurance for supplements. The iTested program alone sets it apart from Amazon and local stores where you're trusting labels blindly.
Best for: International buyers (huge savings), quality-focused shoppers (iTested), bulk buyers (rewards add up), and anyone wanting brands not available locally.
Skip if: You need supplements today (shipping takes days), hate online shopping, or only buy one bottle occasionally (shipping might not be worth it).
Ready to Save on Supplements?
50,000+ products. Prices 15-40% lower. Quality you can trust.
Shop iHerb Now →