Zinc · per 15 mg elemental
Thorne vs PureBulk zinc glycinate
PureBulk costs 83% less per 15 mg elemental than Thorne: $0.029 vs $0.17. At one serving a day that is $10.51 a year instead of $60.85, $50.34 less.
Popular brand

Thorne
Zinc Bisglycinate · 30 mg · 60 Capsules
- Per serving
- $0.17 per 15 mg elemental
- A year, one serving a day
- $60.85
- Container
- $20.00 at Vitacost
No. 1 cheapest on our list83% less

PureBulk
Zinc Bis-Glycinate · 300ct 200mg Gel. Caps.
- Per serving
- $0.029 per 15 mg elemental
- A year, one serving a day
- $10.51
- Container
- $22.50 at PureBulk
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Side by side
| Detail | Thorne | PureBulk |
|---|---|---|
| Price per 15 mg elemental | $0.17 | $0.029 |
| A year, one serving a day | $60.85 | $10.51 |
| Container price | $20.00 at Vitacost | $22.50 at PureBulk |
| In the container | 1,800mg elemental zinc | 11,700mg elemental zinc |
| Servings of 15 mg elemental | 120 | 780 |
| Serving on the label | 30 mg | 39 mg |
| Form | Capsules | Capsules |
| Third-party testing | Not listed | Not listed |
| Price checked | Every day | Every day |
Tested means the product is in the testing program's own database (NSF, USP, Informed Sport or Choice, IFOS). Not listed means we didn't find it there, not that it failed a test.
The verdict
PureBulk costs 83% less per 15 mg elemental than Thorne: $0.029 vs $0.17. At one serving a day that is $10.51 a year instead of $60.85, $50.34 less.
We didn't find either one in a third-party testing program's database (NSF, USP, Informed Sport or Choice, IFOS). That doesn't mean either one failed a test.
PureBulk costs more at checkout ($22.50 vs $20.00) because the container holds more: 780 servings of 15 mg elemental against 120.
The labels use different servings (Thorne: 30 mg, PureBulk: 39 mg), so both are priced on the same 15 mg elemental.
We compare price on the same dose. Taste, mixing, other ingredients and how a product suits you are yours to judge, so read both labels before you switch.
The cheapest zinc glycinate today
Best value. Lowest price per serving on this list.
PureBulk Zinc Bis-Glycinate · 300ct 200mg Gel. Caps.Checked less than an hour ago
$0.029 per 15 mg elemental83% less than Thorne per 15 mg elemental
BuySave me money at PureBulk (opens in a new tab)- Nutricost Zinc Bisglycinate · 50 mg · 120 Capsules
Checked less than an hour ago
$0.030 per 15 mg elemental82% less than Thorne per 15 mg elemental
BuySave me money at Vitacost (opens in a new tab) - Healthy Origins Zinc Bisglycinate Chelate
Checked less than an hour ago
$0.037 per 15 mg elemental78% less than Thorne per 15 mg elemental
BuySave me money at Swanson (opens in a new tab)
Cheaper alternatives to Thorne zinc (glycinate)See the full zinc list
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Questions
Is PureBulk cheaper than Thorne?
PureBulk costs 83% less per 15 mg elemental than Thorne: $0.029 vs $0.17. Both prices are checked every day, and this page changes when they do.
Are Thorne and PureBulk the same zinc glycinate?
Both are on our glycinate list: Thorne as capsules, PureBulk as capsules. We compare the labeled amount of the active ingredient, priced per 15 mg elemental, not taste, other ingredients or quality. Prices shown per 15 mg of elemental zinc, not the compound weight. Glycinate is not ranked against other forms.
Is Thorne or PureBulk third-party tested?
We didn't find either one in a third-party testing program's database (NSF, USP, Informed Sport or Choice, IFOS). That doesn't mean either one failed a test.
How is the price per 15 mg elemental worked out?
We divide the container price by how many 15 mg elemental servings the label's amount makes. Thorne: $20.00 ÷ 120 servings of 15 mg elemental. PureBulk: $22.50 ÷ 780 servings of 15 mg elemental. Store prices can change at checkout.
More zinc head-to-heads
- Nature's Bounty vs 21st Century zinc other forms21st Century costs 53% less per 15 mg elemental than Nature's Bounty: $0.007 vs $0.015.
Zinc buying guides
- Best zinc supplements 2026: price per 15 mg elementalZinc glycinate ranked by price per 15 mg of elemental zinc, why the cheapest bottles are 50 mg, the 40 mg upper limit, and when Thorne is worth the price.
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We show prices. We don't sell the products or tell you what to take. How we compare · Disclaimer


