Thorne Zinc Picolinate vs Igennus Chelated Zinc Complex
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Thorne Zinc Picolinate and Igennus Chelated Zinc Complex.
Last verified: 01 Mar 2026 · Based on 76 reviews
Our Verdict: Thorne Zinc Picolinate or Igennus Chelated Zinc Complex?
Thorne wins on effectiveness (84/100 vs 76/100) and ingredient quality (91 vs 88), with an overall score of 85/100. Pick Igennus instead if budget is key: it costs £6.43 less, includes copper to prevent depletion, and offers superior tolerability even on an empty stomach.
— AIScored Editorial Team
Thorne Zinc Picolinate scores 85.0/100 vs Igennus Chelated Zinc Complex at 81.0/100. Thorne Zinc Picolinate wins on effectiveness, ingredient quality, certifications. Igennus Chelated Zinc Complex is stronger on value for money and side effects.
Thorne Zinc Picolinate vs Igennus Chelated Zinc Complex: What Does the Data Say?
Both products use zinc picolinate as their base form, which is among the better-absorbed options compared to cheaper oxide or gluconate. The key difference is that Igennus adds zinc bisglycinate alongside the picolinate, plus includes copper bisglycinate in the formula itself — meaning you get a dual-chelated complex in one tablet. Thorne's offering is a single-form zinc without copper, so you'd need to supplement copper separately if using it long-term. Thorne scores higher overall at 85/100 versus Igennus's 81/100, but Igennus edges ahead on value at 83/100 compared to Thorne's 74/100 — and at £14.95 for 180 tablets, the price difference is substantial against Thorne's £21.38.
If you want the simplest, highest-quality single-ingredient zinc and don't mind managing copper separately, Thorne is the cleaner choice — particularly if you're already taking a multi that includes copper. Its ingredient quality score of 91/100 reflects Thorne's well-regarded manufacturing standards.
For most people, though, Igennus makes more practical sense. The built-in copper removes the need for an extra supplement, stomach tolerance appears better across reviewers, and the six-month supply format suits anyone looking to commit to consistent long-term use without frequent reorders.
How Do the Scores Compare?
Zinc Picolinate 22mg
Thorne
|
Igennus Clean Chelated Zinc...
Igennus Healthcare Nutrition
|
|
|---|---|---|
| Overall Score | 85.0 | 81.0 |
| Effectiveness |
84.0/100
Best
|
76.0/100 |
| Ingredient Quality |
91.0/100
Best
|
88.0/100 |
| Value for Money | 74.0/100 |
83.0/100
Best
|
| Side Effects | 86.0/100 |
91.0/100
Best
|
| Certifications |
89.0/100
Best
|
70.0/100 |
| Best Price |
£13.17
Amazon UK →
Cheapest
|
£14.95 Amazon UK → |
| Form | N/A | Tablet |
| Dose | N/A | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 63 | 13 |
Zinc Picolinate 22mg
Pros
- ✓Zinc picolinate is among the most bioavailable zinc forms — well absorbed even with reduced stomach acidity
- ✓Thorne Research brand known for rigorous purity testing, NSF certification, and minimal excipients
- ✓Widely reported benefits: reduced hair loss, clearer skin, stronger nails, fewer colds
- ✓Small capsules, neutral taste, no significant aftertaste — easy to incorporate daily
Cons
- ✗Mild nausea possible if taken on an empty stomach — best taken with food
- ✗Long-term use requires copper supplementation to prevent copper depletion
- ✗Premium brand pricing — higher cost per serving than budget zinc options
- ✗Dosage (15–22mg) may be insufficient for therapeutic use in severe deficiency without medical guidance
Best For
Igennus Clean Chelated Zinc Pico...
Pros
- ✓Highly tolerated — multiple reviewers explicitly note no nausea or stomach upset, even when taken on an empty stomach
- ✓Copper bisglycinate included at a balanced ratio, preventing zinc-induced copper depletion for safe long-term use
- ✓Dual chelated forms (picolinate + bisglycinate) offer superior absorption over cheaper gluconate or oxide forms
- ✓Clean, verifiable formula — no magnesium stearate, titanium dioxide, artificial colours, or fillers; UK GMP-manufactured
Cons
- ✗Not effective for all conditions — one reviewer saw no benefit for gastritis, and zinc's evidence for gut inflammation is limited
- ✗Effects take time to assess; short-term users (under 2–4 weeks) cannot judge efficacy reliably
- ✗Third-party testing not independently confirmed despite 'lab verified' marketing claim
- ✗Tablet form may not suit those preferring capsules or liquids
Best For
Score Breakdown: Thorne Zinc Picolinate vs Igennus Chelated Zinc Complex
Thorne Zinc Picolinate is a well-regarded supplement using zinc picolinate, one of the most bioavailable forms of zinc, bound to picolinic acid for superior absorption even in low-stomach-acid conditions.
What are the key differences?
Frequently Asked Questions
Which is better, Thorne Zinc Picolinate or Igennus Chelated Zinc Complex? ▼
Is Thorne Zinc Picolinate worth the price compared to Igennus Chelated Zinc Complex? ▼
Which has fewer side effects? ▼
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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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