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Zinc A.G.

4.9
★ ★ ★ ★ ★
(556 ratings)
Zinc 20 mg
Product Image
Score82
Two quality chelated forms are appealing, but duplicate 20 mg entries create a major dose ambiguity. Verify whether the serving contains 20 or 40 mg before use.
How scoring works
Tablet
Quantity:60 Tablet(s) • (60 servings)
Goals:
General Health
Immunity
Testosterone Support
Skin Health

Score 82

Two quality chelated forms are appealing, but duplicate 20 mg entries create a major dose ambiguity. Verify whether the serving contains 20 or 40 mg before use.
How scoring works

Also available as

1 option
180 servings Zinc 20 mg • 180 Tablet(s) • 180 servings $47.95 ($0.26 per serving)
$17.50($0.29 per serving)
iHerb
$ 17.95
Pure Formulas
$ 17.50
Report prices

Analysis

The tablet lists zinc arginate and zinc glycinate, each at 20 mg. Those chelated forms offer good absorption potential.

The repeated amounts may describe one combined 20 mg total or a 40 mg sum, and the supplied data do not resolve that distinction. The physical label must be checked because safety and copper-balance implications differ materially.

Sixty servings provide moderate value in one tablet. It fits users who want chelated zinc only after confirming the elemental total.

Who is it for
  • Adults seeking chelated zinc
  • Users who can confirm the elemental total
  • People who prefer one tablet
Best for
  • Arginate and glycinate zinc forms
  • One-tablet dosing
  • Use after dose verification

Pros

  • Uses two chelated zinc forms
  • Requires one tablet
  • Clearly names arginate and glycinate

Cons

  • Two 20 mg entries make the total unclear
  • No copper is included
  • Hard tablet offers standard dissolution
  • Serving value is moderate

Warnings

  • Verify whether the actual elemental total is 20 or 40 mg before use
  • If the total is 40 mg, prolonged daily use may reduce copper absorption
  • Zinc can cause nausea and interfere with some antibiotics

Nutrient quality

94 Highest impact

Chelated zinc forms and a practical amount support reliable daily use. The formula remains narrow and does not include copper.

Ingredient transparency

74 High impact

The total zinc amount and both chelated forms are disclosed. Individual form allocation, complete directions, and inactive ingredients remain unclear.

Customer satisfaction

69 High impact

The aggregate rating is exceptionally strong and the evidence base is adequate. Specific experience details are unavailable, so complaint patterns and purpose fit remain uncertain.

Value for money

88 Highest impact

Premium chelates and practical dosing provide good value. Only moderate serving economy keeps it below the strongest value options.

Report analysis

Goals

General Health
General Health
Impact
Highest effect
A Goal FitA- Strength of SupportC CoverageB+ Formula Quality
Zinc · 20 mg

Zinc glycinate and arginate provide absorbable chelated forms for immune, enzyme, and tissue-maintenance functions. The maintenance-level amount is clearly disclosed and remains below the adult upper limit.

Combining two zinc forms may offer delivery variety, but the label does not show how the total is divided. The product has strong depth for zinc while leaving wider daily nutrient needs uncovered.

Study evidence
Zinc Supportive 60 studies
Immunity
Immunity
Impact
Highest effect
A- Goal FitA Strength of SupportC- CoverageA- Formula Quality
Zinc · 20 mg

A practical zinc amount in arginate and glycinate forms provides focused support for normal immune-cell function. The chelated forms are favorable choices for daily absorption.

Support is intentionally narrow because no vitamin C, vitamin D, selenium, or barrier-focused nutrient is included. The label appears to repeat the same zinc amount across two forms, which makes their individual contributions unclear.

Study evidence
Zinc Supportive 73 studies
Testosterone Support
Testosterone Support
Impact
High effect
B- Goal FitA- Strength of SupportC- CoverageA Formula Quality
Zinc · 20 mg

Zinc provides a relevant route to testosterone support. The disclosed amount appears meaningful for that focused role.

The formula remains narrow rather than comprehensive. Zinc A.G. is best viewed as targeted support rather than proof of a clinical benefit.

Study evidence
Zinc Disputed 7 studies
Skin Health
Skin Health
Impact
High effect
C Goal FitA- Strength of SupportD+ CoverageA- Formula Quality
Zinc · 20 mg

Zinc supports normal repair, barrier function, and antioxidant enzymes but covers only one part of skin health. The 20 mg amount is substantial enough to influence zinc status.

Arginate and glycinate are favorable chelated forms, although the duplicated entries do not state how much each contributes. Long-term use alongside other zinc products may reduce copper status because no copper is included.

Study evidence
Zinc Supportive 66 studies
Hair Health
Hair Health
Impact
Moderate effect
C+ Goal FitB- Strength of SupportD- CoverageB- Formula Quality
Zinc · 20 mg

Zinc may reduce deficiency-related shedding, but it is a narrow intervention rather than a complete hair formula. The link between zinc deficiency and hair loss is established, while extra zinc offers uncertain benefit when status is adequate.

The listed zinc amount is meaningful for targeted support. The two chelated forms are compatible, though long-term high zinc intake without copper may promote mineral imbalance.

Study evidence
Zinc Supportive 22 studies

Ingredients

IngredientAmount per serving
Zinc (Zinc Arginate, Zinc Glycinate)
 20 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
Zinc (Zinc Arginate, Zinc Glycinate) · 20 mg OverallScore84
A Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyC Value

Zinc glycinate and arginate provide absorbable chelated forms, though the hard tablet is less favorable for dissolution. The 20 mg dose suits daily maintenance with a low mineral-imbalance risk without copper. The moderately elevated cost remains reasonable for the higher-quality zinc forms.

View ingredientView products
Loading alternative details
87 Performance

Zinc Picolinate 25 mg

Thompson
<p>Zinc picolinate offers strong absorption potential at a meaningful amount that stays below the usual adult upper limit. The simple formula improves dose clarity, though it omits copper and any non-zinc ingredients supplied by the original.</p>
87 Performance

Zinc Picolinate 22 mg

Solgar
<p>A moderate zinc picolinate amount provides a well-absorbed form without pushing the dose as high as many alternatives. The focused label is easy to assess, but copper and any complementary original ingredients are absent.</p>
86 Performance

Chelated Zinc 30 mg

Carlson
<p>Zinc glycinate chelate supports absorption and tolerance with a clearly stated amount. The single-active design is more transparent than complex blends, though extended daily use without copper may weaken mineral balance.</p>
84 Budget

Zinc Gluconate 30 mg

Swanson
<p>Zinc gluconate provides a clearly disclosed, substantial amount at exceptionally low routine cost. Absorption is reasonable, but sustained daily use without copper may reduce copper status and any non-zinc actives from the original are not replaced.</p>
85 Budget

Zinc Chelate 30 mg

Nature's Way
<p>Zinc bisglycinate offers a well-absorbed form with clear dosing at very low serving cost. The focused capsule omits copper and any supporting ingredients in the original, so prolonged use still requires attention to mineral balance.</p>
86 Budget

L-OptiZinc 30 mg

NOW
<p>Zinc monomethionine provides strong absorption potential with a small amount of chelated copper at economical serving value. The copper addition is too small to fully balance sustained high zinc use, and the focused formula does not replace other original actives.</p>
85 Value

Chelated Zinc 30 mg

Swanson
<p>A branded zinc glycinate chelate combines strong absorption potential with very favorable serving value. The substantial amount and absence of copper make prolonged daily use less suitable without attention to dietary copper.</p>
85 Value

OptiZinc

Source Naturals
<p>Zinc methionine plus a small copper addition offers a useful balance of form quality, disclosure, and serving value. Copper remains modest relative to zinc, and the formula does not preserve any non-zinc actives from the original.</p>
82 Value

Zinc Glycinate

NOW
<p>Zinc bisglycinate provides strong absorption potential at favorable serving value, with pumpkin seed oil as a modest complementary ingredient. Copper is absent, so sustained daily use still needs attention to overall mineral balance.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  2. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  3. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  4. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  5. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  6. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  7. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
  8. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  9. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  10. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  11. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
  12. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  13. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  14. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  15. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  16. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  17. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  18. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  19. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  20. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forZinc
  21. Environmental exposure to metals and male reproductive hormones: circulating testosterone is inversely associated with blood molybdenum.
    Meeker JD; Rossano MG; Protas B; Padmanahban V; Diamond MP; Puscheck E; Daly D; Paneth N; Wirth JJ · Fertility and sterility · 2010
    Cross-sectional study219 participantsTestosterone Support forZinc
  22. Nonpharmacological Interventions for the Management of Testosterone and Sperm Parameters: A Scoping Review.
    Santos HO; Cadegiani FA; Forbes SC · Clinical therapeutics · 2022
    Scoping reviewTestosterone Support forZinc
  23. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization.
    Fallah A; Mohammad-Hasani A; Colagar AH · Journal of reproduction & infertility · 2020
    Narrative reviewTestosterone Support forZinc
  24. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  25. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc