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Zinc 50 mg

4.7
★ ★ ★ ★ ★
(84 ratings)
Zinc 50 mg
Product Image
Score75
A well-absorbed bisglycinate form is undermined by a 50 mg serving that is too high for routine maintenance. It fits short-term or supervised zinc use better than an everyday supplement.
How scoring works
Capsule
Quantity:60 Capsule(s) • (60 servings)
Goals:
Immunity

Score 75

A well-absorbed bisglycinate form is undermined by a 50 mg serving that is too high for routine maintenance. It fits short-term or supervised zinc use better than an everyday supplement.
How scoring works
$14.95($0.24 per serving)
iHerb
$ 17.95
Pure Formulas
$ 14.95
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Analysis

Zinc bisglycinate is a useful chelated form for people who need focused zinc support. The clearly stated 50 mg amount provides far more than a typical maintenance serving.

That amount exceeds the usual adult upper intake level and is a poor match for indefinite daily use. Benefit is most plausible when zinc status is low, while a single mineral cannot cover the wider nutritional needs tied to immunity, skin, hair, vision, or hormone health.

One capsule per serving keeps use simple, and the serving cost is reasonable. The missing copper is the central trade-off because continued high zinc intake can impair copper status.

Who is it for
  • Adults with a confirmed need for high-dose zinc
  • Users seeking a clearly named chelated zinc form
  • People using zinc for a limited period under guidance
Best for
  • Short-term focused zinc supplementation
  • A one-capsule chelated zinc serving
  • Users who tolerate bisglycinate forms well

Pros

  • Uses zinc bisglycinate chelate
  • Clearly states the elemental zinc amount
  • Keeps the active formula simple
  • Provides a convenient one-capsule serving

Cons

  • The 50 mg amount exceeds the usual adult upper intake level
  • No copper is included for mineral balance
  • The single mineral offers little pathway breadth
  • The fixed capsule makes dose reduction inconvenient

Warnings

  • The 50 mg zinc serving may cause nausea or stomach irritation, especially without food.
  • Continued daily use can reduce copper absorption and may contribute to copper deficiency because no copper is included.
  • Zinc can reduce absorption of tetracycline or quinolone antibiotics and penicillamine; follow the medicine-specific spacing directions.

Nutrient quality

69 High impact

Zinc bisglycinate chelate is a well-absorbed form with good tolerance potential. Form quality is high, but the excessive daily amount creates a meaningful copper-depletion and stomach-upset risk.

Ingredient transparency

89 Highest impact

The elemental zinc amount is stated clearly. No proprietary blend hides the listed active doses.

Customer satisfaction

62 Moderate impact

The supplied average is strong, with small response volume. Complaint patterns and purpose-related experiences are not supplied.

Value for money

74 High impact

The asking price is only partly justified by the disclosed formula. Serving value is moderate relative to the formula quality.

Report analysis

Goals

Immunity
Immunity
Impact
High effect
A- Goal FitC- Strength of SupportD- CoverageB- Formula Quality
Zinc · 50 mg

Zinc bisglycinate is directly relevant to immune-cell function and uses a well-absorbed form. The high serving is poorly matched to steady daily immune support.

The 50 mg amount exceeds the usual adult daily upper limit and is better reserved for short-term or supervised use. Continued use without copper may increase copper-depletion risk despite the focused formula.

Study evidence
Zinc Supportive 73 studies
Vision Support
Vision Support
Impact
Moderate effect
C Goal FitC+ Strength of SupportD+ CoverageB Formula Quality
Zinc · 50 mg

Zinc provides a useful but incomplete connection to vision support. Some relevant amounts are useful, while others are better suited to general antioxidant support.

Coverage is concentrated on ocular antioxidant defense. The high zinc amount exceeds the usual daily upper limit and may deplete copper with continued unsupervised use.

Study evidence
Zinc Supportive 39 studies
Hair Health
Hair Health
Impact
Moderate effect
B+ Goal FitC- Strength of SupportF CoverageB+ Formula Quality
Zinc · 50 mg

Zinc bisglycinate is a strong form for deficiency-related shedding, but the 50 mg amount is excessive for routine daily use. High-dose zinc without copper can impair copper status over time.

The formula provides depth in one mineral pathway and nothing for structural or hormonal causes of thinning. Short-term or supervised use is more appropriate than open-ended maintenance.

Study evidence
Zinc Supportive 22 studies
General Health
General Health
Impact
Moderate effect
B+ Goal FitC- Strength of SupportD CoverageB- Formula Quality
Zinc · 50 mg

Zinc bisglycinate offers a well-absorbed form of a foundational trace mineral. Its single-ingredient design is clear but does not provide broad wellness coverage.

The 50 mg serving is excessive for routine daily use and sits above the usual adult upper limit. Continued use without copper may increase the risk of copper depletion, so the dose is better reserved for short-term or supervised use.

Study evidence
Zinc Supportive 60 studies
Testosterone Support
Testosterone Support
Impact
Moderate effect
C Goal FitD+ Strength of SupportF CoverageA- Formula Quality
Zinc · 50 mg

Zinc bisglycinate is a well-absorbed form with a credible role in normal testosterone synthesis when zinc is lacking. The very high daily amount does not imply greater hormone support and makes routine unsupervised use a poor fit.

Each capsule supplies 50 mg of zinc, which exceeds the usual adult daily upper limit and includes no copper. Continued daily use could increase nausea and copper-depletion risk, so the dose is better reserved for short-term or professionally supervised use.

Study evidence
Zinc Disputed 7 studies
Skin Health
Skin Health
Impact
Moderate effect
D Goal FitC Strength of SupportF CoverageB- Formula Quality
Zinc · 50 mg

Zinc bisglycinate supports skin repair and barrier biology, but 50 mg is excessive for routine long-term use. A single mineral also leaves collagen, hydration, and antioxidant pathways uncovered.

The chelated form and amount are fully disclosed. Sustained high intake can impair copper status, so the serving is poorly balanced without copper.

Study evidence
Zinc Supportive 66 studies

Ingredients

IngredientAmount per serving
Zinc (Zinc Bisglycinate Chelate)
 50 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Women
Report overview
Zinc (Zinc Bisglycinate Chelate) · 50 mg OverallScore74
A+ Active Ingredient Quality & BioavailabilityD+ Dose, Safety & Label TransparencyC Value

Zinc bisglycinate is a well-absorbed chelate with good digestive tolerance. The 50 mg serving exceeds the usual daily upper limit and is better suited to short-term or supervised use. The high-dose zinc serving lacks copper, increasing the risk of copper depletion with continued daily use.

View ingredientView products
Loading alternative details
87 Performance

Zinc Picolinate 22 mg

Solgar
The focused 22 mg zinc picolinate formula offers strong absorption and a more practical maintenance amount than the original's aggressive 50 mg zinc amount. Its clear single-active label also removes the uncertainty created by unnecessary or opaque additions.
87 Performance

Zinc Picolinate 25 mg

Thompson
A clearly disclosed 25 mg zinc picolinate dose is easier to use routinely than the original's aggressive 50 mg zinc amount. The simple formula combines favorable absorption with an amount below the usual adult upper limit.
86 Performance

L-OptiZinc 30 mg

NOW
L-OptiZinc monomethionine provides a specific, well-absorbed form that improves on the original's aggressive 50 mg zinc amount. The small copper addition offers some balance, although it may not fully offset sustained intake of 30 mg zinc.
84 Budget

Zinc Gluconate 30 mg

Swanson
Its lower recurring cost improves the value comparison, while 30 mg zinc gluconate reduces the dosing concern compared with the original's aggressive 50 mg zinc amount. The form and amount are clearly stated, though sustained use still calls for attention to copper intake.
85 Budget

Zinc 30 mg

Nature Made
Its lower recurring cost improves the value comparison, and the focused 30 mg zinc gluconate tablet avoids the extra or opaque ingredients in the original's aggressive 50 mg zinc amount. The amount remains substantial without reaching the common 50 mg excess seen in many originals.
85 Budget

Zinc Chelate 30 mg

Nature's Way
Its lower recurring cost improves the value comparison, while 30 mg zinc bisglycinate provides a well-absorbed chelate with a simpler profile than the original's aggressive 50 mg zinc amount. No copper is included, so prolonged daily use still deserves caution.
85 Value

Chelated Zinc 30 mg

Swanson
TRAACS zinc glycinate supplies a specific 30 mg chelate with strong absorption potential, giving better quality for the cost than the original's aggressive 50 mg zinc amount. The capsule stays focused and economical, although it does not include copper.
86 Value

Chelated Zinc 30 mg

Carlson
A 30 mg zinc glycinate chelate combines favorable absorption and digestive tolerance with strong serving value compared with the original's aggressive 50 mg zinc amount. The long supply supports economical use, but ongoing intake may still reduce copper status.
83 Value

Zinc 30 mg

Nature's Life
Zinc picolinate plus copper offers a more complete mineral-balance approach for the cost than the original's aggressive 50 mg zinc amount. The copper addition is useful, although repeated copper entries make the exact total less clear than it should be.
Report alternatives

Sources

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

  1. 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
  2. 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
  3. Zinc for infection prevention in children with sickle cell anemia: a randomized double-blind placebo-controlled trial.
    Namazzi R; Opoka R; Conroy AL; Datta D; Tagoola A; Bond C; Goings MJ; Ryu MS; Cusick SE; Krebs NF; Jang JH; Tu W; Ware RE; John CC · Blood advances · 2023
    Randomized trial252 participantsImmunity forZinc
  4. Effects of Zinc Supplementation on Inflammatory Skin Diseases: A Systematic Review of the Clinical Evidence.
    Dhaliwal S; Nguyen M; Vaughn AR; Notay M; Chambers CJ; Sivamani RK · American journal of clinical dermatology · 2020
    Systematic review22 studies pooledSkin Health forZinc
  5. 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
  6. 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
  7. 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
  8. Hair Loss and Zinc Deficiency: A Cross-Sectional Study.
    Liran O; Vered S; Cohen B; Shapiro Ben David S; Nakhleh A; Rahamim-Cohen D; Azuri J; Adler L · Healthcare (Basel, Switzerland) · 2025
    Cross-sectional study23,975 participantsHair Health forZinc
  9. Role of zinc in chronic telogen effluvium in serum and hair of patients with alopecia.
    Zufishan S; Haque Z; Nazar S; Afaq E; Aamir E; Rafique S · JPMA. The Journal of the Pakistan Medical Association · 2024
    Case-control study100 participantsHair Health forZinc
  10. Antioxidant vitamin and mineral supplements for slowing the progression of age-related macular degeneration.
    Evans JR; Lawrenson JG · The Cochrane database of systematic reviews · 2023
    Meta-analysis3,790 participants5 studies pooledVision Support forZinc
  11. Oral zinc in macular degeneration.
    Newsome DA; Swartz M; Leone NC; Elston RC; Miller E · Archives of ophthalmology (Chicago, Ill. : 1960) · 1988
    Randomized trial151 participantsVision Support forZinc
  12. Treatment response to antioxidants and zinc based on CFH and ARMS2 genetic risk allele number in the Age-Related Eye Disease Study.
    Awh CC; Hawken S; Zanke BW · Ophthalmology · 2015
    Randomized trial989 participantsVision Support forZinc
  13. 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
  14. 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
  15. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  33. Antioxidant vitamin and mineral supplements for age-related macular degeneration.
    Evans JR · The Cochrane database of systematic reviews · 2002
    Systematic review170 participants7 studies pooledVision Support forZinc
  34. A randomized, placebo-controlled, clinical trial of high-dose supplementation with vitamins C and E, beta carotene, and zinc for age-related macular degeneration and vision loss: AREDS report no. 8.
    Age-Related Eye Disease Study Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2001
    Randomized trial3,640 participantsVision Support forZinc
  35. Effect of vitamin A and zinc supplementation on the nutriture of children in Northeast Thailand.
    Udomkesmalee E; Dhanamitta S; Sirisinha S; Charoenkiatkul S; Tuntipopipat S; Banjong O; Rojroongwasinkul N; Kramer TR; Smith JC · The American journal of clinical nutrition · 1992
    Randomized trial133 participantsVision Support forZinc