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OptiZinc

Source Naturals
4.8
★ ★ ★ ★ ★
(5903 ratings)
Zinc 30 mg
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Score85
A strong-value zinc methionine tablet with useful partial copper balance, though the copper amount remains modest.
How scoring works
Quantity:120 Tablet(s) • (120 servings)
Goals:
Immunity
General Health
Vision Support
Testosterone Support
Hair Health
Skin Health

Score 85

A strong-value zinc methionine tablet with useful partial copper balance, though the copper amount remains modest.
How scoring works
$10.85($0.09 per serving)
iHerb
$ 10.85
Amazon
$ 10.89
Vitacost
$ 10.85
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Analysis

The zinc methionine complex offers a well-absorbed chelated form at a clear 30 mg amount. A small copper addition makes the formula more balanced than most robust zinc-only products.

Copper is present but remains low relative to the zinc serving. The tablet format is practical, though less streamlined than a capsule for a focused mineral.

Strong value and a large supply make this an appealing targeted zinc option. Long-term users should still account for copper from the rest of the diet and supplement routine.

Who is it for
  • Adults seeking robust zinc with some copper
  • Value-focused users
  • People who tolerate tablets
Best for
  • Targeted zinc supplementation
  • Users wanting partial mineral balance
  • Long-supply routines

Pros

  • Well-absorbed zinc methionine form
  • Includes copper
  • Excellent serving value

Cons

  • Copper amount is only partial balance
  • Pressed tablet delivery
  • Robust zinc amount for indefinite use

Warnings

  • The small copper amount may not fully offset prolonged daily use of 30 mg zinc, especially with other zinc sources.

Nutrient quality

87 Highest impact

The methionine complex provides a well-absorbed zinc form at a robust amount. Added copper improves balance, though its small amount offers only partial support.

Ingredient transparency

83 Highest impact

Both mineral amounts and their complex forms are disclosed without a hidden blend. Inactive tablet ingredients and complete use directions are not supplied.

Customer satisfaction

73 High impact

Aggregate customer metrics indicate strong satisfaction from a very large sample. Missing feedback details prevent judging repeated complaints or whether experiences match the intended use.

Value for money

97 Highest impact

A premium zinc form, balancing copper, and low serving cost provide strong value. The small copper amount is the only notable quality limitation.

Report analysis

Goals

Immunity
Immunity
Impact
Highest effect
A+ Goal FitA+ Strength of SupportC+ CoverageA+ Formula Quality
Zinc · 30 mg

Chelated zinc supplies direct, well-supported immune-cell and barrier support at a robust amount. Copper is included for mineral balance, although its amount is modest relative to the zinc exposure.

The product has excellent depth for one central immune nutrient but does not cover other pathways. Prolonged daily use of high-dose zinc can lower copper status, so total zinc and copper intake should be considered.

Study evidence
Zinc Supportive 73 studies
General Health
General Health
Impact
Highest effect
A+ Goal FitA Strength of SupportC+ CoverageA Formula Quality
Zinc · 30 mg

Chelated zinc gives this focused formula a clear role in foundational immune and metabolic support. The dose is substantial, and the label clearly identifies both zinc and copper.

Coverage remains narrow because it does not address several other general wellness pathways. The modest copper amount offers partial balance but may not fully offset prolonged use of higher-dose zinc.

Study evidence
Zinc Supportive 60 studies
Vision Support
Vision Support
Impact
Highest effect
B+ Goal FitA Strength of SupportD+ CoverageA Formula Quality
Zinc · 30 mgCopper · 300 mcg

Zinc supports vitamin A transport and retinal antioxidant enzymes and is part of established eye-health combinations. It works best as one component of a broader formula rather than as complete vision support.

The methionine complex is clearly disclosed at a substantial amount, and a small copper addition partially supports mineral balance. Prolonged daily use can still lower copper status because the copper amount is modest relative to zinc.

Study evidence
Copper Supportive 7 studies
Zinc Supportive 39 studies
Testosterone Support
Testosterone Support
Impact
Highest effect
B+ Goal FitA Strength of SupportC- CoverageA- Formula Quality
Zinc · 30 mg

Zinc directly supports testosterone production when zinc status is low, but it is not a broad hormone formula. Human evidence supports restoring testosterone in zinc deficiency more clearly than raising it in zinc-replete users.

The 30 mg zinc amount is high enough to correct a shortfall and approaches the upper end of routine supplementation. The zinc methionine sulfate complex form is clearly identified and offers useful systemic absorption, with a small copper amount also disclosed. Long-term use of 30 mg zinc with only 300 mcg copper may still disturb copper balance in susceptible users.

Study evidence
Zinc Disputed 7 studies
Hair Health
Hair Health
Impact
High effect
B- Goal FitA Strength of SupportC- CoverageA Formula Quality
Zinc · 30 mg

A well-absorbed zinc complex may support normal hair growth when zinc status is low. Zinc does not generally stimulate new growth when a deficiency is absent.

The amount is substantial and paired with a small amount of copper, but the copper may not fully balance prolonged daily zinc use. Long-term use of this zinc amount could reduce copper status, so duration and total dietary intake matter.

Study evidence
Copper Adverse 4 studies
Zinc Supportive 22 studies
Skin Health
Skin Health
Impact
High effect
C Goal FitA- Strength of SupportD CoverageA- Formula Quality
Zinc · 30 mgCopper · 300 mcg

Chelated zinc provides a strong amount for normal skin repair and antioxidant enzymes, while copper offers limited balance. The formula supports one useful mineral pathway but does not address collagen structure, hydration, or barrier lipids directly.

The two-mineral design is focused and clearly disclosed. The copper amount is low relative to the zinc dose, so prolonged daily use may still increase the risk of copper depletion.

Study evidence
Copper Supportive 16 studies
Zinc Supportive 66 studies

Ingredients

IngredientAmount per serving
Zinc (Zinc Methionine Sulfate Complex)
 30 mg
Copper (Copper Sebacic Acid Complex)
 300 mcg
Gluten Free Adults 18–50 Dairy Free Vegetarian
Report overview
Zinc (Zinc Methionine Sulfate Complex) · 30 mg OverallScore93
A Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

Zinc methionine sulfate complex provides a well-absorbed chelated form at a robust daily dose. Included copper offers some balance, although its amount is below the usual range paired with higher-dose zinc. The pressed tablet is less ideal than a capsule, but the serving cost is highly efficient.

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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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 30 mg zinc methionine sulfate complex formula. 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. 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. Menkes disease and response to copper histidine: An Indian case series.
    Yoganathan S; Sudhakar SV; Arunachal G; Thomas M; Subramanian A; George R; Danda S · Annals of Indian Academy of Neurology · 2022
    Case series4 participantsHair Health forCopper
  7. Trace element levels in alopecia areata.
    Bhat YJ; Manzoor S; Khan AR; Qayoom S · Indian journal of dermatology, venereology and leprology · 2009
    Case-control study100 participantsHair Health forCopper
  8. UV damage to hair and the effect of antioxidants and metal chelators.
    Millington KR; Marsh JM · International journal of cosmetic science · 2021
    In vitro / ex vivo studyHair Health forCopper
  9. Preserving fibre health: reducing oxidative stress throughout the life of the hair fibre.
    Marsh JM; Davis MG; Lucas RL; Reilman R; Styczynski PB; Li C; Mamak M; McComb DW; Williams RE; Godfrey S; Navqi KR; Chechik V · International journal of cosmetic science · 2016
    In vitro / ex vivo studyHair Health forCopper
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. Noninferiority of Copper Dressings Than Negative Pressure Wound Therapy in Healing Diabetic Wounds: A Randomized Clinical Trial.
    Melamed E; Dabbah J; Israel T; Kan I; Pinzur MS; Roth T; Borkow G · Advances in wound care · 2026
    Randomized trialSkin Health forCopper
  21. Improvement of facial skin characteristics using copper oxide containing pillowcases: a double-blind, placebo-controlled, parallel, randomized study.
    Borkow G; Gabbay J; Lyakhovitsky A; Huszar M · International journal of cosmetic science · 2010
    Randomized trial57 participantsSkin Health forCopper
  22. Radially Electrospun Fibrous Membrane Incorporated with Copper Peroxide Nanodots Capable of Self-Catalyzed Chemodynamic Therapy for Angiogenesis and Healing Acceleration of Diabetic Wounds.
    Huang Y; Qi L; Liu Z; Jiang Y; Wang J; Liu L; Li Y; Zhang L; Feng G · ACS applied materials & interfaces · 2023
    Animal experimentSkin Health forCopper
  23. Engineering copper nanoparticle/polysaccharide-immobilized cotton gauze for accelerated healing of Staphylococcus aureus-infected dermal wounds.
    Sahoo M; Banerjee T; Virkar S; Das S; Biswas S; Mitra D · Journal of materials chemistry. B · 2026
    Animal experimentSkin Health forCopper
  24. Stimulation of Healing of Non-Infected Stagnated Diabetic Wounds by Copper Oxide-Impregnated Wound Dressings.
    Melamed E; Rovitsky A; Roth T; Assa L; Borkow G · Medicina (Kaunas, Lithuania) · 2021
    Single-arm trialSkin Health forCopper
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  34. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  35. What did we learn in 35 years of research on nutrition and supplements for age-related macular degeneration: a systematic review.
    Pameijer EM; Heus P; Damen JAA; Spijker R; Hooft L; Ringens PJ; Imhof SM; van Leeuwen R · Acta ophthalmologica · 2023
    Systematic review27 studies pooledVision Support forCopper
  36. Dietary Nutrient Intake and Progression to Late Age-Related Macular Degeneration in the Age-Related Eye Disease Studies 1 and 2.
    Agrón E; Mares J; Clemons TE; Swaroop A; Chew EY; Keenan TDL; AREDS and AREDS2 Research Groups · Ophthalmology · 2021
    Cohort study8,242 participantsVision Support forCopper
  37. Association between late age-related macular degeneration and dietary intake of copper, iron, zinc and selenium: a 2005-2008 NHANES cross-sectional observational study.
    Lu Y; Li C; Liu Y; Wu T; Lu P · BMC ophthalmology · 2025
    Observational study4,996 participantsVision Support forCopper
  38. Associations between dietary nutrient intake and the risk of multiple age-related ocular diseases: evidence from longitudinal analysis.
    Yang Y; Zou H · The journal of nutrition, health & aging · 2026
    Cohort study103,192 participantsVision Support forCopper
  39. Dietary habits and dietary nutrient intake in patients with age-related macular degeneration: A case-control study.
    Šalková Kráľová J; Kolář P; Kapounová Z; Veselý P; Derflerová Brázdová Z · Central European journal of public health · 2023
    Case-control study151 participantsVision Support forCopper
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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