Product Image

L-OptiZinc 30 mg

NOW
4.7
★ ★ ★ ★ ★
(21733 ratings)
Zinc 30 mg
Product Image
Score86
L-OptiZinc monomethionine provides a useful zinc source at a substantial amount. It suits targeted zinc support better than broad wellness, and extended daily use requires attention to copper balance.
How scoring works
Quantity:100 Capsule(s) • (100 servings)
Goals:
General Health
Immunity
Hair Health
Vision Support
Testosterone Support
Skin Health

Score 86

L-OptiZinc monomethionine provides a useful zinc source at a substantial amount. It suits targeted zinc support better than broad wellness, and extended daily use requires attention to copper balance.
How scoring works
$7.79($0.07 per serving)
Pure Formulas
$ 7.83
Daily Vita
$ 8.10
iHerb
$ 8.56
Amazon
$ 7.79
Vitacost
$ 9.03
iHerb
$ 8.56
Report prices

Analysis

Each capsule provides 30 mg zinc as L-OptiZinc monomethionine, a purposeful amount for targeted supplementation. Zinc supports normal immune function, tissue repair, and many enzyme processes, with the clearest practical value when intake or status is low.

The single-mineral focus offers depth but not broad coverage for skin, hair, vision, general health, or testosterone goals. It does not supply the structural nutrients, antioxidants, essential fats, or other cofactors needed for a comprehensive formula. The added 0.3 mg copper offers partial balance but is small relative to the zinc amount.

A small copper addition partly improves long-term mineral balance, although it is modest relative to the zinc amount. The disclosed amount and simple serving make the product easy to judge, while the capsule format is a matter of personal preference rather than a major performance advantage.

Who is it for
  • Adults with low dietary zinc intake
  • Users seeking a focused single-mineral supplement
  • People who prefer a capsule serving
Best for
  • Targeted zinc supplementation
  • Supporting normal immune and enzyme function
  • Short-term or need-based use

Pros

  • Uses a well-absorbed zinc monomethionine form
  • Elemental zinc amount is clearly disclosed
  • Focused formula is easy to assess
  • Meaningful amount for correcting low intake

Cons

  • Covers only one nutrient pathway
  • Included copper is small relative to the zinc amount
  • 30 mg may be more than needed for routine maintenance
  • Capsule delivery offers no special absorption advantage

Warnings

  • Taking 30 mg zinc on an empty stomach may cause nausea
  • Separate zinc from tetracycline or quinolone antibiotics because it can reduce their absorption
  • Prolonged daily use still requires attention to total zinc and copper intake despite the small copper addition

Nutrient quality

91 Highest impact

Monomethionine provides a premium zinc form at a meaningful amount. The small copper addition improves the design but does not fully resolve long-term mineral-balance concerns.

Ingredient transparency

82 Highest impact

Both mineral amounts and forms are stated without a hidden blend. Full use directions and capsule excipients are not included in the supplied data.

Customer satisfaction

72 High impact

The supplied aggregate result is strong and supported by a very large feedback base. No comment-level evidence is available, so recurring problems and purpose-specific experiences remain unknown.

Value for money

98 Highest impact

A premium zinc form and useful amount come at an exceptionally low serving cost. The small copper amount adds balance without inflating the formula.

Report analysis

Goals

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

L-OptiZinc supplies a well-absorbed form of a foundational trace mineral. The amount can support zinc status, immune function, and many enzyme-dependent processes.

The formula is narrow but delivers its main nutrient with strong form quality and clear dosing. A small copper amount is included, though it may not fully balance long-term daily use of this zinc dose.

Study evidence
Zinc Supportive 60 studies
Immunity
Immunity
Impact
Highest effect
A Goal FitA Strength of SupportC- CoverageA+ Formula Quality
Zinc · 30 mg

Zinc directly supports immune-cell development, signaling, and barrier function at a strong supplemental amount. L-OptiZinc monomethionine is a well-absorbed and clearly identified form.

A small copper addition partly addresses long-term mineral balance, although it is below the usual balancing range. The formula is streamlined and deep for zinc support but does not cover multiple immune pathways.

Study evidence
Zinc Supportive 73 studies
Hair Health
Hair Health
Impact
Highest effect
B+ Goal FitA+ Strength of SupportD+ CoverageA Formula Quality
Zinc · 30 mg

L-OptiZinc supplies a well-absorbed zinc form that supports follicle growth when zinc status is low. The substantial amount is paired with a small amount of copper for partial mineral balance.

Clear disclosure and a focused formula make the zinc contribution easy to judge. The copper amount is modest relative to the zinc, so prolonged daily use may still weaken mineral balance.

Study evidence
Copper Adverse 4 studies
Zinc Supportive 22 studies
Vision Support
Vision Support
Impact
Highest effect
B+ Goal FitA Strength of SupportD CoverageA Formula Quality
Zinc · 30 mgCopper · 0.3 mg

Zinc supports retinal enzymes, vitamin A transport, and melanin production, and it is a core mineral in the AREDS2 framework. A standalone zinc product still lacks carotenoids and antioxidant vitamins needed for broad vision coverage.

L-OptiZinc monomethionine is a well-absorbed branded form, and a small copper amount is included. Copper is present but below the usual balancing range, so total long-term zinc and copper intake still matters.

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

Zinc is essential for testosterone synthesis, with the clearest benefit when low zinc status is corrected. The product is focused and well dosed but does not address stress, vitamin D, or other endocrine pathways.

Monomethionine is a well-absorbed form and a small copper addition improves long-term balance. Sustained 30 mg zinc can still impair copper status, and the 0.3 mg copper amount may not fully offset that risk.

Study evidence
Zinc Disputed 7 studies
Skin Health
Skin Health
Impact
High effect
B- Goal FitA- Strength of SupportD CoverageB+ Formula Quality
Zinc · 30 mgCopper · 0.3 mg

Well-absorbed zinc supports normal wound repair, barrier function, and inflammatory control. The product is useful when zinc intake is inadequate but does not provide hydration or structural skin actives.

The serving is relatively high, and the small copper amount may not fully balance regular long-term use. Extended daily use could gradually lower copper status despite the included copper.

Study evidence
Copper Supportive 16 studies
Zinc Supportive 66 studies

Ingredients

IngredientAmount per serving
Zinc (L-OptiZinc Monomethionine)
 30 mg
Copper (Copper Amino Acid Chelate)
 0.3 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
Zinc (L-OptiZinc Monomethionine) · 30 mg OverallScore96
A+ Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value

L-OptiZinc monomethionine provides a well-absorbed form, while vegetarian capsules offer a practical delivery method. The 30 mg dose includes some copper, but less than the usual balancing range. Serving cost is highly economical for the delivered dose.

View ingredientView products
Loading alternative details
82 Performance

Zinc Picolinate 25 mg

Thompson
Strong zinc-form quality and a practical dose make this a more dependable routine option than the original. Picolinate is a well-absorbed zinc form, and the amount is meaningful without crossing the usual adult upper limit. The simple formula and very low serving cost make it a practical zinc supplement.
82 Performance

Zinc 30 mg

Nature's Life
Strong zinc-form quality and a practical dose make this a more dependable routine option than the original. Zinc picolinate with copper provides a coherent, economical mineral-balance formula. The zinc amount is substantial, and repeated copper entries make the total less clear than it should be.
81 Performance

Zinc Picolinate 22 mg

Solgar
Strong zinc-form quality and a practical dose make this a more dependable routine option than the original. Picolinate offers strong absorption potential at a useful maintenance amount. The focused formula and very low serving cost make it a practical choice without an obvious dosing excess.
80 Budget

Zinc Chelate 30 mg

Nature's Way
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. Zinc bisglycinate provides a well-absorbed form at a robust daily amount. The focused capsule is clearly labeled and very inexpensive, but no copper is included.
81 Budget

Chelated Zinc 30 mg

Swanson
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. A branded glycinate chelate offers excellent absorption potential at a substantial amount. The simple capsule is highly economical, though sustained use without copper may impair mineral balance.
80 Budget

Chelated Zinc 30 mg

Carlson
Lower recurring cost makes this a more economical zinc option than the original while retaining a clearly characterized active profile. Glycinate chelate offers high-quality absorption and tolerance at a robust amount. Zinc glycinate chelate is a highly regarded form for absorption and tolerance.
90 Value

OptiZinc

Source Naturals
The combination of form quality, practical dosing, and serving value provides a stronger quality-to-cost balance than the original. Zinc methionine provides a well-absorbed chelated form at a robust amount, and added copper offers partial balance. The copper amount is small relative to the zinc, but the formula is safer for sustained use than unbalanced high-dose options.
89 Value

Chelated Zinc 30 mg

Carlson
The combination of form quality, practical dosing, and serving value provides a stronger quality-to-cost balance than the original. Glycinate chelate offers high-quality absorption and tolerance at a robust amount. Zinc glycinate chelate is a highly regarded form for absorption and tolerance.
89 Value

Zinc Picolinate 22 mg

Swanson
The combination of form quality, practical dosing, and serving value provides a stronger quality-to-cost balance than the original. Picolinate provides a well-absorbed form at a practical maintenance amount. Zinc picolinate is a well-regarded form with favorable absorption.
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. 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
  3. 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
  4. Intestinal and systemic immune responses to an oral cholera toxoid B subunit whole-cell vaccine administered during zinc supplementation.
    Karlsen TH; Sommerfelt H; Klomstad S; Andersen PK; Strand TA; Ulvik RJ; Ahrén C; Grewal HM · Infection and immunity · 2003
    Randomized trial30 participantsImmunity forZinc
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  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. 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
  32. 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
  33. 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
  34. 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
  35. Clinical, endocrinological and biochemical effects of zinc deficiency.
    Prasad AS · Clinics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  36. Clinical, endocrinologic, and biochemical effects of zinc deficiency.
    Prasad AS · Special topics in endocrinology and metabolism · 1986
    Narrative reviewTestosterone Support forZinc
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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