About 48% of Americans
take in less magnesium than recommended from food and drink.
NIH Office of Dietary SupplementsCopper is the lead active here, studied most for collagen and connective tissue. Zinc is the most studied active here, with 22 human studies behind it, each one cited. Each serving carries 2 mg of Copper, inside the range the published research used. Who it fits: for everyone, adults.
Verified by IngredientMDThe panel on the left is the one we evaluated, line by line.
All 7 actives checked against the clinical evidence: dose, form, and what the research actually shows.
Doses, ratios, and how the ingredients work together. That assessment is the verdict above: "Strong evidence, strong dose".
The verdict is public and identical whether or not a brand pays. A formula that does not clear the bar gets nothing.
Read by the engine against 2.1 million data points from clinical trials, PubMed and more than a hundred vetted sources. No individual reviewer is named or implied.
Cross-checked against 1,550 documented interactions for these actives.
Public health figures the engine matched to this formula's ingredients. Reported by their source, cited and dated, never written by the brand.
About 48% of Americans
take in less magnesium than recommended from food and drink.
NIH Office of Dietary SupplementsAbout 15% of US adults
take in less zinc than the estimated average requirement.
Peer-reviewed analysisMore than 1 in 3 US adults
regularly sleep less than the recommended seven hours a night.
Peer-reviewed analysis36.5% of US adults
aged 18 and over had pain in a hip, knee, or foot in the past 3 months, in the 2019 National Health Interview Survey.
CDC National Center for Health Statistics, 202030.7% of US adults
aged 18 and over had pain in a shoulder, elbow, wrist, or hand in the past 3 months, in the 2019 National Health Interview Survey.
CDC National Center for Health Statistics, 202057.6%
During 2017 to 2018, 57.6% of US adults aged 20 and over reported using a dietary supplement in the past 30 days.
CDC National Center for Health StatisticsAbout 24% of US girls aged 14 to 18
take in less copper from food and drink than the estimated average requirement.
NHANES30.2% of non-Hispanic white women
aged 18 and over reported pain, aching, or stiffness in or around a joint lasting more than 3 months, in the 2013 to 2014 National Health Interview Survey.
CDC National Center for Health Statistics, 201628.4% of non-Hispanic white men
aged 18 and over reported pain, aching, or stiffness in or around a joint lasting more than 3 months, in the 2013 to 2014 National Health Interview Survey.
CDC National Center for Health Statistics, 201695% of US adults
aged 19 and over had vitamin D intake from food and beverages below the Estimated Average Requirement, in National Health and Nutrition Examination Survey data from 2005 to 2016.
National Health and Nutrition Examination Survey analysis, 202018.8% of US adults aged 75 and over
needed the help of another person to carry out routine daily tasks outside the home, and 10.6% needed help with basic daily tasks like bathing or dressing, in the 2014 National Health Interview Survey.
CDC National Center for Health Statistics, 201659 to 66 days
was the median time it took adults to make a new daily health habit automatic across the studies a 2024 review pooled, with individuals ranging from 4 to 335 days.
Systematic review and meta-analysis, 202461% to 74%
About 61 to 74 percent of adults refilling a long-term medicine on their own stopped within a year, versus 33 to 44 percent on one set pickup day.
Cohort study, 2015Meta-analysis, 2016
Zinc acetate lozenges cut cold symptom length by about 2.7 days, versus a roughly seven day average, across three pooled trials.
British Journal of Clinical PharmacologyMeta-analysis, 2024
Across six trials in 739 women, zinc lowered menstrual discomfort scores, with bigger drops after eight weeks or more, even at doses as low as 7 mg daily.
NutrientsMeta-analysis, 2025
Across four trials in women of reproductive age, zinc lowered premenstrual symptom scores, with the biggest gain in mood and a smaller, less certain gain in physical symptoms.
Women and HealthRandomised controlled trial, 2012
In adults given 2 mg of copper a day for 8 weeks, activity of the copper-dependent antioxidant enzyme superoxide dismutase and of ceruloplasmin rose, while cholesterol and other cardiovascular markers did not change.
MetabolismNarrative review, 2018
Copper helps the body build hemoglobin and use iron, and the low blood counts that come with a copper shortfall return to normal once copper is replaced, over about 4 to 12 weeks.
Annals of HematologyMeta-analysis, 2026
Pooling randomised trials in adults, zinc had a small effect on body weight and waist circumference and no detectable effect on body mass index, fat mass, fat-free mass or adipokine levels, and the authors call the size of the changes minor.
Biological Trace Element ResearchSystematic review, 2024
A systematic review of minerals and female fertility maps the reported associations between mineral status and reproductive parameters. The underlying evidence is largely observational and the associations are not established as causal.
NutrientsMeta-analysis, 2021
Pooling randomised trials in adults, copper supplementation produced no detectable change in total or LDL cholesterol, which is a failure to detect a difference rather than evidence that none exists.
Biological Trace Element ResearchSystematic review and meta-analysis, 2016
In children older than six months, zinc may shorten a bout of diarrhea by about half a day across nine trials, on low certainty evidence.
Cochrane Database of Systematic ReviewsMeta-analysis, 2011
Across 36 studies in children under five, zinc modestly increased height growth, adding roughly 0.37 cm at about 10 mg a day for 24 weeks.
BMC Public HealthSystematic review, 2026
A reanalysis of six multinational datasets found a lower zinc to copper ratio in the children studied, an association between two measured mineral levels, not a demonstrated effect of either.
BiometalsSystematic review, 2026
A review found differences in measured zinc, iron and copper levels between groups of children and teens, an association in status markers, not proof copper intake caused it.
NutrientsSystematic review and meta-analysis of observational studies, 2025
Pooling observational studies, higher dietary copper intake was associated with slightly higher lumbar spine bone mineral density (mean difference 0.02 g/cm2), while the hip difference was not statistically significant.
Calcified Tissue InternationalPopulation figures from public health data. Context for the category, not a statement about any individual and not a claim about this product.
Each line below was derived from this formula's own record at the time of verification. Nothing here was written by the brand, and nothing can be added that the evidence does not carry.
Time-to-effect windows the engine read from the trial record. Each is a window a named study measured, cited and dated, never written by the brand.
Across three randomised placebo-controlled trials pooled as individual patient data (199 adults with naturally acquired colds, 80 to 92 mg of elemental zinc a day as acetate lozenges), 70 percent of the zinc group had recovered by day 5 against 27 percent on placebo, and colds ran 2.73 days shorter against a 7 day average duration. A separate meta-analysis of seven lozenge trials (575 participants, doses above 75 mg a day, zinc acetate or zinc gluconate) measured cold duration 33 percent shorter, with no significant difference between the two salts.
In a controlled feeding study in nine healthy men, six weeks of restricted zinc intake raised DNA strand breaks in peripheral blood cells, and four weeks of repletion at 11 mg a day, with 20 mg of supplemental zinc for the first seven days, reversed the rise. In a separate randomised placebo-controlled trial in 40 Ethiopian women eating a high-phytate diet, 20 mg a day of zinc sulfate for 17 days lowered mean comet tail moment from 39.7 to 30.0 while plasma zinc did not change significantly. Both windows were measured on a DNA damage marker in blood cells, not on a symptom.
In an 8 week pilot with a parallel placebo group, 8 young women taking 2 mg of copper a day as copper glycinate showed a 9 percent mean rise in serum ceruloplasmin and a 75 percent rise in diamine oxidase, alongside a 39 percent fall in plasma F2-alpha isoprostanes. Erythrocyte copper-zinc superoxide dismutase did not change. In a separate 4 week double-blind crossover in 20 men with moderately high cholesterol at the same 2 mg a day, copper moved no measure across the whole group and raised superoxide dismutase and diamine oxidase only in the 10 men who started below the median. Both are small and both measured enzymes in blood, not a symptom.
After a single 1500 mg oral dose of glucosamine sulfate in a randomized crossover study of 10 healthy adults, glucosamine was followed in blood over 24 hours, and its metabolite glucosamine-6-sulfate peaked at 6 to 8 hours with a longer half-life.
In an open-label, single-arm trial of 29 healthy adults taking 1500 mg glucosamine hydrochloride daily, stool characteristics changed within the 2 weeks of intake.
The same eight healthy men then took 10 mg of boron daily with breakfast for seven days, with an 8 a.m. blood draw on day seven. Mean plasma free testosterone increased and mean plasma estradiol decreased significantly, while dihydrotestosterone, cortisol and vitamin D were elevated and all three inflammatory markers fell. The authors describe this as the first human report of a rise in free testosterone after boron intake. There is no placebo arm across the seven days and the sample is eight men, so the one-week figure rests on a single small study.
Windows measured in the cited trials. Context for how the active behaves over time, not a statement about any individual and not a claim about this product.
Six ingredients, from each one's own page.
A looser stool can turn up the same day at the higher end. Sleep and cramp changes usually settle in across two to four weeks, because it is refilling a body-wide store.
Blood zinc moves within days. The parts you would notice, skin behaviour and immune resilience, take four to twelve weeks of steady daily intake.
The enzymes that need copper get their supply within days. The change shows on a blood panel rather than in how you feel, and any felt difference takes weeks.
The change is gradual and shows up as less stiffness in the first hour of the day rather than as a sensation you can time.
Nothing arrives in a day. Mineral status moves over four to twelve weeks of daily use, and a blood panel is where you would see it.
Plasma boron tracks intake within a day or two because it isn't stored. The change shows up in mineral balance and hormone measures over a week or two.
How each ingredient usually behaves over time, from its own page on IngredientMD. General timing for the ingredient, not a measurement of this product.
It is a liquid, so the serving can be adjusted and it suits anyone who would rather not swallow a capsule.
Because the effect builds and holds only with continued daily use, a steady recurring supply is the practical way to keep it going.
Put an earned verification on your own product page.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This record is not medical advice. Always consult your healthcare provider before starting any supplement regimen.