PlainVitamins

Immu-Stay

by Xtendlife · capsule · 90 vege capsules

  • On the market (NIH)
  • UPC 9 421901 419226
  • DSLD label 318033
  • Serving 3 to 6 capsules; amounts per 6 capsules
  • 15 servings

Immu-Stay by Xtendlife lists 20 ingredients, 20 with an amount per serving of 6 capsules, such as 164 mg of vitamin C, 28 mg of magnesium, 9 mg of zinc and 0.4 mg of copper, beside 1 Nutrition Facts row (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on October 24, 2024.

What is in Immu-Stay?

Each row as the label prints it, per serving of 6 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Immu-Stay: Supplement Facts rows against the market (DSLD label 318033, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories20 Calories
Total Carbohydrates3 g1%Carbohydrate in Immu-Stay against 21,979 products3 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.3 g

47% of 21,979 products listing carbohydrate give more (median 3 g).

Vitamin Cas Calcium Ascorbate, Magnesium Ascorbate164 mg182%Vitamin C in Immu-Stay against 18,583 products164 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg164 mg

Higher than 61% of 18,583 products listing vitamin C (median 100 mg).

Magnesiumas Magnesium Ascorbate28 mg7%Magnesium in Immu-Stay against 14,003 products28 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg28 mg

76% of 14,003 products listing magnesium give more (median 86 mg).

Zincas Zinc Citrate9 mg82%Zinc in Immu-Stay against 13,186 products9 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg9 mg

59% of 13,186 products listing zinc give more (median 11 mg).

Copperas Copper Gluconate0.4 mg44%Copper in Immu-Stay against 6,468 products0.4 mg per serving; the middle half of products list 0.5 mg to 2 mg, the median 1 mg.DV 0.9 mgUL 10 mg0.4 mg

81% of 6,468 products listing copper give more (median 1 mg).

Manganeseas Manganese Citrate2.9 mg126%Manganese in Immu-Stay against 7,016 products2.9 mg per serving; the middle half of products list 1 mg to 3.92 mg, the median 2 mg.DV 2.3 mgUL 11 mg2.9 mg

Higher than 71% of 7,016 products listing manganese (median 2 mg).

Andrographis leaf extract800 mgAndrographis in Immu-Stay against 213 products800 mg per serving; the middle half of products list 100 mg to 400 mg, the median 200 mg.800 mg

Higher than 89% of 213 products listing andrographis (median 200 mg).

Olive leaf extract750 mgOlive in Immu-Stay against 822 products750 mg per serving; the middle half of products list 30 mg to 300 mg, the median 100 mg.750 mg

Higher than 93% of 822 products listing olive (median 100 mg).

Eleuthero root extract400 mgEleuthero in Immu-Stay against 726 products400 mg per serving; the middle half of products list 50 mg to 200 mg, the median 100 mg.400 mg

Higher than 88% of 726 products listing eleuthero (median 100 mg).

Turmeric root extract350 mgTurmeric in Immu-Stay against 2,369 products350 mg per serving; the middle half of products list 50 mg to 500 mg, the median 150 mg.350 mg

Higher than 65% of 2,369 products listing turmeric (median 150 mg).

Quercetinas Japanese SophoraQuercetin (Form: from Japanese Sophora PlantPart: flower Genus: Sophora)330 mgQuercetin in Immu-Stay against 1,548 products330 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.330 mg

Higher than 82% of 1,548 products listing quercetin (median 100 mg).

Bilberry fruit extract250 mgBilberry in Immu-Stay against 896 products250 mg per serving; the middle half of products list 20 mg to 100 mg, the median 50 mg.250 mg

Higher than 87% of 896 products listing bilberry (median 50 mg).

Milk Thistle seed extract250 mgMilk Thistle in Immu-Stay against 1,277 products250 mg per serving; the middle half of products list 90 mg to 300 mg, the median 175 mg.250 mg

Higher than 62% of 1,277 products listing milk thistle (median 175 mg).

DIM214 mgDiindolylmethane in Immu-Stay against 425 products214 mg per serving; the middle half of products list 100 mg to 200 mg, the median 100 mg.214 mg

Higher than 82% of 425 products listing diindolylmethane (median 100 mg).

Green Tea leaf extract200 mgGreen Tea in Immu-Stay against 2,595 products200 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.200 mg

Higher than 63% of 2,595 products listing green tea (median 100 mg).

Beta Glucanas YeastBeta Glucan (Form: from Yeast)154 mgBeta-Glucans in Immu-Stay against 335 products154 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.154 mg

Higher than 60% of 335 products listing beta-glucans (median 100 mg).

Bromelainas PineappleBromelain (Form: from Pineapple PlantPart: stem)130 mgBromelain in Immu-Stay against 1,337 products130 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.130 mg

Higher than 66% of 1,337 products listing bromelain (median 50 mg).

Nigella seed extract100 mgBlack Seed in Immu-Stay against 72 products100 mg per serving; the middle half of products list 100 mg to 750 mg, the median 325 mg.100 mg

74% of 72 products listing black seed give more (median 325 mg).

L-Cysteine99 mgCysteine in Immu-Stay against 516 products99 mg per serving; the middle half of products list 30 mg to 200 mg, the median 85 mg.99 mg

Higher than 50% of 516 products listing cysteine (median 85 mg).

N-Acetyl L-Cysteine97 mgN-Acetyl Cysteine in Immu-Stay against 1,259 products97 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.97 mg

71% of 1,259 products listing N-acetyl cysteine give more (median 150 mg).

Piperineas Black PepperPiperine (Form: from Black Pepper)28 mgPiperine in Immu-Stay against 203 products28 mg per serving; the middle half of products list 4.75 mg to 10 mg, the median 5 mg.28 mg

Higher than 91% of 203 products listing piperine (median 5 mg).

Source: NIH ODS Dietary Supplement Label Database, label 318033 (entered October 24, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 750 mg of olive is higher than 93% of the 822 olive products that print an amount; 37 list more.
  • Its 28 mg of piperine is higher than 91% of the 203 piperine products that print an amount; 10 list more.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with Immu-Stay's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions For Use Adult Optimum Dose: 6 capsules per day. Adult Maintenance Dose: 3 capsules per day. Take 6 capsules first thing in the morning or split into 2 doses, in the morning and later in the day.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 318033.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Water.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Best Quality Guaranteed.

How many labels does Immu-Stay have?

4 labels are on file under this name since April 25, 2014: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 318033 (current) Entered October 24, 2024 · on the market · 90 vege capsules · UPC 9 421901 419226
  2. Label 283370 Entered March 22, 2023 · off the market November 25, 2023 · 90 tablets
  3. Label 82078 Entered January 25, 2018 · off the market June 17, 2022 · 90 tablets
  4. Label 32215 Entered April 25, 2014 · off the market November 2, 2017 · 90 tablets

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Natural Products (NZ) LTD Member of the Xtend-Life Group (manufacturer), Christchurch, New Zealand. All Xtendlife products.

Where next?