Home/ Supplements/ Vitamin C/ Immu-Stay

Immu-Stay

product on market Capsule Xtendlife Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 36% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin C, zinc, and magnesium are supported by strong evidence for maintaining immune function and cellular health. These ingredients contribute to the body's antioxidant defenses and metabolic processes. However, the overall evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Immu-Stay
Open Full PDF View on NIH DSLD →
Details

Label Data

3 Capsule(s)
Serving Size
15
Servings
Other Combinations
Product Type
36%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
20 Calorie(s)
Total Carbohydrates
3 Gram(s) (1% DV)
Vitamin C
164 mg (182% DV)
28 mg (7% DV)
Within RDA (0.1× RDA) 316 studies (A:8, B:159)
9 mg (82% DV)
Within RDA (0.8× RDA) 263 studies (A:6, B:134)
0.4 mg (44% DV)
Within RDA (0.4× RDA) 37 studies (A:0, B:11)
2.9 mg (126% DV)
1.3× RDA — within safe limits 9 studies — no high-quality reviews
Andrographis leaf extract
800 mg
Market median: 500.0mg (115 products)
Eleuthero root extract
400 mg
Market median: 450.0mg (254 products) 243 studies (A:0, B:100)
330 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Market median: 100.0mg (120 products)
Market median: 250.0mg (562 products) 55 studies (A:0, B:19)
DIM
214 mg
Market median: 200.0mg (3 products) 11 studies (A:1, B:3)
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
Beta Glucan
154 mg
130 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews
Nigella seed extract
100 mg
L-Cysteine
99 mg
N-Acetyl L-Cysteine
97 mg
Piperine
28 mg

Other Ingredients

Hydroxypropyl Methylcellulose Water
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

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.

Formulation Notes

Xtend-Life Immu-Stay is an advanced dietary supplement formulated with ingredients that are especially selected to support the immune system.

Advanced formula Quality ingredients

Made in New Zealand with imported ingredients

Additional Information

Store in a cool, dry place.

Best Quality Guaranteed

International ph: +6 43 384 2116 USA/Canada Ph: 1888 487 9304

Metadata

Product Details

UPC / SKU9 421901 419226
DSLD Entry Date2024-10-24
Product TypeOther Combinations
FormCapsule
BrandXtendlife
DSLD ID318033
Data Updated2026-04-11
Research

Research Evidence

371
Research Sources
54
Avg Quality
148
Meta Analysis
82
Systematic Review
71
Rct
62
Clinical Trial
2
Regulatory Source
1
Cochrane Review
1
Narrative Review
1
Other
1
Openfda Safety
A Vitamin C supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017 PubMed DOI
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis
Meta Analysis International journal of molecular sciences 2024 PubMed DOI
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021 PubMed DOI
View all evidence for Vitamin C →
Compare

Similar Products

Vitamin C Ester Ascorbyl Palmitate
OL Olympian Labs · Capsule
100
Vitamin C 1000 mg
PurHEALTH · Capsule
100
Ultra C Buffered
New Sun · Capsule
100
Black Elderbarry with Liposomal Vitamin C & Zinc
SunVita Health · Capsule
100
Natural Vitamin C
Herbadiet · Capsule
100
View all Vitamin C products →
Vitamin C research Best Vitamin C All Vitamin C products More from Xtendlife View on NIH DSLD →

This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.