🟢 100/100

This product looks safe

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

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

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

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)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 28mg
9 mg (82% DV)
✅ Within RDA (0.8× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 9mg UL 40mg
0.4 mg (44% DV)
✅ Within RDA (0.4× RDA of 0.9 mg) 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 0.4mg UL 10mg
2.9 mg (126% DV)
✅ 1.3× RDA — within safe limits 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 2.9mg UL 11mg
Andrographis leaf extract
800 mg
📊 Market median: 500.0mg (115 products)
Median 500.0mg This product: 750mg
Eleuthero root extract
400 mg
📊 Market median: 450.0mg (254 products) 📚 240 studies (Tier A: 0, B: 100)
This product: 350mg
330 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 330mg
📊 Market median: 100.0mg (120 products)
Median 100.0mg This product: 250mg
📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)
This product: 250mg
DIM
214 mg
📊 Market median: 200.0mg (3 products) 📚 10 studies (Tier A: 1, B: 3)
This product: 214mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 200mg
Beta Glucan
154 mg
130 mg
📊 Market median: 200.0mg (136 products) 📚 3 studies — no high-quality reviews
This product: 130mg
Nigella seed extract
100 mg
L-Cysteine
99 mg
N-Acetyl L-Cysteine
97 mg
Piperine
28 mg

Other Ingredients

Hydroxypropyl Methylcellulose Water

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (83% of products) Nutrient (54% of products)

Target Groups

Adult (18 - 50 Years)

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

Product Details

UPC / SKU 9 421901 419226
DSLD Entry Date 2024-10-24
Product Type Other Combinations
Form Capsule
Brand Xtendlife
DSLD ID 318033
Data Updated 2026-04-11

Research Evidence

371 Research Sources
54 Avg Quality Score
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
A Vitamin C supplementation for the primary prevention of cardiovascular disease
Systematic Review The Cochrane database of systematic reviews 2017
A Vitamin C for preventing and treating the common cold
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin C for preventing and treating pneumonia
Meta Analysis The Cochrane database of systematic reviews 2013
A Vitamin E supplementation in pregnancy
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin C supplementation for prevention and treatment of pneumonia
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin C supplementation for prevention and treatment of pneumonia
Systematic Review The Cochrane database of systematic reviews 2021
A Nutritional interventions for preventing and treating pressure ulcers
Meta Analysis The Cochrane database of systematic reviews 2024
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
A Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study
Meta Analysis BMC medicine 2021
View all evidence for Vitamin C →

Compare Similar Products

View all Vitamin C products →