🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 55% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

3 Tablet(s) Serving Size
15 Servings
Other Combinations Product Type
55% Evidence Coverage

Supplement Facts — Evidence Check

Calories
25 Calorie(s)
Total Fat
0.5 Gram(s) (1% DV)
Total Carbohydrates
2 Gram(s) (1% DV)
Protein
1 Gram(s) (2% DV)
333 IU (83% DV)
✅ Within RDA (0.6× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.008325mg UL 0.1mg
8 mg (533% DV)
📊 6.7× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 8mg
10 mg (500% DV)
📊 7.7× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 10mg UL 100mg
300 mcg (81% DV)
✅ Within RDA (0.7× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.3mg UL 1.0mg
10 mcg (167% DV)
📊 4.2× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.01mg
1995 mcg (665% DV)
📊 66.5× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 1.995mg
150 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.15mg UL 1.1mg
4 mg (27% DV)
✅ Within RDA (0.4× RDA of 11 mg) 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 4mg UL 40mg
89 mcg (129% DV)
✅ 1.6× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.089mg UL 0.4mg
0.28 mg (14% DV)
✅ Within RDA (0.3× RDA of 0.9 mg) 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 0.28mg UL 10mg
0.87 mg (44% DV)
✅ Within RDA (0.4× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 0.87mg UL 11mg
35 mcg (29% DV)
✅ Within RDA (1.0× RDA of 0.035 mg) 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.035mg
58 mcg (77% DV)
✅ 1.3× RDA — within safe limits 📚 2 studies — no high-quality reviews
RDA 0.045mg This product: 0.058mg UL 2mg
✅ Within RDA (0.4× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 214mg UL 3500mg
📊 Market median: 200.0mg (198 products) 📚 6 studies — no high-quality reviews
This product: 200mg
Bacopa leaf extract
200 mg
200 mg
📊 Market median: 60.0mg (94 products) 📚 13 studies (Tier A: 0, B: 7)
This product: 200mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 150mg
📊 Market median: 100.0mg (120 products)
Median 100.0mg This product: 150mg
📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)
This product: 150mg
📊 Market median: 250.0mg (60 products) 📚 7 studies (Tier A: 0, B: 1)
This product: 150mg
📊 Market median: 300.0mg (122 products) 📚 22 studies (Tier A: 0, B: 7)
This product: 150mg
📊 Market median: 650.0mg (87 products) 📚 1 studies — no high-quality reviews
This product: 150mg
150 mg
📊 Market median: 500.0mg (283 products) 📚 173 studies (Tier A: 0, B: 62)
This product: 150mg
D-Phenylalanine
149 mg
148 mg
📊 Market median: 496.0mg (192 products) 📚 20 studies — no high-quality reviews
This product: 148mg
L-Carnosine
148 mg
📊 Market median: 500.0mg (861 products) 📚 60 studies (Tier A: 4, B: 13)
This product: 147mg
📊 Market median: 120.0mg (440 products) 📚 187 studies (Tier A: 1, B: 71)
This product: 100mg
Hop cone powder
100 mg
📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)
This product: 100mg
📊 Market median: 250.0mg (182 products) 📚 10 studies (Tier A: 0, B: 2)
This product: 100mg
100 mg
📊 Market median: 500.0mg (223 products) 📚 22 studies (Tier A: 0, B: 1)
This product: 100mg
L-Valine
100 mg
99 mg
📊 Market median: 100.0mg (116 products) 📚 15 studies (Tier A: 0, B: 3)
This product: 99mg
99 mg
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 99mg
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 99mg
98 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 98mg
76 mg
📊 Market median: 200.0mg (52 products) 📚 10 studies (Tier A: 0, B: 6)
This product: 76mg
📊 Market median: 100.0mg (284 products) 📚 10 studies (Tier A: 0, B: 4)
This product: 60mg
Amylase
50 mg
50 mg
📊 Market median: 200.0mg (136 products) 📚 3 studies — no high-quality reviews
This product: 50mg
L-Threonine
50 mg
📊 Market median: 167.0mg (311 products) 📚 182 studies (Tier A: 0, B: 65)
This product: 25mg
Phosphatidyl L-Serine
20 mg
Piperine
19 mg
Vinpocetine
14 mg
200 mcg
📊 Market median: 0.15mg (41 products)
Median 0.15mg This product: 0.2mg
Lithium
61 mcg

Other Ingredients

Microcrystalline Cellulose Enteric Coating Dextrose Silicon Dioxide Sodium Carboxymethyl Cellulose Magnesium Stearate Dicalcium Phosphate Maltodextrin

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (70% of products) Approved Health (4% of products)

Target Groups

Children 4 or More Years of Age Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions For Use Adults: 6 tablets per day. Age 12-18 Years: 3 tablets per day. Take all tablets first thing in the morning or split into 2 doses, in the morning and later in the day.

⚠️ Warnings & Precautions

Contains soy.

Does not contain dairy, gluten, shellfish or peanut.

🧪 Formulation Notes

Contains soy.

Does not contain dairy, gluten, shellfish or peanut.

Additional Information

Store in a cool, dry place.

L1071-9

Best quality guarantee Advanced formula enteric coated

Made in New Zealand

Product Details

DSLD Entry Date 2017-12-22
Product Type Other Combinations
Form Tablet or Pill
Brand Xtendlife
DSLD ID 82170
Data Updated 2026-04-11

Research Evidence

872 Research Sources
53 Avg Quality Score
309 Meta Analysis
309 Clinical Trial
111 Rct
71 Systematic Review
55 Guideline
4 Cochrane Review
4 Regulatory Source
2 Other
2 Narrative Review
2 Observational
1 Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009
View all evidence for Vitamin D →

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