Xtra-Cell PgP by Douglas Laboratories — Ingredients, Evidence & Safety

🟢 90/100

This product looks safe

Contains proprietary blend — exact ingredient amounts not disclosed
78% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Capsule(s) Serving Size

30 Servings

Botanical with Nutrients Product Type

78% Evidence Coverage

Supplement Facts — Evidence Check

Zinc

15 mg (100% DV)

✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)

RDA 11mg This product: 15mg UL 40mg

Selenium

200 mcg (286% DV)

📊 3.6× RDA — above typical dose (UL: 0.4 mg) 📚 172 studies (Tier A: 0, B: 67)

RDA 0.055mg This product: 0.2mg UL 0.4mg

Copper

700 mcg (35% DV)

✅ Within RDA (0.8× RDA of 0.9 mg) 📚 36 studies (Tier A: 0, B: 11)

RDA 0.9mg This product: 0.7mg UL 10mg

Proprietary Blend

274 mg

Green Tea Extract

250 mg

📊 Market median: 260.0mg (249 products) 📚 156 studies (Tier A: 4, B: 61)

This product: 250mg

Tumeric root extract

200 mg

Milk Thistle Fruit Extract

200 mg

📊 Market median: 250.0mg (562 products) 📚 53 studies (Tier A: 0, B: 19)

This product: 200mg

Soy Bean Extract

65 mg

📊 Market median: 60.0mg (94 products) 📚 13 studies (Tier A: 0, B: 7)

This product: 65mg

Flaxseed extract

35 mg

📊 Market median: 1000.0mg (212 products) 📚 12 studies (Tier A: 0, B: 3)

This product: 35mg

Other Ingredients

Cellulose Rice Flour

Label Claims — Verification

❓ All Other

All Other (99% of products) Structure/Function (84% of products) Nutrient (48% of products)

Target Groups

Adult (18 - 50 Years) Dairy Free Sugar Free

Product Information

📋 Directions for Use

Suggested Usage: As a dietary supplement, take 2 capsules per day, preferably with meals or as directed by your healthcare professional.

⚠️ Warnings & Precautions

Warning: Not intended for children under 12. Check with your healthcare professional prior to use if you are pregnant or lactating, have experienced recent surgery or have a cardiovascular condition.

KEEP OUT OF REACH OF CHILDREN.

Tamper resistant package, do not use if outer seal is missing

🧪 Formulation Notes

This product contains NO wheat gluten, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.

Additional Information

For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Formula #99464-60XC

Product Details

UPC / SKU 3 10539 02509 3

DSLD Entry Date 2012-06-25

Product Type Botanical with Nutrients

Form Capsule

Brand Douglas Laboratories

DSLD ID 10409

Data Updated 2026-04-11

Research Evidence

397 Research Sources

55 Avg Quality Score

200 Meta Analysis

68 Rct

58 Systematic Review

53 Clinical Trial

9 Cochrane Review

2 Narrative Review

2 Regulatory Source

1 Observational

1 Other

1 Openfda Safety

A Zinc supplementation for improving pregnancy and infant outcome

Meta Analysis The Cochrane database of systematic reviews 2021

PubMed DOI Cochrane

A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years

Narrative Review The Cochrane database of systematic reviews 2023

PubMed DOI Cochrane

A Oral zinc for treating diarrhoea in children

Meta Analysis The Cochrane database of systematic reviews 2016

PubMed DOI

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2014

PubMed DOI Cochrane

A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials

Meta Analysis BMJ open 2021

PubMed DOI

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2010

PubMed DOI Cochrane

A Zinc supplements for preventing otitis media

Meta Analysis The Cochrane database of systematic reviews 2012

PubMed DOI Cochrane

A Compression bandages or stockings versus no compression for treating venous leg ulcers

Meta Analysis The Cochrane database of systematic reviews 2021

PubMed DOI

A Zinc supplementation for mental and motor development in children