Formula OSG Bio by Genestra Brands — Ingredients, Evidence & Safety

🟢 100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
44% of ingredients have research evidence

A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size

60 Servings

Multi-Vitamin and Mineral (MVM) Product Type

44% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin A

500 IU (10% DV)

Vitamin C

1000 mg (1667% DV)

Vitamin D

500 IU (125% DV)

✅ Within RDA (0.8× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)

RDA 0.015mg This product: 0.0125mg UL 0.1mg

Vitamin K1

50 mcg (63% DV)

✅ Within RDA (0.4× RDA of 0.12 mg) 📚 273 studies (Tier A: 9, B: 175)

RDA 0.12mg This product: 0.05mg

Calcium

135 mg (14% DV)

Magnesium

37.5 mg (9% DV)

📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)

This product: 37.5mg

Manganese

4.5 mg (225% DV)

✅ 2.0× RDA — within safe limits 📚 8 studies — no high-quality reviews

RDA 2.3mg This product: 4.5mg UL 11mg

Vanadium

7.5 mcg

📊 Market median: 0.5mg (6 products) 📚 1 studies (Tier A: 0, B: 1)

This product: 0.0075mg UL 1.8mg

Boron

250 mcg

📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews

This product: 0.25mg UL 20mg

Other Ingredients

Hypromellose Silica Magnesium Stearate

Label Claims — Verification

❓ Nutrient

❓ All Other

All Other (99% of products) Structure/Function (76% of products) Nutrient (58% of products)

Target Groups

Vegetarian Adult (18 - 50 Years)

Product Information

📋 Directions for Use

Recommended Adult Dose: Take two capsules two times daily with meals, a few hours before or after taking other medications, or as recommended by your healthcare practitioner.

⚠️ Warnings & Precautions

Risk Information: If you are pregnant or breastfeeding, consult your healthcare practitioner prior to use. If you are taking blood thinners or if you have a liver disorder, consult your healthcare practitioner prior to use.

Quality Assurance: Safety-sealed for your protection and for product freshness. Do not use if outer seal is missing or broken.

🧪 Formulation Notes

Guaranteed to contain no added wheat, yeast, gluten, sodium, artificial coloring or flavoring, antimicrobial preservatives or dairy products.

Ideal for vegetarians.

The capsules are made from 100% pure vegetable sources, free of preservatives and additives.

Calcium-Magnesium formula with buffered Vitamin C

Additional Information

Store in a cool, dry place.

265

Seroyal

Product Details

UPC / SKU 883196 11031

DSLD Entry Date 2016-01-25

Product Type Multi-Vitamin and Mineral (MVM)

Form Capsule

Brand Genestra Brands

DSLD ID 55875

Data Updated 2026-04-11

Research Evidence

337 Research Sources

54 Avg Quality Score

161 Meta Analysis

68 Systematic Review

51 Rct

48 Clinical Trial

2 Other

2 Regulatory Source

1 Narrative Review

1 Cochrane Review

1 Guideline

1 Openfda Safety

A Vitamin A supplementation for preventing morbidity and mortality in children from six months to five years of age

Meta Analysis The Cochrane database of systematic reviews 2017

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants six months of age or less

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplementation for reducing the risk of mother-to-child transmission of HIV infection

Meta Analysis The Cochrane database of systematic reviews 2011

PubMed DOI Cochrane

A Vitamin A supplements for preventing mortality, illness, and blindness in children aged under 5: systematic review and meta-analysis

Meta Analysis BMJ (Clinical research ed.) 2011

PubMed DOI

A Fortification of staple foods with vitamin A for vitamin A deficiency

Systematic Review The Cochrane database of systematic reviews 2019

PubMed DOI Cochrane

A Vitamin A supplementation for the prevention of morbidity and mortality in infants one to six months of age

Narrative Review The Cochrane database of systematic reviews 2016

PubMed DOI Cochrane

A Vitamin A and fish oils for preventing the progression of retinitis pigmentosa

Meta Analysis The Cochrane database of systematic reviews 2020

PubMed DOI

A Exercise training-induced changes in exerkine concentrations may be relevant to the metabolic control of type 2 diabetes mellitus patients: A systematic review and meta-analysis of randomized controlled trials

Meta Analysis Journal of sport and health science 2023

PubMed DOI

A Food fortification with multiple micronutrients: impact on health outcomes in general population

Meta Analysis The Cochrane database of systematic reviews 2019

PubMed DOI

A Oral vitamin A supplements to prevent acute upper respiratory tract infections in children up to seven years of age

Meta Analysis The Cochrane database of systematic reviews 2024

PubMed DOI

View all evidence for Vitamin A →