B-12 Intrinsic Factor - 60 Capsules

by Progressive Labs
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"Helps bring my serum b-12 levels up and helps with energy."  Read all reviews

Quantity per Container: 60 Capsules
Item Number: PL1121
Serving Size: 1 Capsule Servings per Container: 60
Price per Serving:  0.44 Price per Unit*: $0.44 per Capsule
* Price Per Unit may reflect product's price per capsule, tablet, ounce, fluid ounce, etc.
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    Vitamin B12‚ also known as cobalamin‚ is a water-soluble vitamin that plays a major role in various aspects of human physiology. It acts as a cofactor (or “helper molecule”) in the metabolism of fatty acids‚ such as those used for nerve myelination‚ the metabolism of homocysteine (a molecule associated with cardiovascular health)‚ and the synthesis of nucleic acids. Nucleic acids are required for every dividing cell in the body‚ especially red blood cells and the cells of the gastrointestinal tract.

    Since it can’t be created naturally by your body‚ you have to rely on your diet and supplements to ensure adequate levels of vitamin B12. The only natural sources of the vitamin are animal products‚ such as liver‚ eggs‚ meat‚ fish‚ and milk. The elderly are at particularly high risk of developing vitamin B12 deficiency‚ as are people suffering from certain gastrointestinal diseases that inhibit nutrient absorption.

    Vitamin B12 deficiency can deplete your body’s supply of red blood cells‚ affect cardiovascular and neurological health‚ and leave you feeling weak and constipated. That’s why taking a supplement like Progressive Labs’ B-12 Intrinsic Factor may be a good idea for you. In addition to its usefulness in treating or preventing vitamin B12 deficiency‚ this type of supplement may help you sleep better.

    Each capsule of B-12 Intrinsic Factor provides you with a subset of high quality nutrients:


    • Vitamin B12‚ which helps your brain and nervous system function properly

    • Folate‚ which helps your body metabolize B12

    • Pig intestine‚ stomach‚ and pancreas extracts‚ which may help support the absorption of vitamin B12


    The recommended dosage of B-12 Intrinsic Factor by Progressive Labs is one capsule daily‚ unless otherwise directed by your health care provider. Medical counseling and follow-up is advised if you have vitamin B12 deficiency.

    Progressive Labs has been a family owned manufacturer and distributer of nutritional supplements for 40 years. Progressive Labs has supplied over 25‚000 customers with professional grade vitamins‚ herbals‚ and dietary supplements.



    These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.


  • MFG # 400
  • UPC # 351821004006
Official Website: http://www.progressivelabs.com

Serving Size: 1 Capsule

Amount Per Serving / % DV

Folate 800mcg / 200%
[(6S)-5-methyltetrahydrofolic acid‚ glucosamine salt] Quatrefolic®
Vitamin B-12 (As Methylcobalamin) 500mcg / 8333%
Biotin 300mcg / 100%
Intrinsic Factor 20mg / *

*Daily Value not established.

Other Ingredients: Gelatin (capsule)‚ rice flour‚ silica‚ maltodextrin.

This product is made without sugar‚ salt‚ wheat‚ corn‚ yeast or soy derivatives.

Progressive Laboratories manufactured this product in its 3rd party GMP-inspected facility. (Good Manufacturing Practices).

One capsule daily‚ or more‚ as directed by a healthcare professional.

Tamper evident band around cap and seal on bottle. Do not use if either seal is broken or missing.

Keep out of reach of children.

Patients taking prescription medications should consult their physician for possible interactions.

  • Corn Free
  • GMP (Good Manufacturing Practices) Certification
  • Salt Free
  • Soy Free
  • Sugar Free
  • Wheat Free
  • Yeast Free

Ratings and Reviews

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    5.0
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  • Average Rating: 5.0 out of 5 stars
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3 Reviews
  • Verified Buyer

    works well

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    from MI on 6/07/2014
    Helps bring my serum b-12 levels up and helps with energy.
    I would recommend this item to a friend.
  • Verified Buyer

    B-12 Intrinsic factor 60 capsules

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    from Co. Spgs., Co. on 11/15/2012
    I have pernicious anemia and need B-12 Intrinsic Factor to replenish the B12 in my stomach. It seems to be working well and is the best and only supplement I have found that has Intrinsic Factor. it was prescribed to me by a Naturopath. I have been taking B-12 Intrinsic Factor for 4 years and am glad to have it!
    I would recommend this item to a friend.
  • Verified Buyer

    I would recommend to a friend

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    from St Charles IL on 10/16/2011
    This company was very fast with the delivery which I do appreciate and will use them again. Love B-12 Intrinsic Factor by Progressive Labs. 
    I would recommend this item to a friend.

Customer Questions and Answers

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Your question(s) and our corresponding answer(s) will not be confidential and will be posted publically on this specific product page.

Additionally, PureFormulas is unable to directly recommend products in relation to specific health conditions. Please contact your trusted healthcare practitioner for direct product recommendations.

If you have any general questions regarding orders or our policies and programs, please contact our Customer Happiness Team @ 1.800.383.6008

If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use. Your healthcare professional is the best source for guidance before beginning an exercise or nutritional supplement program.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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