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Description
PL B-12 Intrinsic Factor Progressive LaboratoriesFactors for Support of B 12 Bioavailability Vitamin B12 is a water soluble vitamin needed for normal nerve cell activity, DNA replication, and production of the mood affecting substance SAMe (S adenosyl Lmethionine). Vitamin B12 acts with folic acid and vitamin B6 to control homocysteine levels. Absorption of vitamin B12 is reduced with increasing age. Some research suggests that elderly people may benefit from 10 to 25 mcg per day of vitamin B12. One
Factors for Support of B-12 Bioavailability
Vitamin B12 is a water-soluble vitamin needed for normal nerve cell activity, DNA replication, and production of the mood-affecting substance SAMe (S-adenosyl-Lmethionine). Vitamin B12 acts with folic acid and vitamin B6 to control homocysteine levels.
Absorption of vitamin B12 is reduced with increasing age. Some research suggests that elderly people may benefit from 10 to 25 mcg per day of vitamin B12. One study of elderly people with vitamin B12 deficiency suggested that as much as 500 to 1,000 mcg of vitamin B12 per day might be necessary to achieve optimal vitamin B12 status. Vitamin B12 status was measured in this study using a sensitive laboratory test (the plasma methylmalonic acid concentration).
Supplementation with B-12 Intrinsic Factor:
• Supports nervous system health
• Supports red blood cell production
• Supports energy
• Supports metabolism of fats and carbohydrates
Absorption of vitamin B12 is reduced with increasing age. Some research suggests that elderly people may benefit from 10 to 25 mcg per day of vitamin B12. One study of elderly people with vitamin B12 deficiency suggested that as much as 500 to 1,000 mcg of vitamin B12 per day might be necessary to achieve optimal vitamin B12 status. Vitamin B12 status was measured in this study using a sensitive laboratory test (the plasma methylmalonic acid concentration).
Supplementation with B-12 Intrinsic Factor:
• Supports nervous system health
• Supports red blood cell production
• Supports energy
• Supports metabolism of fats and carbohydrates
Other Ingredients :
gelatin (capsule), rice flour, silica, maltodextrin.
Recommendations :
Take one capsule daily, or more, as directed by your healthcare practitioner.
If you are pregnant, nursing, or taking medication, consult your healthcare practitioner before use. Keep out of reach of children.
Servings:
60
| Ingredient | Amount | Daily Value |
|---|---|---|
| Folate [(6S)-5-methyltetrahydrofolic acid, glucosamine salt] Quatrefolic® | 800 mcg | 200% |
| Vitamin B-12 (as methylcobalamin) | 500 mcg | 8,333% |
| Biotin | 300 mcg | 100% |
| Intrinsic Factor | 20 mg | * |
| * Percent Daily Values (%DV) are based on a 2,000 calorie diet. | ||
| ** Daily Value (DV) not established. |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.9 ★★★★★
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Product Reviews
★★★★★ 5
My Paintings Looked Professionally Framed
Extremely pleased with frames. They were packaged very well and wood was of good quality. Very well priced for quality. Enhances the look of my watercolor paintings. Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2025
★★★★★ 5
Walnut frame
Beautiful color. Sturdy.
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Reviewed in the United States on October 10, 2025
★★★★★ 3
A little Flimsy
Love the texture and look of this frame but it doesn’t hold its shape very well and requires actual screws to secure the backing. One of my screw fasteners was broken off the frame in shipping so maybe that’s why it isn’t as tight as it should be but I was hoping for a more secure fit. A LOT of flex and wobble.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2024
★★★★★ 5
Great shelf for price!
Color: Natural Oak, Number Of Shelves: 1, Size: 35.4 inches, Color: Natural Oak, Number Of Shelves: 1, Size: 35.4 inches
Great shelf for price. VERY easy to install. We put one side of screws of metal bracket in studs to make it sturdy & stable. This was KEY! Follow simple drawing dictions and you can’t go wrong! Was Leary about some bad reviews but we had no issues. Came quickly with no flaws. Looks great and is very light, but is stable when put into bracket correctly. Size is beautiful with the thickness & depth of upscale shelf. If you want a nice shelf that doesn’t break the bank- get it. This one worked well for us!
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Nice little shelf
Color: Black, Number Of Shelves: 1, Size: 47.2 inches, Color: Black, Number Of Shelves: 1, Size: 47.2 inches
Super nice shelf for the price!
Came with everything you need and easy to install.
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Reviewed in the United States on May 10, 2026
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