Progressive Labs B-12 Intrinsic Factor Supplement, 60 Count

Works better than any of the other intrinsic factor supplements I’ve tried. I won’t use anything else now. Take at the end of a meal. Greatly aided my digestion and elimination. Excellent probiotic.

Intrinsic factor makes all the difference. We’ve tried B12 before but this product made a visible difference in B12 levels in next blood tests. So thankful.

I don't impress easily. I have been struggling for decades with 5 severe Autoimmune System disorders that have only started being correctly diagnosed within the last 4 years. One of the most challenging ongoing disorders has been neural muscular disorder. The neurologist I have worked with for several years, identified that a big part of the problem was insufficient B12. Yes, I was tested as needing methylated. However, nothing we tried improved the situation except in a minor way. Plus I reacted very negatively to shots and pills. I came across a REVIEW on a vegan spray product that mentioned INTRINSIC Factor and asking that it be included in the product since it is required for absorption. I researched and immediately ordered this product. I received this 6 DAYS ago. I took 2 capsules immediately to jumpstart and 1 cap every morning since. By the 2nd morning my little dogs were able to get me up 30 minutes earlier. By the 4th morning my old shingles pain started diminishing. 5th morning slight improvements in coordination (less staggering and less over-rotation torso movements). This morning - up an hour earlier and movement is definitely requiring less effort and focus. By the way the original B12 blood levels were within the "lower normal at 250". My neurologist said those ranges were barely surviving range and for proper function the minimum should be at least 400.I gave a 4 star because it has been a very short time. I also want to see blood levels in a couple of months.

It is very difficult to find a product that contains Intrinsic Factor. Often, when dealing with MTHFR gene variants, not only is a pure source of Methylated B12 and Folic Acid necessary, but also Intrinsic Factor. This product has all 3. I am VERY pleased with this product

Great product. Works perfectly. Company is terrible about shipping the product on time.

Hi, I like the Intrinsic factor supplement and hope my body will always be able to use it. It has Vit B12 methylcobalamin and intrinsic factor. Celiac may wreck the gut lining so intrinsic factor and HCl is not made in stomach cells. Intrinsic factor helps carry Vit B12 into intestines. This supplement helps me. I also take Natures' Plus- Source of life multiple, fish oil, Mg citrate, HCl and Now brand- Super enzymes with meals, dairy free probiotic at night and eat no gluten/dairy/soy/sugar/GMO. Gluten is wheat/barley/rye..oats. GMO maybe corn/soy/canola oil and more. Low Vit B12 maybe due to Celiac. Tests may not work to diagnose Celiac. Vit B12 is very important for the brain/nerves/hemoglobin/prevent dementia/keep oxygen high in the body/brain/helps sleep and much more. MTHF folate along with it may also help.

If you are lacking intrinsic factor, ordinary vitamin B12 doesn’t work, which was my case. After taking this for 3 days I felt a world of difference!! My leg and foot pain was gone and I could walk without limping! It makes a huge difference for me! I highly recommend it!!!

No more needles for B!@ my levels are up and sustained