Colorado Biolabs Proferrin ES

44 Reviews
Colorado Biolabs Proferrin ES is a dietary supplement of animal-sourced heme iron (as Proferrin ES heme iron polypeptide), which is a more absorbent form of iron to support healthy mineral levels. The convenient tablets can be taken to support daily iron intake.Read More >

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Customer Reviews


44 Reviews

  • 5 stars
  • (41)
  • 4 stars
  • (3)
  • 3 stars
  • (0)
  • 2 stars
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  • 1 star
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So worth the money

I suffer from low iron and my Ferritin levels went from an 8 to an 11 in less than 8 weeks. I did also change my diet to eating more red meat and taking black strap molasses but I will never be without Proferrin again.

Proferrin ES

Proferrin ES is a great product with no side effects. It is pricier than other iron supplements, but well worth.

Great Product

Proferrin ES is a great product, fast shipping with no hassle...thank you!


I am an Ultra Runner and have found nothing like it!

Proferrin ES

It's just the best. I will take it for the rest of my life.


This is TRULY an amazing Iron supplement! It is easy to take and works well, no side effects like with other brands! Very easy on the stomach! :)

good stuff!

Proferrin ES is a great way to take necessary iron! but its sooooo expoensive!

Let's Iron This Out

This site is right on! They ship your product promptly and it arrives in tact and just the way you would expect. Proferrin ES is great.

Worked for me!

I took many different types of iron and I was not happy with any of them. I finally found this site and ordered the Proferrin and I felt so much better quickly! I will be purchasing it for the rest of my life! It is the only Iron that worked for me.

Best Iron Supplement

No stomach upset or constipation. Proferrin Works great!

Great Supplement

Proferrin ES Iron does not cause me any stomach distress and I saw quick results.

Proferrin ES

The Proferrin ES is great and so far has been well accepted.



Proferrin Iron Supplements

The BEST! I have had great success taking these supplements and will continue to do so.

proferrin es

Proferrin ES is very easy on my system...So far I'm happy with Proferrin ES AND with Colorado Biolabs. THANK YOU for the free shipping.

Good product but why so expensive?

It certainly has worked for me. However, the price differential is extreme so if other forms work for you, why spend more? Subtracting one star for value.

proferrin es


Thank Goodness

This is our 3rd order. The tablets are worth their weight in gold.


Ordered processed quickly and efficiently.

Just What I Need

Proferrin ES is the iron my specialist has recommended. It's nice to get a 90-day supply, and it's cheaper than getting it through my local pharmacy.


Proferrin ES is the best form of iron on the market, imo. This product really helped.


the ordering is fast and easy.

re: Proferrin ES 90 tablets

I have purchased Proferrin ES tablets for my mother who is in her 98th year. She is able to tolerate this form of iron without side effects.

I like this iron, and its price

Will definitely buy from the company again. This iron is definitely stronger than my old iron. A go to.



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