THORNE

THORNE - Advanced Iron Complex Formerly Ferrasorb - Complete Blood Support Formula - Elemental Iron Folate B and

324+ bought in the past month

$25.00

About this item

  • Well-Absorbed Iron: Provides 36 mg of elemental iron per capsule in a well-absorbed, non-constipating form as iron bisglycinate, with B vitamins and vitamin C to enhance iron’s absorption
  • Iron Plus B Vitamins: A nourishing supplement that combines vitamins B6 (pyridoxal 5'-phosphate), B12 (methylcobalamin), and B9 (folate as L-5-MTHF) with well-absorbed iron bisglycinate
  • Symptoms of Low Iron: Nearly 1 in 3 adults in the U.S. may have low iron levels, which can manifest as weakness, fatigue, shortness of breath, dizziness, drowsiness, irritability, infrequent menstruation, and more
  • 4 Rounds of Testing: Our state-of-the-art laboratories enable us to conduct 4 rounds of testing on every product, from analyzing the purity of raw materials to confirming the shelf life of finished formulas
  • Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)
$25.00

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Product details

BrandTHORNE
FlavorUnflavored
Primary Supplement TypeVitamin C
Unit Count60 Count
Item FormCapsule
Item Weight1.4 Ounces
Item dimensions L x W x H2.09 x 2.09 x 3.72 inches
Product BenefitsBlood Support
Age Range (Description)Adult
Package InformationCanister

Technical specifications

is_discontinued_by_manufacturerNo
product_dimensions2.09 x 2.09 x 3.72 inches; 1.4 ounces
item_model_numberSF750
date_first_availableSeptember 13, 2007
manufacturerThorne Research
best_sellers_rank#1,778 in Health & Household ( See Top 100 in Health & Household ) #9 in Iron Mineral Supplements #183 in Diet & Sports Nutrition

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Customer reviews

4.63,754 ratings

Customers say

Customers find this iron supplement effective at raising ferritin levels and improving energy levels, with many reporting they feel more energized the same day. Customers appreciate its quality ingredients and good absorption, with one mentioning their iron saturation levels increased from 8% to 14%.

★★★★★

Iron deficiency

TomatoOctober 12, 2025

Thorne is the best so far that I have used to help with my iron levels. I don’t get an upset stomach and it’s doesn’t cause me constipation. No taste and quality ingredients. Very effective and helped with my blood levels. Read more

★★★★★

Felt an Energy Boost After Just One Dose

TogueDecember 11, 2025

I took this iron supplement once and actually felt more energized the same day. I’m usually sensitive to iron, but this one didn’t upset my stomach or cause any side effects. The capsule is easy to take and feels very clean and high quality, which is what I expect from Thorne. Of course results vary, but if you’re low in iron or just looking for a well-absorbed iron complex, this one seems to work quickly. I’ll continue using it to see the longer-term benefits, but my first impression was very positive. Read more

★★★★★

Iron that is easy on the stomach

LisaNovember 2, 2025

This is one of the very few iron supplements I have found to be easy on my stomach. The pill size is also not large so it is easy to swallow. I am anemic but it has helped and been effective raise my ferritin level. Again everyone should talk to their doctor but I would recommend to anyone with sensitive stomachs who have a hard time digesting. Read more

★★★★★

Great little pills

AudreyDecember 31, 2025

My midwife recommended these because of my low iron levels. They work great! And even better they don’t cause conspation Read more

★★★★☆

Very easy to swallow

SamanthaDecember 13, 2025

My LLMD suggested I use this iron supplement because I have low iron. The powder capsules are very small so I don't have trouble taking them, however one of the capsules was broken when the bottle arrived so all of the pills are coated in the powder and taste horrible. I'll update the review when I go back for bloodwork and see if it helped. Read more

★★★★★

Great Iron Supplement

Erica OzymyNovember 6, 2025

The media could not be loaded. I am anemic and so I’ve been on iron supplements for a while and I decided to give Thorne a try- best decision ever. I haven’t gone back for labs but I can already tell a difference in my energy levels and my nails are growing strong again. The best part? No constipation and no stomach issues! Read more

★★★★★

Great product, cheaper than prescription

Karla SellersNovember 17, 2025

My nurse practitioner recommended this when Icar-C was causing constipation and other side effects. All the benefits with NONE of the side effects of the prescription medication. Already on my second bottle. No unpleasant burping after taking, no nausea or constipation. And this is as cheap as a 1 month supply with insurance, and lasts 2 months! Will be reordering every 2 months. Read more

★★★★★

Great Quality!

Miriam MansiaDecember 18, 2025

Is it weird that after my first dose I instantly felt better? No GI issues and no weird taste either. Read more

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