Thorne Research

Ferrasorb®

$26.00

SIZE: 60 Capsules

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The Promise

Product identity, ingredients, formulation, delivery Chelated iron plus active B vitamins in a vegetable capsule — NSF Certified for Sport®

Ferrasorb® (Thorne Research) supplies Ferrochel® ferrous bisglycinate iron with vitamin C and tissue‑ready B vitamins in a hypromellose capsule.

Identity & Brand

Ferrasorb® by Thorne Research; 60 capsules per bottle; NSF Certified for Sport®.

Principal ingredient & form

Iron as Ferrochel® (ferrous bisglycinate chelate); 36 mg elemental iron per capsule.

Included cofactors

Vitamin C (ascorbic acid), Folate as L‑5‑MTHF (glucosamine salt), Vitamin B12 as methylcobalamin, Vitamin B6 as pyridoxal‑5′‑phosphate.

Delivery & excipients

Vegetable hypromellose (cellulose) capsule; other ingredients: microcrystalline cellulose, leucine, silicon dioxide.

Why It Works

Distinct formulation facts Specific amounts, forms, and combinations that affect absorption and tolerability*

Amounts and active forms are listed per capsule; chelated iron and added vitamin C and active B vitamin forms are included to support absorption and tissue availability.*

01

Iron amount and DV

36 mg elemental iron per capsule — labeled as 200% Daily Value.

02

Chelated iron form

Ferrochel® ferrous bisglycinate chelate is used; described as better absorbed than ferrous sulfate and less likely to cause constipation or GI side effects.*

03

Active B‑vitamin forms

Folate provided as L‑5‑MTHF (400 mcg; 667 mcg DFE, 167% DV), B12 as methylcobalamin (300 mcg, 12,500% DV), B6 as P‑5‑P (5 mg, 294% DV).

04

Vitamin C for iron absorption*

Contains 15 mg vitamin C (ascorbic acid, 17% DV) included to enhance iron absorption from the gut.*

Reviews

Customer Reviews

Your Journey

Use, dosing, and safety guidance Label directions, format, and explicit warnings/interactions from the product label

Follow labeled dosing and read contraindications and interaction notes before use.

Serving & dosing

Suggested use

Take 1 capsule one to three times daily or as recommended by your health‑care practitioner. Serving size: one capsule. Servings per container: 60.

Format & packaging

Vegetable Hypromellose Capsule

Vegetable (hypromellose) capsule; other ingredients listed on label.

Warnings — children & allergies

Serious safety warning

Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six; keep out of reach of children. Contraindicated with a history of hypersensitivity to any ingredients.

Pregnancy & drug interaction notes

Pregnancy and methotrexate guidance

If pregnant, consult your health‑care practitioner before use. 5‑MTHF supplementation is not recommended concurrently with methotrexate cancer therapy; 5‑MTHF has not been shown to interfere with methotrexate used for psoriasis or rheumatoid arthritis.

Product education

Ferrasorb®: A Complete Iron Supplement for Energy and Red Blood Cell Formation

Thorne’s Ferrasorb® is a comprehensive iron supplement designed for optimal absorption and tolerability. This formula combines a well-absorbed, non-constipating form of iron with the essential nutrients your body needs to effectively build red blood cells. It provides a complete solution for individuals seeking to support healthy iron levels, combat fatigue, and promote overall energy and vitality. It is an ideal choice for women of childbearing age, athletes, and anyone with an increased need for iron.*

How It Works: More Than Just Iron

Simply taking iron isn’t always enough. Ferrasorb® works by providing iron along with its most important nutrient cofactors to ensure it is properly absorbed and utilized by the body.*

A Gentle, Well-Absorbed Form of Iron
This formula features Ferrochel®, a chelated form of iron bisglycinate. This form is significantly better absorbed than other forms of iron, like ferrous sulfate. Because it is so well-absorbed, it is much less likely to cause the constipation, nausea, and other gastrointestinal side effects commonly associated with iron supplementation.*

Essential Cofactors for Red Blood Cells
For the body to produce healthy red blood cells and hemoglobin, it needs more than just iron. Therefore, Ferrasorb® includes the active, tissue-ready forms of key B vitamins, including Folate (5-MTHF), Vitamin B12 (methylcobalamin), and Vitamin B6 (P-5-P). In addition, Vitamin C is included to further enhance the absorption of iron from the gut, making this a truly complete and synergistic formula.*

  • Provides a well-absorbed, non-constipating form of iron*
  • Supports energy production and helps relieve fatigue due to iron deficiency*
  • Includes essential B vitamins and Vitamin C to enhance absorption and utilization*
  • Promotes the healthy formation of red blood cells and hemoglobin*
  • NSF Certified for Sport®, trusted for purity and safety

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Serving Size: One Capsule
Servings Per Container: 60
Ingredient Amount %DV
Vitamin C (as Ascorbic Acid) 15 mg 17%
Vitamin B6 (as Pyridoxal 5'-Phosphate) 5 mg 294%
Folate (400 mcg as L-5-Methyltetrahydrofolate) from L-5-Methyltetrahydrofolic Acid, Glucosamine Salt† 667 mcg DFE 167%
Vitamin B12 (as Methylcobalamin) 300 mcg 12,500%
Iron (as Ferrochel® Ferrous Bisglycinate Chelate)†† 36 mg 200%
Other ingredients: Hypromellose (derived from cellulose) capsule, Microcrystalline Cellulose, Leucine, Silicon Dioxide.
*Daily Value (DV) not established.
WARNING Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. Keep this product out of reach of children. In case of accidental overdose, call a doctor or a poison control center immediately.
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
PREGNANCY If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS 5-methyltetrahydrofolate (5-MTHF) supplementation is not recommended concurrently with methotrexate cancer therapy, as it can interfere with methotrexate's anti-neoplastic activity; however, 5-MTHF has not been shown to interfere with the anti-inflammatory activity of methotrexate. An individual taking methotrexate for psoriasis or rheumatoid arthritis can safely take a supplement containing folate.