In Stock
21st Century

Slow Release Iron, High Potency, 45 mg , 60 Tablets

4.7 · 3596 reviews
530 ₽

High-Potency Compare VS. Slow FE®† Mineral Supplement Gluten Free Quality Guaranteed Laboratory Tested Trusted Quality For Over 30 Years Slow release Iron is designed to be gentle to your sytem. †This product is not manufactured or distributed by Novartis AG, owner of the registered trademark Slow FE®

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High-Potency Compare VS. Slow FE®† Mineral Supplement Gluten Free Quality Guaranteed Laboratory Tested Trusted Quality For Over 30 Years Slow release Iron is designed to be gentle to your sytem. †This product is not manufactured or distributed by Novartis AG, owner of the registered trademark Slow FE®

Customer reviews

5.0
verified purchase
Slow Release Iron

Needing an extra boost of iron to keep levels up, the slow-release iron is perfect. No "iron" taste since it releases slowly. Tiny pill, easy to swallow. 21st Century brand is my "go-to" choice. I have never had any issues with their products and expire-by-date is clearly stated.

8/23/2026
5.0
verified purchase
Good for sensitive stomachs

Usually iron tablets fall hard on my stomach and cause constipation, but the slow release in this one helps

1/24/2026
5.0
verified purchase

product is very good composition season scent with good texture , effect age benifit as samll use outside with quality ff 3

1/12/2026
5.0
verified purchase
Long lasting irin

My Husband was showing a deficiency in iron at his Dr visit. The Dr recommended a slow release iron supplement for his low iron symptom. It's great because you only take it this small tablet once a day and it releases all day so you get more of the iron on your system. Since taking this tablet once a day his iron level has improved. This is a brand I highly trust to benefit good health.

11/29/2025
5.0
verified purchase
Good - no after-effects

Feel like Iron can give me stomach issues sometimes, this one doesn't affect my stomach negatively at all, and the pills are super small so I am very pleased with it.

11/16/2025
5.0
verified purchase
Great supplement

Great iron supplement for people with iron deficiency. I try getting iron naturally but it’s not always an option. With food and this supplement, I believe I get my daily dose. But I probably wouldn’t just reply on a supplement itself

11/4/2025
5.0
verified purchase
Fine!

These are okay - I thought they were natural iron (ferrin iron) which they aren't, they are tablet form. Still I'll use them and they've been fine.

10/29/2025
5.0
verified purchase

Excellent quality. The 45 mg tablet dose is convenient for me, allowing me to take just one tablet at mornings. good number of tablets in one package.

10/26/2025
4.0
verified purchase
iron iron

quality ingredient size minerals package benefit composition deficiency supplement symptom frequency taste quality ingredient size minerals package benefit composition deficiencyquality ingredient size minerals package benefit composition deficiency supplement symptom frequency tastequality ingredient size minerals package benefit composition deficiency supplement symptom frequency tastequality ingredient size minerals package benefit composition deficiency supplement symptom frequency taste supplement symptom frequency taste

10/16/2025
5.0
verified purchase

My iron level was very low and I started using this to keep me going before my hospital appointment. It didn’t disturb me much in my stomach and the quality is perfect for me. I use it in the night before sleeping and with vitamins c for absorption and it great size mineral package benefits composition deficiency. The supplement is good . Taste symptom frequency

8/25/2025