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FAQs

Delivery and Payment

Orders within the EU and Switzerland are usually delivered in 1–3 business days.

How much does shipping cost?

  • Pickup point (GLS) – €4,49
  • Home delivery (GLS) – €6,59

For all orders over €70, shipping is completely free!

You can pay for your order using the following payment methods:

  • Credit or debit card
  • PayPal
  • Apple Pay, Google Pay, or Shop Pay
  • Bank transfer / QR code
  • 3 interest-free installments via Klarna
What does Complex Iron help with?

Iron supports the formation of hemoglobin and red blood cells, which carry oxygen to your muscles and organs. It contributes to the reduction of tiredness and fatigue, to the normal function of the immune system, and to normal energy metabolism - benefits that matter most to athletes and to women, who carry a higher risk of iron deficiency.

When should I take Complex Iron?

Take 1 capsule daily on an empty stomach or between meals - fiber and calcium in food can reduce iron absorption. If iron on an empty stomach doesn't sit well with you, take it with a light, low-fiber meal. Vitamin C is already in the formula and supports absorption, so you don't need to add it separately.

Why bisglycinate instead of regular iron?

Iron bisglycinate is a chelated form of iron that absorbs significantly better than the forms commonly used in supplements. It also doesn't irritate the stomach or intestines - a real difference for anyone who's had digestive issues with other iron supplements.

When will I feel the effect?

It depends on where you're starting from. With mild iron deficiency, most people notice a difference in energy and fatigue within 4–6 weeks of consistent use. For an objective check, we recommend testing your iron and ferritin levels before you start and again after 2–3 months of use.

Can I combine Iron with other Complex products?

Yes. One of the best supplements to pair Iron with is our Essentials Multivitamin, which also supports blood formation and energy metabolism.

Couldn't find an answer to your question?

In that case, please visit our general FAQs.

Alternatively, drop us a message in the chat on our "Contact" page (bottom right) and we'll get back to you instantly. Prefer email? Reach us at info@officialcomplex.com and we'll reply within 24 hours.

Disclaimer

Food supplement. Not a substitute for a varied and balanced diet or a healthy lifestyle. Do not exceed the recommended daily dose.

If you are taking medication, have a medical condition, are pregnant or breastfeeding, consult a doctor or pharmacist before use. Not suitable for children or persons under 18 years of age.

Keep out of reach of children. Store in a dry place, below 25 °C, protected from direct sunlight and moisture. The minimum durability date is indicated on the packaging.