Question 1

How do the different magnesium forms (glycinate, taurate, malate) differ?

Accepted Answer

Each form is a magnesium chelate bound to a different amino acid, which affects absorption and timing. Glycinate (with glycine) is gentle on the stomach - best in the evening. Taurate (with taurine) is a well-absorbed everyday form. Malate (with malic acid) is ideal in the morning. In all of them, magnesium contributes to normal functioning of the nervous system and muscles and to a reduction of tiredness and fatigue.

Question 2

Are the products 100% vegan?

Accepted Answer

Yes. All our supplements use plant-based HPMC capsules (zero gelatin) and contain no animal-derived ingredients. That also applies to our vitamin D3, which we source from lichen (not sheep's lanolin).

Question 3

Where do you source ingredients and where do you manufacture?

Accepted Answer

We manufacture in the UK in a GMP-certified facility. Raw materials come from long-standing European and American suppliers with full documentation. Every batch is independently verified in an ISO 17025 accredited laboratory - a certificate for each batch is available online.

Question 4

What's the difference between your magnesium and the cheap oxide forms at the pharmacy?

Accepted Answer

Magnesium oxide (the cheapest form) has roughly 4-10% bioavailability and tends to cause a laxative effect. Our amino acid chelates reach 88-95% bioavailability and are gentle on the stomach. In practice: a single capsule of ours matches up to 10 capsules of oxide.

Question 5

How fast do you ship?

Accepted Answer

Orders placed before 2pm are shipped the same business day. Standard courier delivery takes 1-2 business days. Free shipping over 199 PLN. We ship to Poland and across the European Union.

Question 6

Can I return a product if it doesn't suit me?

Accepted Answer

Yes - as a consumer you have a 14-day right of withdrawal, no reason required (Polish Consumer Rights Act). We refund the payments received for the goods. Note: a supplement supplied in a sealed package cannot be returned once the seal/foil is opened (Art. 38(5) of the Act).

Question 7

Are Best Immune International supplements compliant with EFSA guidelines?

Accepted Answer

Yes - every dose stays within the Tolerable Upper Intake Levels (UL) set by EFSA, while still being clinically relevant (aligned with peer-reviewed research). We never add token amounts for marketing purposes.

Smartsupplementation.

Three products
our customers love

Magnesium Glycinate 500mg

Magnesium Taurate 500mg

Vitamin D3 4000IU + K2 MK7

Every detail matters

Magnesium glycinate

100% Vegan

Clean Label

Clinical dose

ISO + GMP + HACCP

Your bundle in 4 steps

What do you need?

Three forms of magnesium -
three different goals

Six areas, one body

Immunity

12,000+ happy customers
every month

You can also buy us on Allegro and Amazon

Questions our customers ask

−10% off your firstorder