Compare every Magnesium product across UK retailers on Suppio, ranked by true value - price per serving, not pack size. Prices refreshed daily.
Magnesium is a mineral, which is a inorganic substance the body needs to function. It is sold in different chemical forms to change how the body absorbs it, such as glycinate (bound to an amino acid for gentler digestion), citrate (bound to citric acid), and oxide (a concentrated but less easily absorbed form).
It is used to support various bodily functions, including muscle relaxation and nerve signaling. Many people take it to help reduce muscle cramps or to improve their general sense of wellbeing when they are not getting enough from their diet.
While magnesium is a single mineral, Sleep Support is usually a category of blends containing multiple ingredients.
| Feature | Magnesium | Sleep Support Blends |
|---|---|---|
| Composition | A single mineral | Often a mix of herbs, vitamins, and minerals |
| Primary Goal | General mineral replenishment | Specifically targeting the ability to fall or stay asleep |
| Mechanism | Supports muscle and nerve relaxation | May use sedatives or hormones like melatonin |
To make these supplements, manufacturers start with raw magnesium sources. They combine the magnesium with another substance, like an organic acid or amino acid, through a chemical reaction to create a stable salt. This resulting compound is then dried into a powder, which is either pressed into a hard tablet or filled into a capsule.
This supplement is generally mid-range in price. This is because while the raw magnesium is relatively abundant, the cost varies depending on the complexity of the bonding process used to create high-absorption versions like glycinate.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Related: Single Serving, Electrolytes, Endurance Fuel, Hydration, Liquid / Drops