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SIH Medium

Name: SIH Medium
Brand: Formedium

Formedium

£812.83

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SIH medium, developed by Hanh, Friehs and Flaschel (2004), is the next step in the development of synthetic media designed to grow D. discoideum in high cell densities. SIH medium is an improved version of FM medium, as developed by Frank and Kessin (1977). The main difference between SIH and FM is the novel addition of Aspartic acid (1.1 mM) and increased levels of Lysine (8.5 mM) and Tryptophane (1.7 mM). Concentrations of Cysteine, Glutamic acid, Methionine, Phenylalanine, Threonine are slightly increased as well in SIH. The alterations in amino acid formulation of SIH medium resulted in a

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The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as FORMEDIUM LIMITED, number 04351225. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
No majority shareholding traced outside the UK. Companies House.
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Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.

SIH Medium

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