Approved by Radar affordable blood testing

[at(almost)ANYcost]

Not sure of the price but,some of my USA friends have used them before.
Another cheap option although not as good as blood is a simple cheap
saliva test.

Is there a baseline known measure of error involved with saliva testing? For example, a known variance of +/- 10% on TSH, or +/- on FREE TEST etc? Thanks Alin! This would serve a great utility for those wishing to stay up to date on their levels between full blood panels.