Ashwagandha extract at 2.5% or 5% withanolides: what the certificate means
How to read a withanolide specification for ashwagandha extract, why the HPLC method matters and what to check on the certificate of analysis before you buy.
Read the guide →Specifications
Lion's mane extract: polysaccharides, ratio or both? How to read the specification
Lion's mane extract is sold as a polysaccharide standard or as a ratio extract. How to read each specification, what to ask for and how to compare offers.
Read the guide →Ratio vs standardised extracts: how to compare specifications
A 10:1 extract and a 95% extract describe different things. How to read each specification, compare offers fairly and choose the right one for your formula.
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