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Powder, capsules, extracts, gummies and shots compared by what the label tells you: units, 7-OH, COAs, portions and marketing terms.

Kanna turns up on smartshop shelves as leaf, powder and extracts. Here is what the plant is, why the products differ, and what small studies found.

Damiana (Turnera diffusa) has a famous aphrodisiac reputation. Here is where it comes from, what rodent and lab studies found, and what is still unknown.

Which flower is blue lotus, what do lab analyses find in it, and what does the safety and legal picture look like in the Netherlands and EU?

Probiotic, prebiotic, postbiotic and fermented food explained: the consensus definitions, where evidence exists, how to read a pack and who should ask first.

One capsule: 893 mg of compound, 125 mg of magnesium. How forms differ in magnesium per gram, absorption and gut effects, and what labels only imply.