Where the 6000 times more than vitamin C comes from, what a meta-analysis of skin studies showed, and why measuring in a test tube says nothing about action in the body.

Citrulline malate pre-workout: what the Perez-Guisado study measured, why malate is not the same as citrulline, and what did NOT improve in Schwedhelm's study.

Monacolin K is identical to lovastatin. How much can be sold in the EU, what warnings are mandatory, and why the statement about 10 mg was revoked.

Fisetin and quercetin as senolytics: how they differ, what has been shown in mice and what in humans, what doses were studied, and what known risks and interactions exist.

What cranberry does to the risk of recurrent urinary tract infections. A meta-analysis from Archives of Internal Medicine, a yearly study by Stothers, and the truth about warfarin.

Sodium butyrate for the intestines: what clinical studies have shown, how sodium salt differs from butyric acid, and why the results of enemas do not translate to capsules.

The Cochrane review found no reliable evidence for chromium in weight loss, and EFSA refused to establish a recommended intake. What remains of the manufacturers' promises.

2- or 4-chamber grinder, metal or plastic and why a kif-catcher. A guide to choosing a grinder plus prices of three models available in the u Bucha store.

Rolling trays in practice: ranking of materials, size selection, features that really matter, and accessories worth having next to the tray.

Regular melatonin or extended-release? What do studies say about dosage, jet lag, and timing of intake, and what melatonin products does the u Bucha store offer?

Hemp, Indian, and ruderalis in one table: growth habit, leaf, flowering, and autoflowering. What genetics says and what legal hemp flower is made from.

Caffeine pouches contain between 40 to 200 mg of caffeine per piece. We check how quickly they work, how much 100 mg of caffeine costs, and where EFSA sets the limit.