Entries by Stephan

Cannabis & testosterone: effect on male fertility

The most important thing: Daily cannabis use is a problem when trying to conceive: Gundersen 2015 shows up to 52% lower sperm concentration. All effects are reversible after 3 months of abstinence – spermatogenesis takes 74 days. At a glance: Weekly consumption: 28% lower sperm concentration (Gundersen 2015, n=1215) All sperm effects completely reversible after […]

Cannabis quality: laboratory tests, pesticides & contamination

The most important thing: 15-25% of black market cannabis contains pesticides above EU limits. Medical pharmacy cannabis must meet GMP standards and comes with a Certificate of Analysis. Mold on cannabis can be life-threatening for the immunocompromised. At a glance: 15-25% of black market cannabis contains pesticides above EU food limits Pharmacy cannabis: GMP obligation […]

Retinol: effect, application and the best products for radiant skin

Retinol is the best-studied anti-ageing ingredient of all – and yet it makes most people nervous. Rightly so? Not if you know how to use it. Used correctly, retinol is unbeatable against wrinkles, pigmentation spots and a dull complexion – and a perfect ingredient in the Glass Skin routine. What is retinol and how does […]

Home cannabis cultivation: rules according to CanG

The most important thing: Since the CanG (April 1, 2024), 3 cannabis plants are legal at home. 50 g possession allowed in the home. 25 g may be passed on free of charge. Sale, commercial cultivation and transfer to minors remain criminal offenses. At a glance: Legal since CanG (April 1, 2024): 3 plants at […]

Cannabis microdosing: low doses of THC & CBD

The most important thing: THC has a biphasic effect: 1-5 mg can have an anxiolytic and focusing effect. 20-25 mg+ can trigger paranoia and anxiety. Anyone using cannabis for medicinal purposes needs a minimum dose – not a maximum. At a glance: THC has a biphasic effect: 1-5 mg anxiolytic and focusing, 20+ mg can […]

CBN (cannabinol): Sleep sedative & effect explained

The most important thing: CBN is formed when THC oxidizes – through UV light, oxygen and heat over months. Old cannabis contains more CBN. CBN is weakly psychoactive and has a sedative effect mainly in combination with THC – not alone. At a glance: CBN is produced exclusively by oxidation of THC – UV light, […]

Cannabis for ADHD: THC, CBD & concentration – Studies

Most important: 20-30% of all adults with ADHD self-medicate with cannabis. Pharmacologically plausible: ADHD is associated with anandamide deficiency, CB1 directly modulates dopamine. Survey data shows 55% report better concentration. At a glance: 20-30% of all adults with ADHD self-medicate with cannabis Mechanism: ADHD is associated with anandamide deficiency – CB1 directly modulates dopamine For […]

Luxury watches for men: an overview of the best brands and models

Luxury watches for men are more than just timepieces – they are masterpieces of craftsmanship, status symbols and in many cases better investments than gold. Anyone investing in a luxury watch needs an overview of brands, references and price ranges. There is a special Rolex Submariner buying guide for the Submariner. What is a luxury […]

CBG (cannabigerol): effect, studies & application

The most important thing: CBG is the biosynthesis precursor of all cannabinoids – CBGA produces THC, CBD and CBC. Only traces are present in mature plants. CBG acts via CB2, α2-adrenoceptors (glaucoma) and has a direct antibacterial effect against MRSA. At a glance: CBG is the biosynthetic precursor of all cannabinoids – CBGA produces THC, […]

Gua-Sha & Jade Roller: Application, Effect and Which Stone Really Helps

Gua Sha and Jade Roller are hardly imaginable without modern skincare routines. But what is really behind these facial massage tools from Traditional Chinese Medicine? This guide explains origin, technique, materials and effects — and shows which tool is better suited for which skin type. With step-by-step instructions, comparison table and product recommendations. What is […]

Cannabis decarboxylation: activating THCA to THC

The most important thing: raw cannabis flowers do not get you high. THCA (the natural form) hardly binds to CB1 receptors. Only heat (120°C, 35 min) produces active THC through decarboxylation. This happens automatically when smoking. At a glance: Raw cannabis does not get you high – THCA hardly binds to CB1 receptors Optimal decarboxylation: […]