CBD guides

These guides explain what CBD is, how to use it and what the research shows. They are written by our co-founder and CEO, Robin Roy Krigslund-Hansen. Each one lists its sources and the date it was last reviewed. Start with the basics, or go straight to dosage, safety, skin, sleep or pets.

CBD basics

• What does CBD oil do?What CBD does in the body, and how strong the evidence is for epilepsy, anxiety, sleep and skin.
• CBD vs THCWhy THC causes a high and CBD doesn't, and how full-spectrum and THC-free oils differ.
• The endocannabinoid system explainedCB1 and CB2 receptors, anandamide and 2-AG, and where CBD fits in.
• Full spectrum vs broad spectrum vs isolateWhich types contain THC traces, with real lab profiles to compare.
• What is CBDA?The raw form of CBD in hemp, how heat turns it into CBD, and how RAW oils keep more of it.
• CBD vs CBGWhere each cannabinoid comes from, how much is in hemp, what lab studies show and their EU status.

Using CBD

• How to use CBD oilStep by step: patch test, where to apply, storage and common mistakes.
• CBD oil dosageHow many mg of CBD are in one drop of each of our oils, and how to start low.
• CBD cream and balmHow CBD balm works on the skin, what the trials found, and how to read the ingredient label.

Quality and storage

• How to read a CBD certificate of analysisWhat each part of a lab report means, how to convert % into mg, and a worked example from one of our certificates.
• Hemp oil vs CBD oilWhy hemp seed oil contains almost no CBD, and how to tell the two apart on the label.
• How long does CBD oil last?Shelf life before and after opening, how to store CBD oil, and signs it is past its best.

CBD and the law

• Is CBD legal in Germany?What the 2024 Cannabis Act says about CBD, the 0.3% THC rule, cosmetics, novel food and driving.
• Is CBD legal in France?The 0.30% THC limit, the 2022 Conseil d'État decision on hemp flowers, and driving rules.
• Is CBD legal in Spain?Spanish narcotics law, hemp and cosmetics rules, the food ban, Royal Decree 903/2025 and driving.
• Is CBD legal in Portugal?What Portugal's drugs law lists, hemp licensing, cosmetics, the food ban and driving.

Safety

• CBD side effectsWhat trials show on side effects and liver values, what EFSA and the UK FSA advise, and who should avoid CBD.
• Is CBD addictive?What the WHO and abuse-liability and withdrawal studies found, and why THC is different.
• CBD and medicationHow CBD affects the enzymes that clear medicines, which ones need most care, and what to ask your doctor.
• CBD, drug tests and drivingWhy trace THC, not CBD, can fail a test, plus THC driving rules in 31 European countries and sport rules.

Skin and joints

• CBD for skinThe research on acne, eczema, psoriasis and rosacea, with study sizes, and how to patch-test.
• CBD for jointsWhat topical CBD trials found for arthritis and joint pain, and the research in dogs, cats and horses.

Sleep and stress

• CBD oil and sleepWhat clinical trials show, how CBN compares with CBD and melatonin, and next-day effects.
• CBD for anxiety and stressWhat human trials found, the doses tested, and interactions with SSRIs and benzodiazepines.

Pets

• CBD for dogsLabel directions, study amounts by body weight, side effects, and what to do if a dog eats THC.
• CBD for catsWhat the studies show on safety, liver values and doses, and which signs to watch for.