Yes, CBD (cannabidiol) is legal in the UK under certain conditions. CBD products must meet the following criteria to be legally sold and consumed in the UK:

1. THC Content: The product must contain no more than 1 mg of THC (tetrahydrocannabinol) per container. THC is the psychoactive compound in cannabis, and its presence in CBD products is strictly regulated.
2. Novel Food Regulations: As of January 2021, the Food Standards Agency (FSA) requires all CBD food products to have a valid Novel Food authorization. This means that CBD products intended for consumption must go through a safety assessment and approval process.
3. Medicinal Claims: CBD products cannot make any medicinal claims unless they have been licensed as a medicine by the Medicines and Healthcare products Regulatory Agency (MHRA). Products making health claims without proper authorization are considered illegal.
4. Labelling and Marketing: CBD products must be properly labeled, indicating the CBD content, ingredients, and manufacturer information. Misleading labels and false advertising are prohibited.

CBD products such as oils, capsules, and topical creams are commonly available in the UK, provided they adhere to these regulations. Consumers should look for products from reputable manufacturers that provide third-party lab testing to ensure compliance with legal standards.