CBD topicals are only effective for the surface of the skin and do not penetrate beyond the epidermis. However, transdermal products can deliver CBD in a way that penetrates through the upper layers of the skin and reaches the bloodstream. Animal studies have demonstrated that CBD administered in the form of a transdermal gel can increase plasma levels of the cannabinoid. CBD lotions are applied directly to the skin and are quickly absorbed by tight muscles.
They interact with cannabinoid receptors, but do not enter the bloodstream. Over-the-counter gels containing CBD are now available, and recent studies with rats suggest that transdermal CBD has beneficial anti-inflammatory effects on the skin. This could potentially provide relief to people suffering from dermatitis (eczema), rosacea, seborrheic dermatitis and psoriasis. CBD can pass through the skin and reach the blood, but it is important to note that it will first be distributed to body fat.
Therefore, for most adults who have extra body fat, a large amount of gel may need to be applied in order to reach an adequate level in the blood to affect brain function. Topical CBD products include creams, lotions, balms, or ointments with CBD or THC that are applied to the skin. Full-spectrum CBD products may lead to a false positive result for THC, but this would require taking around 2000 mg of CBD oil a day. Different types of CBD extracts can be used in lotions, including full-spectrum CBD, broad-spectrum CBD, and isolate.
CBD patches are formulated differently with the purpose of allowing CBD to enter the body through transdermal absorption. When taken orally as oil or capsules, they enter the bloodstream through the digestive system or through the mucous membrane under the tongue. It is possible for CBD oil on skin to reach the bloodstream, but it is important to understand how it works and what type of product is best suited for this purpose. Transdermal products are designed specifically for this purpose and can deliver CBD directly into the bloodstream. However, it is important to note that it will first be distributed to body fat before reaching its target destination.
Additionally, full-spectrum CBD products may lead to a false positive result for THC if taken in large doses.