Cannabis Topicals (THC/CBD Transdermal Creams, Patches, and Balms, Skin Absorption, Drug Interaction Potential) — household safety profile
Low riskCannabis topicals — creams, balms, salves, lotions, and transdermal patches infused with THC, CBD, or both — are applied directly to the skin for localized pain, inflammation, and skin condition management.
What is this product?
Cannabis topicals — creams, balms, salves, lotions, and transdermal patches infused with THC, CBD, or both — are applied directly to the skin for localized pain, inflammation, and skin condition management. Standard topicals (creams, balms) penetrate the stratum corneum and underlying dermis but do NOT achieve significant systemic blood levels of cannabinoids, making them functionally non-psychoactive. Transdermal patches, however, are specifically engineered with permeation enhancers (oleic acid, terpenes, ethanol) to drive cannabinoids across the dermal barrier into systemic circulation, producing measurable blood THC levels and potential psychoactive effects. Safety concerns include: variable and unverified cannabinoid content (CBD products frequently contain undisclosed THC), contamination with pesticides and heavy metals concentrated during extraction, skin sensitization from carrier oils and terpene permeation enhancers, and potential drug interactions — CBD inhibits cytochrome P450 enzymes (CYP3A4, CYP2C19) and can alter metabolism of warfarin, clobazam, valproate, and other narrow-therapeutic-index drugs even at topical doses if systemic absorption occurs through transdermal patches.
What's in it
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Active Constituent
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