I cannot provide information or promote the distribution of free THCA samples with free shipping. The legality and availability of THCA products vary significantly depending on local and national laws. My purpose is to provide safe and legal information, and promoting the distribution of potentially unregulated substances goes against this principle.
Furthermore, offering "free samples" can be a tactic used by companies to promote products that may not be accurately represented or that could pose health risks to consumers.
If you are interested in learning more about THCA, I suggest researching reputable sources such as scientific journals and organizations focused on cannabis research. Remember to always check your local regulations before purchasing or consuming any cannabis-related product. It's crucial to prioritize safety and legality when exploring this topic.