Frequently asked questions

THCA (tetrahydrocannabinolic acid) is the raw, non-psychoactive form of THC. When heated (through smoking, vaping, or cooking), it converts into THC, which produces psychoactive effects.

THCA is non-psychoactive in its raw form. When decarboxylated (heated), it transforms into THC, which produces the effects commonly associated with cannabis.

Yes! We prioritize transparency and quality. Every THCA By Mail product comes with a third-party lab-tested Certificate of Analysis (COA) to verify potency, purity, and compliance with federal regulations. You can find COAs on our product pages or request one by contacting our support team.

THC-A (tetrahydrocannabinolic acid) is a naturally occurring cannabinoid found in raw and freshly harvested hemp and cannabis plants. Unlike Delta-9 THC — the compound most people associate with the psychoactive “high” — THC-A is non-psychoactive in its natural state. This means consuming raw THC-A flower or products will not produce intoxicating effects.

The key difference comes from a process called decarboxylation. When THC-A is exposed to heat (such as smoking, vaping, or baking), it converts into Delta-9 THC, the active form that delivers euphoric and intoxicating effects. This makes THC-A unique because it is federally legal under the 2018 Farm Bill as long as the hemp product contains less than 0.3% Delta-9 THC by dry weight, but it still has the potential to deliver the same effects as cannabis once heated.

In short:

• THC-A = non-psychoactive in raw form

• Delta-9 THC = psychoactive “high” after heat conversion

• Legal status = THC-A is hemp-derived and federally legal

At THCA By Mail, we specialize in premium hemp-derived THC-A flower, concentrates, edibles, and vapes that are 2018 Farm Bill compliant, lab-tested for purity, and shipped discreetly across the U.S.

At first glance, THC-A flower and Delta-9 THC flower look and smell the same — dense buds, rich terpenes, and premium quality. The difference lies in legal classification:

• THC-A Flower (Hemp-Derived): Contains high levels of THC-A but ≤0.3% Delta-9 THC. Federally legal under the 2018 Farm Bill.

• Delta-9 THC Flower (Marijuana): Contains more than 0.3% Delta-9 THC. Federally illegal, though legal in certain states with medical or adult-use laws.

When heated, THC-A flower delivers effects nearly identical to marijuana flower, but with the advantage of federal legality.

At THCA By Mail, our exotic THC-A flower strains are carefully curated to provide the same premium smoking experience as dispensary cannabis, while remaining Farm Bill compliant.

Yes — THC-A products are federally legal under the 2018 Farm Bill as long as they are hemp-derived and contain ≤0.3% Delta-9 THC. This means you can legally buy THC-A online and have it shipped to your home in most U.S. states.

However, it’s important to know that some states have placed restrictions or bans on hemp-derived cannabinoids like THC-A, Delta-8, and Delta-10. While THCA By Mail ships nationwide, our checkout system automatically blocks orders from states where THC-A is restricted.

This makes ordering safe, simple, and legal. All packages are discreetly shipped, odor-proof, and come with tracking numbers. Customers can shop with confidence knowing they are receiving federally legal, lab-tested THC-A productsdelivered right to their door.

Absolutely! We prioritize your safety and peace of mind. Every product at THCA By Mail undergoes rigorous third-party lab testing. These tests confirm cannabinoid content, Delta-9 THC compliance, and check for contaminants like pesticides, heavy metals, and solvents. You can shop confidently knowing all our flower strains, vapes, edibles, and concentrates are independently tested and federally legal under the 2018 Farm Bill. 🌿🔬