Read the label before the shipping banner
A free shipping code saves $5 to $10 on one order. A mislabeled bottle costs the full price. Compare the label first, then the cart.
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Federal law sets 0.3% THC on a dry weight basis as the hemp limit under the 2018 Farm Bill. A bottle above that limit is cannabis, and state rules apply to the sale. Check your state before you order.
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Parameters to compare
- Total CBD in mg: 300, 600, 1000, and 3000 mg are common bottle sizes.
- Bottle volume: 30 mL is standard. 1000 mg in 30 mL is 33 mg per mL.
- Serving size on the label, and the dropper mark that matches it.
- Spectrum: isolate, broad spectrum, or full spectrum. Full spectrum holds other cannabinoids plus THC at 0.3% or less.
- THC in mg per bottle, not just a percentage.
- Price per mg: bottle price divided by total mg. $60 for 1000 mg is $0.06 per mg.
- Certificate of analysis (COA): batch number, lab name, test date, potency panel, pesticides, heavy metals, residual solvents, microbials.
- Carrier oil: MCT, hemp seed oil, or olive oil.
Free shipping terms to read
- Minimum order: $50, $75, and $99 are common thresholds.
- Base price. Some sellers raise the bottle price to cover the shipping cost.
- Excluded states and ZIP codes.
- Signature on delivery and age check at the door.
- Carrier terms. USPS, UPS, and FedEx treat hemp and THC shipments under different rules, and state lines matter.
- Subscription terms. Auto-ship can lock the free rate. Find the cancel window before checkout.
Pitfalls
- No COA, or a COA with no batch number that matches the bottle.
- A test date older than 12 months.
- A "THC free" claim on a full spectrum bottle.
- Potency mismatch. A 2017 JAMA study of 84 CBD products found 26% held less CBD than the label stated and 43% held more THC than the label stated.
- Health claims. FDA has not approved CBD as a dietary supplement or food ingredient. FTC has warned sellers about claims with no scientific support.
- Price per mg above $0.10 with no lab data.
- A return policy that excludes opened bottles.
- No age gate at checkout. Cannabis sales run 21 and up. Hemp rules vary by state.
Checkout checklist
- Find the batch number on the product page or bottle photo.
- Open the COA. Match the batch number and confirm the test date.
- Compute mg per mL and price per mg.
- Read the shipping page for threshold, excluded states, and signature terms.
- Confirm the return window and the subscription cancel terms.
- Save the order confirmation and the COA file.