Do I need a COA for every batch I buy?
Yes, if you want to be safe. Nicotine strengths can vary slightly between batches, and a COA confirms what's actually in the product. It also protects you if a customer complains about harshness—you can prove the product was labeled correctly.
How do I check if a batch is authentic?
Look for a batch number on the packaging and match it to the COA. Some brands have QR codes that link to verification. If you're unsure, use a vape authenticity checker tool—it can help you spot fakes.
Should I worry about nicotine strength regulations?
In many regions, there are limits on nicotine strength (e.g., 20 mg/mL in the EU). Make sure the products you buy comply with local laws. Your supplier should be able to tell you the legal status.
What if a customer says the vape is too strong?
That can happen even with correct labeling. Some people are sensitive to nicotine. But if you get repeated complaints, check the COA to see if the actual strength matches the label. If it doesn't, you might have a bad batch.
Why does salt nicotine feel smoother than freebase?
Salt nicotine is formulated to be less harsh at higher strengths, so it's popular in disposables. Freebase gives a stronger throat hit. Know which your customers prefer—it affects how they perceive the product.
