• [ ] Seal intact?
• [ ] Label has nicotine warning, ingredients, manufacturer info?
• [ ] Batch code present?
• [ ] QR code leads to official site?
• [ ] Expiration date not passed?
• [ ] Price seems reasonable?

If you can answer yes to all of these, you're probably good. If not, walk away. Your health isn't worth the risk.

Disclaimer: This guide is for educational purposes only and does not constitute legal or medical advice. Always follow local laws and regulations regarding vaping products.