How should I store my Forth™ CBD tincture drops? Customer Service August 08, 2019 15:28 Updated Follow Forth CBD tincture drops should be kept in a dark, cool place. Make sure droppers are securely closed to maintain freshness. Related articles How long do I keep Forth™ CBD tincture drops under my tongue? Can I use Forth™ CBD products while taking prescription medication? Are Forth™ CBD products synthetic or natural? How do I take tincture drops? Comments 0 comments Please sign in to leave a comment.