As someone who's experimented with countless glow-in-the-dark pigments, I was genuinely surprised by the vibrant colors and lasting glow of these epoxy resin dyes. The moment I tested them on a resin coaster project, the colors popped under daylight and maintained a magical glow throughout the night.

The blue and green shades particularly stood out - no weird yellowish tints like other brands I've tried. Just pure, radiant color that transforms ordinary resin art into luminous masterpieces. I left my finished coaster in a dark closet overnight and could still see its glow when checking in the morning!

However, there are some quirks to note. The consistency varies between colors - some bottles arrived slightly thickened and needed vigorous shaking (I added small stainless steel balls to help mix them). About 30% of each bottle's content seems to be wasted on that initial gummy portion that comes out first.

These pigments work best when mixed thoroughly into UV resin before curing. I learned the hard way that applying them directly onto cured resin can create stickiness issues. For best results, mix a few drops into your resin before pouring - this creates stunning translucent effects without compromising the cure.

While marketed for various crafts, they truly shine (pun intended) in resin applications. Attempts to use them as regular paint resulted in never-drying disappointment. But for resin jewelry, decorative pieces, or glow-in-the-dark accents? Absolutely brilliant.

The packaging could be more secure (one of my bottles leaked slightly), but considering the vibrant results and reasonable price point for 10 colors, these have become my go-to for adding that magical glow effect to all my resin projects.