After testing Hemway's White Iridescent Glitter Grout Additive in multiple DIY projects, here's my honest take.

The Good: When used CORRECTLY (key point!), this product delivers delicate fairy-dust sparkles that catch light beautifully in bathrooms and backsplashes. I achieved the best results by using 3x the recommended ratio (300g per 1kg grout) - it transformed my plain subway tile shower into something magical.

Reality Check: Several users (including me initially) were disappointed because the standard 100g:1kg ratio creates only subtle shimmer. This isn't a product flaw - it's designed for hint of glitter unless you go heavy-handed. Pro tip: Do a test patch with different ratios first!

Unexpected Win: While marketed for grout, I discovered it works amazingly mixed into clear epoxy for glitter countertops (5g per 10oz epoxy created perfect galaxy effect). The vegan iridescent particles didn't bleed color during curing.

The Frustration: At $12-15 per 100g pack, achieving bold sparkle gets expensive fast. For large projects, premixed glitter grout might be more cost-effective. Also - white glitter disappears in white grout unless you use excessive amounts.

Final Verdict: 4/5 stars when used strategically. Perfect for accent walls/mosaics where you want controlled glam, but budget extra product (and money) for full coverage sparkle.