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Best Slime Kits

Updated August 2025
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Pros
Cons
Best of the Best
National Geographic Mega Slime Kit & Putty Lab
National Geographic
Mega Slime Kit & Putty Lab
Fun & Educational

National Geographic is a big name in learning, and this set shows why their name means so much.

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Fun & Educational
Bottom Line

National Geographic is a big name in learning, and this set shows why their name means so much.

Pros

Includes eight varieties of slime and putty, from snotty to glow-in-the-dark and magnetic. Each version has its own tin to keep it clean and ready. A great learning tool that teaches STEM skills. Great for teaching your kids science in a hands-on way.

Cons

Adult supervision is required despite the nontoxic ingredients. Not for younger children.

Squish Original Ultimate Slime Mix'Ins
Squish
Original Ultimate Slime Mix'Ins
Comprehensive Kit

Squishmallow fans will love this pack of 10 ready-made slimes that are themed after the iconic plushies.

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Comprehensive Kit
Bottom Line

Squishmallow fans will love this pack of 10 ready-made slimes that are themed after the iconic plushies.

Pros

This set lets kids experiment with both gooey, glittery slime and soft, fluffy slime. It features eight different mix-ins, including crunchy sequins, soft sprinkles, bumpy beads, squishy mini foam balls, and shredded glitter. Plus, it comes with rubber charms of the most popular mini Squshmallows.

Cons

Some of the slimes are very sticky, and others dry out rather quickly.

Original Stationary Ice Cream Slime Kit
Original Stationary
Ice Cream Slime Kit
Best Themed Kit

This kit comes with everything you need to make themed slime that lasts longer than ice cream on a hot day.

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Best Themed Kit
Bottom Line

This kit comes with everything you need to make themed slime that lasts longer than ice cream on a hot day.

Pros

Comes with different types of slime textures for added sensory play. Each slime can have added scents, such as cherry. Has 31 different pieces, including sprinkles, cherries, and cones, to make the slime look like real ice cream.

Cons

The liquid slime can be a bit too messy for most parents' liking.

Zen Laboratory DIY Slime Kit
Zen Laboratory
DIY Slime Kit
Best Party Pack

This comprehensive slime kit puts your kids in charge of the entire process with everything they need inside the box.

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Best Party Pack
Bottom Line

This comprehensive slime kit puts your kids in charge of the entire process with everything they need inside the box.

Pros

Includes all the utensils, straws, slimes, paper, beads, bags, and balls you need. Promotes creativity by combining all the tools and accessories. Teaches kids basic science and creativity. Includes fun variations like glow-in-the-dark slime.

Cons

Glitter and styrofoam can be difficult to work with.

Elmer's Celebration Slime Kit
Elmer's
Celebration Slime Kit
Best Color Variety

This kit is ideal for youngsters who love to spend hours playing with slime, thanks to its ability to make five exciting varieties.

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Best Color Variety
Bottom Line

This kit is ideal for youngsters who love to spend hours playing with slime, thanks to its ability to make five exciting varieties.

Pros

Makes color-changing, glow-in-the-dark, glitter, colored, and metallic slime. Comes with five activators. Recipes are simple to follow. Non-toxic and easy to wash off surfaces and from fabrics. Made by a recognizable company.

Cons

Some slime didn't turn out as expected. A few reports of missing pieces.

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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. About BestReviews  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. About BestReviews  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.About BestReviews 
How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

First Reviewed
November 27, 2021
52
Models
considered
8
Hours
researched
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Bradley Geiser
Written by Bradley Geiser

Updated August 2025

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