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🧬 Activate your creativity with the UK’s slime secret weapon!
The All-In-One Slime Activator (300ml) by Slime Labs is a UK-made, non-toxic, and highly concentrated slime activator trusted since 2017. Designed for all slime types, it offers a safe, washable, and versatile solution that stretches your creativity while delivering consistent, smooth slime batches. Perfect for kids, educators, and craft enthusiasts seeking premium quality and proven performance.






| Age Range Description | Child, Adult |
| Asin | B0F7Y5Z7D1 |
| Best Sellers Rank | 435 in Toys & Games (See Top 100 in Toys & Games) 3 in Slime & Putty Toys |
| Brand Name | Slime Labs |
| Colour | Activator Only |
| Container Type | Bottle |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,319) 4.3 out of 5 stars |
| Educational Objective | Creative Thinking, Sensory Skill, Motor Skill |
| Included Components | Glue, Slime Activator |
| Item Dimensions | 15 x 6 x 6 centimetres |
| Item Form | stretchy |
| Item Volume | 300 Millilitres |
| Manufacturer | Slime Labs |
| Manufacturer Part Number | SLA |
| Manufacturer Warranty Description | 1 Year Limited Warranty |
| Material Type | Polyvinyl Alcohol (PVA) |
| Maximum Age Recommendation | 1000.0 |
| Minimum Age Recommendation | 36.0 |
| Model Number | Slime Activator and Slime Glues |
| Number Of Items | 1 |
| Set Name | 300ml Activator |
| Size | 300ml Activator |
| Special Features | Enhances play experience with various slime types |
| Theme | Rainbow |
| Unit Count | 1.0 count |
| Upc | 731628235818 |
User
Good activator
It was a very good activator. It is a big amount so it can last long enough to make a good few slimes. I found with other activators that they either didn’t work or it took the whole bottle to make a slime but with this one a little goes a long way. Overall I thought it was great value as you get a lot and good quality I would recommend this activator. Unlike some others this one isn’t sticky and is more liquid and water like.
User
The best!!
Amazing!!!Was about to give up on making slime with my girls but thought id give one more brand a try and so glad I did! 😍Better than leading brands, fast acting, magic in a bottle!
User
Works, after a fashion
Works pretty well. Used this with some translucent pva glue from the kids stationary shop on the high street and it took a few small measures to get working. We had added a bit of acrylic kids paint and along with it being see through glue that might be why it took a while to work. Needed a lot of stirring. I’m sure contact lens cleaning solution worked better 5 years back when we last made slime. Knocking off a point for the need to re-add and lots of stirring.
User
worth the buy!
Very good activator! works with all glue types and isn’t too concentrated. Doesn’t even smell and the bottle was way bigger than expected!
User
Great
Kid loves it. Super easy to use and don’t need loads of it
User
Worst activator
Absolutely awful! Does not make the slime come together at. All
User
Value for money and good product
I have purchased this item twice now because I feel it's good value for money and last alot longer than those small bottles, works well with the glue I brought so my grandson can make his slime . Also fast delivery
User
Works but needs bicarb to get it going!
TLDR; If it's not working, mix in a little bicarbonate of soda!Like a few people on here, this did not work for us. We tried a little then a lot, nothing but runny PVA.We used ordinary PVA glue and PVA bonding from Screwfix - neither worked.I read on here that someone said mix in some bicarb so I thought I'd try it. The results were dramatic!So, pour in your PVA, mix any colours you want, then sprinkle bicarb over it (we put 1 to 2 tsp of bicarb for a cup of PVA) mix it thoroughly first - then add the activator a few drops at a time and keep mixing and it will turn to slime.If it's too sticky, add a bit more activator. We found pouring a little in a bowl and kneading the slime in your hands. If it's sticking to your fingers dip it in the activator and keep kneading in your hands until it doesn't stick to your fingers but is slimy.Add too much and you'll end up with a solid chunk!
Trustpilot
1 month ago
3 weeks ago