Slime Care

Help, my slime is sticky. Is it ruined?
NO. Your order includes a small packet of borax and instructions to dissolve it into 1 cup of warm water. (DO NOT ADD BORAX POWDER DIRECTLY TO SLIME!) Let the solution cool and add it to the slime a few dops at a time. Be careful not to use too much or you will make your slime hard and not stretchy. Too much borax will also make beads, sand, etc. fall out.

My slime has fallout:
Please do not play vigorously with slime with add-ins. Fallout can occur with crunchy textures. Play over a tray or bowl if you experience this. Fallout is also a natural characteristic of slime that is starting to dry out. All slime has a limited shelf life depending on how often it’s played with and how well it’s taken care of.

Slime not stretchy?
You can add a few drops of vegetable glycerin to help soften a harder slime. If it is an opaque slime you can also add lotion to try to soften it up.

Why is my clear slime foggy?
Clear slimes will get foggy over time due to the natural oils on your hands.




If you have any questions or concerns about your order, please email mary@slime-senpai.com Please include your order number.

When will my order ship?
If you place an order before 3pm, most orders will ship the same day.  On bi-monthly restocks (every other Friday) there is a higher volume of orders.  We are such a small shop, but most orders will be delivered to the Post Office and UPS by the following Monday or Tuesday.   You will receive an email with your tracking number when your shipping label is printed.

Is there an age restriction for slime?
Children under 7 should not play with slime without adult supervision. Slime can stick to just about anything (Remember its mostly glue.). Slime can be dissolved using vinegar or lemon juice.

How long will my slime last?
Slime should last for a long time as long as it is taken care of properly. Always keep it in an airtight container and a cool environment. Make sure to wash your hands before and after playing with slime so that it does not get dirty and produce bacteria.

However, slime does not last forever since it is a liquid substance! Slime will lose its moisture and may shrink or melt overtime. Slime that is properly cared for should last for a few months.

Can I cancel my order?
Yes, cancellation must be requested within 1 hour of your order transaction. Please email us immediately. mary@slime-senpai.com

Can I return or exchange my order?
Due to the nature of the product we don't accept return or exchanges.  All products are final sale. We will happily replace products damaged during shipping if you contact us with a photo or video proof within 3 days of delivery.

What does my slime order include?
Besides the slime(s) you ordered your will always receive an extras bag that includes slime care instructions, mineral oil for dry hands and borax powder.  First time orders will also receive a free 2 ounce sample of another slime.

I gave the wrong address what can I do?
Once the order ships we cannot make any changes. Please contact the shipping provider (USPS) for more information. We are not responsible for orders with incorrect address or incomplete address.

My package is lost/stolen
Since your package was already shipped out and USPS officially claimed delivery, we unfortunately no longer have control over the process. As such, please contact your local USPS at 800-522-9085 to help locate your package, supplying the tracking number associated with your order. If after a week, your package is still haven't arrived, you can file a missing mail request on the USPS website and they will help locate the package for you.

What are the ingredients used in your slime?
Our products may contain borax powder; PVA glue; vegetable glycerin; food coloring; air-dry clay; skin-safe fragrance oil; instant snow, (sodium polyacrylate polymer); plastic snow, skin-safe pigment powder; pumice, glitter, silica sand, sand, gravel, various beads. Do not use if you are or may be allergic or sensitive to any of the ingredients listed. Stop using immediately if irritation occurs.  There are no peanut allergens in any of the ingredients.

Do your slimes contain borax?
Yes, all our slimes contain diluted borax activator as it is the most reliable and stable slime activator on the market. Borax is classified as non-carcinogenic and a mild skin irritant, just as excessive use of baking soda would cause irritation. However, if you notice an allergic reaction or abnormality after touching slime, please refrain from any further contact with the slime.

Is slime edible?
No. Please do not ingest slime. Please do not ingest the borax included with your order. We are not responsible for any damages resulting from negligence or improper use of these items.


What do the levels mean?
The levels are mainly a guide for those who are new to slime or who are buying slimes for younger children.  Certain slimes are easier to play with than others.  Clear slimes or slimes with add ins are usually the stickiest to play with.  Think of the slime like its hot and move quickly.  Slimes with clay are usually easier to handle.