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Care guide

BioGoo is unique and different from typical slimes, and therefore has different ways to take care of it. Here's how:

Wash your hands before and after playing

BioGoo can leave a small residue on hands that can be easily washed with soap and water. We also recommend washing hands and playing on a clean surface to prevent bacteria in the slime and extend the lifespan.

Store airtight

Make sure the lid is securely fastened on the container. If BioGoo is left out in the open (exposed to air for long periods of time) it will dry out and become a hard rock instead of goopy slime.

Avoid storing near direct sunlight

Keep BioGoo away from heat and direct sun exposure, which may cause melting or early degradation. Keep indoors away from sunny locations and in cooler rooms.

Slime getting soft

BioGoo breaks down over time as it is made with mostly biodegradable materials. Overall, the expected shelf life can last several months depending on how well it is cared for. If slime becomes sticky, knead it on a clean surface with clean hands for about 60 seconds. It should start getting more elastic and eventually turn back into slime. If it does not regenerate with kneading, you can optionally add a small amount of baking soda to also help revitalize it. However, once slime becomes too melty, it should be discarded in the trash.

 

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BioGoo may cause allergies

Base

BioGoo contains guar gum (legume derivative), borax, and may contain spices, and fragrance oils that can cause allergic reactions or irritation in some individuals.
For complete and current allergen information, please refer to the Allergy Information section on each product page before purchasing or using our slimes.

Add-ins

Charms, pigments, and add-ins may be derived from natural materials that can also cause allergic reactions. Always test for allergies before playing with any slime that includes plant-based or scented additives. You’re always welcome to reach out if you have questions or concerns about a specific batch. The specific allergens for an individual slime will always be listed under "Allergy Information".

To test for allergies

Take a small piece of BioGoo from your purchase and play with it. Wash your hands. If any rash or allergic reaction occurs, discontinue use immediately.

For external, non-edible use only.
Avoid contact with eyes, mouth, and broken skin.

Not a toy. Not suitable for children under 14 years of age. Do not buy if you feel you are at risk. We do not offer refunds for allergic reactions.


By purchasing or using BioGoo, you acknowledge that you have read and understood this information and accept responsibility for proper use.

Contains borax (sodium tetraborate). Although this compound is not currently listed under California Proposition 65 for reproductive or carcinogenic risks, we recommend that pregnant people, children, and individuals with sensitivities avoid extended exposure or skip use altogether.

Last updated: October 2025

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