• The large 3 fl. oz. size gives you maximum volume for longer times between refills.
• All GoToobs are approved for airline carry-on, they're food-safe (FDA), and they're 100% BPA-free and PC-free.
• Bag it for insurance: GoToobs won't leak under normal circumstances; however, accidents can happen. Those luggage handlers can sometimes be brutal, caps don't get tightened fully, etc. We recommend that you always put GoToobs in a sealed "Ziplock" style bag for insurance against unfortunate "Murphy's Law" episodes.
• Recommend Testing First: The following products are compatible with GoToobs in most cases. However, we've heard of problems in some cases when using these products and recommend testing a small amount in a GoToob overnight before general use or travel.

• Personal lubricants (non-silicone based)
• Almond butter
• Liquid sweeteners (especially Stevia)
• Essential oils 
• Sunscreen and tanning lotions
• Skin conditioning oil formulations
• Castille soap

Note: You will know if your fluid is incompatible if it leaks, changes the shape or color of the silicone tube, evaporates from the tube, or dries up shortly after being put in the tube. Most reactions occur overnight; this is why we recommend an overnight trial run with a new product.

Non-Recommended:

While the range of chemicals used in modern cosmetic and personal care products makes comprehensive compatibility testing impossible, we have consistently noticed problems with the following chemical groups/product types and recommend against using them in GoToobs:

• Alcohols (Note: Alcohols may be present in many cosmetic products, including make-up remover, mouth wash, astringent, hair serum, aftershave, and insect repellent)
• Salicylic Acid (most often used in acne treatments)
• Hair serums and treatments (detanglers, relaxers, volumizers, polishers, smoothers, shine serums, etc.) including shampoos and conditioners designed to add shine or luster to hair as well as products with Argan Oil (like Moroccan hair oil)
• Silicone-based lubricants
• DEET-based insect repellents
• Hydrogen Peroxide
• Sterile products (Note: Even though sterile products may be fully compatible with silicone, GoToobs are not sterilized. Therefore, we don't recommend GoToobs for use with fluids where sterilization may be an issue, such as contact lens solution. This includes liquid or semi-liquid prescription medications.)
• Caustic, corrosive, or flammable products (Note: Many household chemicals are sold in specifically designed plastic or glass containers specified by the manufacturer and should never be decanted. GoToobs were designed for personal care or food items you may need while traveling--not bleach, drain cleaner, fire-starters, or hydrochloric acid.)