As you may have figured out by this point, there are three types of personal lubricants on the market. These three types are silicone-based lubricants, water-based lubricants, and oil-based lubricants (sometimes referred to as massage lubricants or even massage oils).
However, what happens when you might want to mix them? There could be a variety of reasons; maybe you have just given your partner a mind-blowing massage with oil-based lubricants, and now you want to go down on them with a water-based flavored lubricant.
Or perhaps you have been using water-based lubricants for manual stimulation because you were assistant by silicone toys, and now you want the long-lasting power of silicone lubricant. In contrast, you use a metal or glass toy to continue the pleasure.
The easy answer is yes, and you can mix different types of lubes as needed. Unlike some chemistry class projects, you do not have to worry about two different lubes, resulting in chemical combustion or creating a noxious gas.
ID Silk Long and Sliquid Silk lubricant are two lubes that are actually pre-made blends of silicone-based and water-based lubricants, put together into a fabulous mix. Clearly, there is no issue with the blending of these two types of lubricants.
So the issues where it can get sticky (pun so intended) is the where and the what that are being lubricated. For example, an oil-based lubricant should never be used in/on the vulva, vagina, or anus, definitely not with latex condoms, dams, gloves, or any toys.
Ergo, if you're giving someone a back massage with massage oil, make sure to wash your hands with soap and warm water before going to roll on a condom (because the oil could cause the latex to break) or sliding your fingers inside someone' vagina, even if you're adding a nice size dollop of water-based lubricants.
Another issue that might cause problems is if you¡ve been penetrating someone with fingers or a penis covered in silicone-based lubricant (or a hybrid silicone-water base lubricant, like mentioned above) and then want to switch to using a silicone sex toy with water-based lube. The leftover silicone-based lubricant could cause the toy to degrade because silicone lubricant and silicone toys are not compatible.
Basically, keep the following in mind. Silicone and water-based lubes are great for anywhere in the body and are compatible with all safer sex supplies and all metal, glass, and porcelain toys. Water-based lubricants are the only ones safer to use with silicone toys.
Oil-based lubes should stay on the outside of the body, away from barriers like condoms, gloves, and dams, and away from toys. When deciding which lubes to mix or to switch from one to another, think about where you might be going and what you'll be using, and choose accordingly.
Of course, you can always wash hands, bodies, and toys in between if need be.