This product is described as an arousal serum, which is accurate. It is oil-based, but since it is a tiny container, it wouldn't be very cost-effective to use it as lube. Also, keep in mind it cannot be used with certain materials, like silicone. This serum would work great for people who dislike reapplying, which seems to be a common factor in a lot of these types of products. It's very odd to find one at a decent price that truly lasts longer than 10 minutes. It will work on pretty much any mucous membrane like the lips, mouth, clitoris, vagina, the head of the penis, etc. Just keep in mind that where ever you apply it, there will be a decent tingling sensation for 30 to 45 minutes. It is probably also one of the few that could be used in the shower because even with soap and water, once applied, there isn't any washing away the sensation.

The texture of this serum is very oily, but thin. It puts me in mind of the viscosity of grape seed oil. Be careful when squeezing the little bottle, as it is very easy to squeeze out too much and would not be easy to put it back in the bottle. It slips all over the place, so it would be best to apply it directly to the area and quickly massage it it. It absorbs pretty quickly as well, and leaves a light greasy feeling to the skin.

The 9 Volt serum doesn't taste very good and the tingling sensation is not something people would probably enjoy on their tongues for 30 or more minutes. Even though it's safe to ingest, I would not recommend it. The smell, however, is not at all unpleasant--almost like a cross between Pine-Sol and lemons.

Overall, I was very pleased with the performance of this product. The tingling was a bit too mild for me, but I expected it would be, as this is the medium strength of the three types of serum. I think it's a great place to start, to try and gauge which strength would be best for you. It worked exactly like the packaging described, which was very pleasing.

After the initial application, it took about 3-5 minutes to kick in and thin a moderate tingling/warm sensation would begin and last anywhere from 25-40 minutes. It did leave a light oily feeling on my skin at first, but eventually absorbed into my skin. The oily feeling was gone by the time the sensation wore off.