ON 4 Her is an arousal gel for women that helps jumpstart blood flow in the clitoris, resulting in increased arousal and quicker orgasm. While it is not intended to be used on other parts of the body, it is useful for couples, especially during “quickies” that may not have as much foreplay.

What makes ON standout from its counterparts is that it creates a very powerful warming sensation, and the effects last up to 45 minutes! This oil is not at all recommended for sensitive users, this is hot stuff. It is not intended for other body parts, nor does it create the same sensation if you try to use it on nipples or the penis.

It does not tout being organic, but it is not chemical ridden either (see ingredient list below). Those with allergies should check the label, especially if allergic to cinnamon.

ON is a clear formula with a slightly yellow tint. It is oil-based and silky in texture, although a bit thicker than most oil-based products. If you put a drop on your finger, it won't spread out like a watery substance, but yet it is not as thick as gel, it will run if you tilt your hand. This makes it easy to massage into the clitoris without spilling it all over your hand before you get it anywhere near there. It's recommended that you put the product on your finger and massage in, rather than on the clitoris itself. This is because it is very powerful and you would not want to risk over-applying or accidentally having it drip down into the vagina and creating a “hot hole.”

After massaging on the clitoris, it absorbs quickly in the skin, leaving no sticky or greasy residue whatsoever. This takes only a minute or two, and then any of your favorite lubes can be applied for slickness. Care does need to be taken to prevent staining though due to the oils. While the small amount that sits on top of your skin won't rub onto sheets and stain, large spills might.

There is a noticeable scent that ON has, but it is very mild and natural. Rather than smelling like chemicals or candy, the aroma is created from the actual cinnamon oil that is used to create the warming sensation. It smells like the cinnamon spice in a jar, rather than “air freshener” cinnamon. On the skin it is possible to taste the cinnamon a smidge, but it is hardly detectable. If you did not know in advance it was there, it would be difficult to pick up at all. For that matter, it's hard to tell if it has an actual taste, or if it is just the scent that makes you think you can taste it. Again, unless you have something against cinnamon, I doubt this would be offensive to anyone.

Rather than using menthol or peppermint to create a mixture of cooling and warming sensations, ON relies primarily on a cinnamon extract. The result is a sensation similar to its counterparts, but different. Better. The warming sensation begins taking effect within 1-2 minutes and heats up slowly. Where peppermint oils feel a bit cool and tingly before the warming sensation kicks in, ON starts out lukewarm and gets hotter over the course of nearly 5 minutes. Similar to how Red Hot candies feel in your mouth.

The effects are much longer lasting as well. The heat becomes noticeable within about 30 seconds, very pleasant within 2 minutes and continues to reach full effect in about 5-10 minutes. At full effect, the warming is borderline hot. Definitely more powerful than other types of arousal oils. The warming continues at full strength for 10-20 minutes, and then begins to ebb slowly away, noticeably lasting up to 45 minutes. In fact, if your sessions don’t last this long, you may actually need to use soap and water to wash it away because it remains that noticeable, even after sex.

ON is not a lube, nor should it be used as such. Only 1-2 drops of gel is plenty to create a warming sensation, and reducing the amount of oil does not decrease the amount of sensation. If lube is needed, apply 1-2 minutes after the application of ON.

The box states that the ingredients of ON are a “Proprietary Essential Oil Blend”. Below are the ingredients as found on the label, but the descriptions are provided by me based on commonly known uses, and not provided by the manufacturer.

Sweet Almond Oil: A mild, lightweight oil that is a skin emollient often used in massage.
Cinnamomum Cassia: Otherwise known as cinnamon. Aromatic, flavorful, and creates a warming sensation.
Natural Tocopjerols: Otherwise known as vitamin E, used as an antioxidant topically.
Silica: Preservative that prevents the growth of mold.
Phenoxyethanol: Prevents growth of bacteria and yeast
Ethylhexyglycerin: A weak preservative, usually used as a skin conditioning agent.
Rosemary Oil Extract: Anti-microbial preservative with antioxidants and an aromatic scent.

ON comes in a very small black cardstock box with a hot pink outlined box and the ON logo in mirrored silver. The whole package is so small that it easily blends in with other products if left out, and would actually be hard to pick out unless you were deliberately looking for it.
Inside the box is a 5 ml/ 0.17 fl. oz eye-dropper style bottle helps to ensure that you do not accidentally use too much product. Again the bottle is black with the same hot pink and silver logo on the front. This is very discreet, but cute. It keeps the oil contained well and does not leak or get messy. And happily, it is small enough to be tucked away anywhere, even in a pocket in case you need to use it on the fly.

I love, love, love this warming oil! In one use it knocked my previous favorite out of contention and quickly became my numero uno go-to product. I love the smell: it reminds me of baking, but yet it is not over-powering or attached to the skin. And the warming is simply amazing. I have never used a product that felt quite so warm, or that maintained that sensation for so long. Usually I find with other arousal gels that the sensations peak in 5 minutes and quickly dissipate. With ON, it gets intense and stays that way a good 30 minutes, which is usually plenty of time for me to orgasm. Especially since it helps engorge the clit.

After 30 minutes I do notice the sensations start to fade slowly. If I was the type to orgasm very quickly (like in 10 minutes or less), this would not be fast fading enough and I would have to go wash up with soap and water because it can be overwhelming afterwards (think of how it feels when you try to use a vibe immediately after orgasm). But like I said, for me, the sensations last the perfect amount of time (most of the time) and I can tolerate it post-orgasm and rather enjoy the slow dying heat.

And I was not kidding above when I talked about a hot hole. I was less than careful one time and got some down there. It is at least as hot down there as it is on the clitoris, and it feels less than pleasant. Of course, if that's what you're into, maybe it's not such a bad thing.