Ever wondered why you can't smell the perfume you dabbed on earlier this morning? Maybe it's because you aren't actually wearing perfume. Instead, you likely applied eau de toilette, cologne, or another type of fragrance.

These sprays contain different concentrations of fragrance oil dissolved in solutions of alcohol and water. Scents with a heavier amount of oil are stronger, they're more expensive, and they also last for longer periods of time. Even the most discerning shopper might not know whether to opt for parfum or eu de parfum when perusing bottles of Chanel No. 5 at the fragrance counter—or even realize there's a difference. 

If you'd prefer to smell like a few roses instead of a field of them, it's handy to know the difference between perfume, eau de parfum, eau de toilette, cologne, and eau fraiche when you're out shopping for a new scent. Lifehacker recently ran this handy infographic by Real Men Real Style, which breaks down the strength of each fragrance along with how long it lasts. Use it as a guide to purchase the perfect product for you.

[h/t Lifehacker]