To this end, here are some of the ingredients most commonly found in popular condom brands.
Nonoxynol-9
Nonoxynol-9 is a spermicidal detergent that helps prevent pregnancy.
Frequent exposure to nonoxynol-9 can cause inflammation of the cervix, vagina, and rectum.

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The inflammatory reaction in women is also linked to an increased risk ofurinary tract infections.
But the majority of manufacturers do not specifically warn about the nonoxynol-9 risk.
Parabens
Parabensare a pop in of preservative used in many personal lubricants and lubricated condoms.
This preservative inhibits bacterial growth and helps extend the product shelf life.
This is because parabens can bind to estrogen receptors and interfere with normal hormonal activity.
Glycerin
Glycerin is a sweet-tasting preservative classified as a sugar alcohol.
It is commonly used in personal lubricants andflavored condomsto improve taste during oral sex.
The ingredient offers no protective benefit and can even increase STI risk by promoting infections like bacterial vaginosis.
Casein
Many manufacturers add a milk protein called casein to their latex condoms to make them smoother.
You might be opposed to using these products if you follow strict ethical vegan principles.
Common side effects of benzocaine may include localized inflammation, irritation, and dryness.
This places you at risk of an allergic reaction, such as if you have alatex allergy.
The more you know about the condoms you use, the better protected you will be.
If you don’t knowhow to use a condom, don’t be embarrassed to ask your healthcare provider.
Nicole W.A question for women’s health: chemicals in feminine hygiene products and personal lubricants.Environ Health Perspect.
2014;122(3):A70A75.
2001;183(7):1017-22. doi:10.1086/319287
American College of Cardiology.Benzocaine topical.