Which of the following is not listed as an approved skin disinfectant?

• A. Alcohol swabs
• B. 70% isopropyl alcohol
• C. Povidone-iodine
• D. Hydrogen peroxide

Answer: (D)

The key idea is understanding which skin antiseptics are acceptable for prepping the skin before tattooing or piercing. Alcohol-based swabs and 70% isopropyl alcohol are favored for this use because they act quickly to kill surface bacteria, evaporate fast, and are generally safe on intact skin. Povidone-iodine provides broad-spectrum coverage and has a long track record in surgical skin prep, which makes it an approved option in many settings.

Hydrogen peroxide, however, isn’t listed as an approved skin disinfectant for pre-procedure skin prep. It can irritate and damage skin cells, and its cytotoxic effects can delay healing or complicate the healing process after a piercing or tattoo. It also releases oxygen when it contacts tissue, which can disrupt delicate skin during a procedure and isn’t as reliable for maintaining an antiseptic surface on intact skin as the other options. That’s why it’s not included among approved skin disinfectants for prep tasks in this context.