Hand sanitizer recall sparks concern but product still safe and effective when made properly

Hand sanitizers have come under scrutiny lately with more than 50 brands now recalled by Health Canada, leading some to wonder about the safety of products they're using daily.

Colin Furness, an epidemiologist with the University of Toronto who specializes in hand hygiene, saidhand sanitizers are still safe and effectivewhen made and used properly.

While quality-grade ethanol is the ingredient that makes hand sanitizers effective, there are two impurities that experts saidare dangerous substitutions: methanol and ethyl acetate.

"Methanol and ethanol will look similar and behave similarly," Furnesssaid. "The difference is one is quite dangerous."

WATCH | Why hands should be scrubbed for 20 seconds:

How to wash your hands like a surgeon

5 years ago

Duration 4:16

Can washing your hands really slow the spread of COVID-19? That depends on how you clean them.

Health Canada has a growing list of hand sanitizers that have been recalled recently. The most updated version, released Friday, included 12 brands that are either not authorized for sale in Canada or are missing required risk statements.

Earlier this week, the regulator flagged 51 different brands containing certain types of alcohol that are "not acceptable for use in hand sanitizers." People should stop using the products listed.

Most of the products in this round of recall contain ethyl acetate, which may be used in manufacturing products, such as glue or nail polish removers.

Others contain methanol, which makes fuel or antifreeze.

Skin irritation, headaches can happen

Kelly Grindrod, an associate professor at the University of Waterloo's School of Pharmacy, saidethyl acetate and methanol can both cause skin irritations, but methanol can also lead to eye irritation and upper-respiratory irritation when it evaporates and is breathed in after being applied to the skin.

"You inhale it, and it can cause irritation. Headaches can also happen," Grindrod said. "So that's a problem."

There's also concern with the product being absorbed through the skin, though Grindrod said the amount would be minimal, and long-term toxicity is "more of a question mark than a known risk."

These concerns do become more important for health-care workers using the products "well over 100 times per day," rather than an average person working from home and sanitizing their hands once or twice while running errands, Grindrod said.

WATCH | Parts of hands may be easily missed when washing:

The best way to wash your hands

5 years ago

Duration 1:02

Did you know theres a gold standard for handwashing? The Nationals Andrew Chang shows you how its done.

Ingesting methanol can be deadly

Dangers with hand sanitizers containing methanol or ethyl acetate can be severe if they're ingested, and the U.S. Centers for Disease Control and Prevention (CDC) released a report this week warning of serious adverse effects, including deaths, associated with swallowing methanol.

The CDC said 15 cases of methanol poisoning associated with ingesting alcohol-based hand sanitizers were reported in Arizona and New Mexico between May 1 and June 30. Four patients died.

Ethyl acetate is also toxic when ingested, Grindrod said.

Furness saidit's dangerous to have alcohol-based sanitizer, even ones made with ethanol, in reach of unattended children or other vulnerable populations such asinmates and patients in psychiatric facilities.

While there are alcohol-free hand sanitizer alternatives, those can be risky in other ways.

"They're not dangerous, but they're ineffective," Furness said. "And that's a different kind of risk, thinking that your hands are disinfected when they're not."

Furness and Grindrod both saidto look for sanitizer with at least 60 per cent ethanol, and to stay away from homemade solutions that can be unintentionally dilutedand therefore, less effective.

"They may have started off with a 60 per cent ethanolbut as soon as they add in all the other stuff, they may end up with a 30 per cent and have no idea," Grindrod said.

Furnesssaidthat the right balance is tricky to find with homemade solutions, and if the alcohol in them evaporates too quickly, it won't have time to kill germs.

Canada saw an increase in companies producing hand sanitizer early in the pandemicwhen demand was high and supply was low.

Sanitizer for in-between washings

Early recalls resulted when non-approved technical-gradeethanol began surfacing in sanitizers. The latest recall, however, focuses on the non-approved use of methanol and ethyl acetate.

Furness, who has done work for Gojo, the company that makes Purell, suggestedsticking with recognizable brand names when purchasing sanitizer, noting a list of ingredients won't tip you off that a product is unsafe.

Sanitizers containing methanol will also smell and feel the same as ones made with ethanol, he said.

Grindrod saidto make sure the sanitizer has a natural product number (NPN) on its label. However, that's not a fail safe, as most of the recently recalled solutions also had NPNs attached to them.

WATCH | Why back-to-school plans are being scrutinized:

Parents, teachers fight for safer back-to-school plans

4 years ago

Duration 2:01

With the new school year just around the corner, parents and teachers from across the country are raising their concerns to try and get changes made to school safety plans during the pandemic.

"But it does mean that it's trackable," she said.

Health Canada saidalcohol-based hand sanitizer should be used when soap and water arenot available for proper handwashing.

Health Canada also recommends people:

• Follow municipal or regional guidelines on how to dispose of chemicals and other hazardous waste. Products may also be returned toyour local pharmacy for proper disposal.
• Consult your health care professional if you have used these products and have health concerns.
• Use products on itslist ofhand sanitizersthat meetrequirements or have been allowed to be imported under aninterim measure.
• Report any adverse eventsorcomplaints.

Grindrodsaid hand sanitizers are meant for the in-between moments when you're not near a sink, and scrubbing the entire hand with soap and water for the recommended 20 seconds is effective in killing the virus.