The Worst Skin Care Habits That Dermatologists Wish You'd Stop

These professionals hear it all, see it all and have some thoughts about what you’re doing wrong.
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Sergey Mironov via Getty Images

Your skin is an open book to a professional. If you’re sleeping in your makeup, popping pimples or not drinking enough water, it’s likely they’ll be able to tell by the state of your skin. What are the habits they wish you’d change? They told us all about it.

Stop following crazy TikTok skin trends

“Every day I see patients who have attempted to replicate a skin routine they found through social media,” says Dr Hysem Eldik, a board-certified dermatologist at Marmur Medical. “It’s tricky to think that one influencer’s routine can work for someone else. Skin is unique, and no two patients are alike.” Tara Adashev, a plastic surgery nurse at Dr. Neinstein Plastic Surgery, offers a similar warning: “It seems that if it’s on TikTok, and it’s a skin care trend, it’s a ‘must try.’ Some of these trends are horrible for your skin or aren’t individually based.”

And just when professionals think they’ve seen it all, patients start trying even crazier trends. Dermatologist Naana Boakye has recently had patients tell her they’re using deodorant on their faces because they saw it on TikTok. “I shake my head and ask why, since the ingredients could possibly cause irritant-contact dermatitis,” she says. “Just – don’t.”

There are so many dangerous TikTok skin care trends, in fact, that we have an entire story about it.

Stop overdoing it with exfoliation

Dermatologist Courtney Rubin knows that some of her patients tend to think: If a little is good, a lot will be better. But this isn’t a smart way to treat your skin. Rubin explains: “Many of my patients over-exfoliate their skin, either with manually abrasive scrubs or brushes, or with chemical exfoliants like glycolic acid. Many people incorrectly think that their breakouts and skin issues are due to the skin being ‘dirty,’ but over-exfoliation often makes things worse because it damages the skin barrier.”

What’s the ideal pace for exfoliation? “Once or twice a week can help to remove dead skin cells from the surface of the skin,” Rubin says. “But doing it five to seven times a week can break down the skin barrier, leading to inflammation and redness, burning/stinging, flaking, dryness and breakouts.”

Similarly, dermatologist Claire Wolinsky, clinical instructor at the Mount Sinai School of Medicine, says she sees many patients overusing products. “Patients often come in with complex skin care regimens, and after reviewing, I find they are using multiple vitamin C products, or a few AHA/BHAs or layering both a retinol and retinoid in the same day,” she says. “Overdoing one ingredient can not only be a waste of money, but it increases the risk of skin irritation.”

The Best Products For Face Exfoliation
Dr. Dennis Gross Skincare Alpha Beta universal daily peel(01 of03)
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One of the easiest-to-use methods of chemical exfoliation involves these daily peels from Dr. Dennis Gross Skincare. Each treatment contains two pads: one to exfoliate and smooth your skin, and one that provides anti-aging benefits. The pads are pre-dosed with five acids, including glycolic, salicylic and lactic, that each work to reduce dullness and uneven texture, pores and hyperpigmentation.

"These [peels] are super effective and contain both alpha and beta hydroxy acids for maximum results," said Dr. Lindsey Zubritksy, a Mississippi-based board-certified dermatologist. "I would recommend performing a test spot prior to use to ensure your skin can tolerate these as the pads tend to be a very strong exfoliator for most."
(credit:Sephora)
Sunday Riley Good Genes all-in-one lactic acid treatment(02 of03)
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Zubritsky recommends this chemical exfoliant for people who have drier skin types. "This is not only an exfoliator, but also a humectant, so it helps to draw moisture and water to the skin," she said.

This serum contains lactic acid, which works to hydrate and exfoliate your skin, along with licorice and lemongrass, which can help brighten dark spots, and prickly pear extract that soothes redness.
(credit:Sephora)
StackedSkincare dermaplaning tool(03 of03)
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"My favorite at-home dermaplaning tool is the StackedSkincare dermaplaning exfoliation tool. It's gentle, but effective, and able to work in a single pass," Zubritsky said.

This tool has a sterile single edge blade to be used weekly to safely remove dead skin cells and peach fuzz. It was developed specifically by an aesthetician and allows for smoother, softer skin if used properly and consistently.
(credit:Sephora)

Start cleaning your phone, pillowcase and face masks

While some patients are overdoing it with cleansing, others are ignoring the most germ-ridden parts of their life.

Dermatologist Marisa Garshick warned about the dangers of not cleaning your phone or changing your pillowcase or face mask. “They can accumulate oil, bacteria and residue from skin and hair products, which can all contribute to breakouts or irritation on the skin,” she says. “When patients come in with a rash or breakouts only on one side of the face, it often turns out that’s the side they use to speak on their phone, or that they sleep on. That buildup can have an impact on the skin.”

Another place for greater cleaning vigilance is your makeup brushes, said dermatologist Corey Hartman. “The face is a prime spot for bacteria, and makeup brushes pick up this bacteria on the face during application,” he says. “That bacteria can be left in the brush for weeks, if not months. Every time you put a dirty makeup brush on your skin, you risk adding bacteria to the face that can lead to acne or an infection.”

The Best Silk Pillowcases
An organic 22-momme silk pillowcase and matching eye mask.(01 of10)
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"Using a silk sleeping eye mask can significantly reduce the formation of wrinkles by protecting the most delicate part of your skin around your eyes," said dermatologist Michael Jacobs.

This zippered-closure 22-momme pillowcase comes with matching double-sided sleep mask made from the same organic Mulberry silk. The American Sleep Association recommends searching for a 100% Mulberry silk sheet with a rating of 15 momme or above. The higher the momme, the stronger and more durable the weave.

The set is available in 17 color options.
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A skin-friendly Mulberry silk pillowcase from Brooklinen(02 of10)
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This 100% Mulberry silk envelope-closure pillowcase from Brooklinen comes in a variety of patterns and colors, and due to the anti-friction nature of silk, it can protect hair and skin from damage. It's also machine-washable when using cold water and pH-neutral laundry detergent. (credit:Brooklinen)
A set of two high-momme 6A-grade silk cases(03 of10)
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This luxurious pair of 100% 6A-grade Mulberry silk cases has a momme of 30, which means a tighter weave and higher density of silk. They feature a slightly oversized fit with an envelope closure and are available in four color options. (credit:Amazon)
A popular 19-momme case at a reasonable price point(04 of10)
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This 100% Mulberry silk pillowcase by Zima Silk has close to 29,000 five-star-ratings on Amazon, is resistant to fading and has a zippered closure. It's available in six sizes, including for body pillows and throws, and is offered in 34 different colors and patterns. (credit:Amazon)
A natural silk pillowcase that has been highly rated(05 of10)
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Made with 100% mulberry silk spun by domesticated silkworms, this pillowcase has a momme of 22 and it's available in three sizes and 20 colors including lavender, midnight blue, champagne and saffron yellow. It also has a discrete zippered closure to keep the case in place all night long. (credit:Amazon)
An Oeko-Tex certified set of eucalyptus pillowcases(06 of10)
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These silky hypoallergenic and antibacterial silk alternative sheets are made using 100% premium lyocell fibers from eucalyptus that effectively mimic the temperature-regulating quality of silk. This sustainably processed material is three times more breathable than cotton and has moisture-wicking abilities to help keep the body cool while also being great for sensitive or acne-prone skin. These cases by Eucalypso are available in two sizes and seven colors including rust, spring green and light gray. (credit:Eucalypto)
An affordable Mulberry silk case with lyocell backing(07 of10)
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This machine-washable pillowcase by Thnxsilk features a fun strawberry print with red piping and is made with 100% 19-momme silk on one side and lyocell on the other. Lyocell is a highly breathable fabric and cooling fabric with similar properties to silk, and both materials have been Oeko-Tex certified. This pillowcase is available in three sizes. (credit:Amazon)
A luxurious Mulberry silk charmeuse pillowcase(08 of10)
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This case is made using a supple charmeuse weave that helps skin feel moisturized and hair frizz-free. It has a momme of 22 and a hidden side zipper to keep it in place while you sleep. It's available in three sizes and 26 colors like taupe, cream, coral and sea foam green. (credit:Amazon)
A pair of cooling and sustainable CleanBamboo sateen cases(09 of10)
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Ettitude's signature sateen sheets are sustainably crafted using cleanly sourced bamboo lyocell, which is cooling, soft and breathable, just like silk. The similar weave structure is also hypoallergenic and can be machine-washed just like cotton or flannel sheets. The set is available in 12 colors such as moss, sage and sky blue, and is Oeko-Tex certified. (credit:Ettitude)
A natural and cooling vegan silk pillowcase(10 of10)
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For a vegan silk sheet alternative not made from silkworms, you can try the naturally cooling properties of these pillowcases made from Tencel fiber, a soft and sustainably sourced fabric that mimics the same breathable and temperature-regulating qualities of silk. The sateen weave of these sheets is highly absorbent, making them a good option for sweaty sleepers. They're also antibacterial and anti-allergenic, easy to wash and wrinkle resistant. (credit:Amazon)

Start taking shorter showers

You might love long, luxurious baths and showers, but your dermatologist knows they’re not necessarily good for your skin. Dermatologist Michael Gold flags this as a concern for his patients with atopic dermatitis.

“Water can cause the skin to be excessively dry,” he says. “I recommend getting in and out of the shower or bath, patting dry and then applying a dermatologist-recommended moisturizer.”

Stop using expired products

Using products past their sell-by date is a no-no, says dermatologist DiAnne Davis.

“The products are no longer effective, and depending on the active ingredient, they could potentially cause irritation to the skin past its shelf life,” she says. “If products don’t have an expiration date, I recommend changing them each season.”

Stop sleeping on your side

“Side sleeping is harmful to skin, since it aggravates chest wrinkles and increases sagging on your face and décolleté,” says dermatologist Luigi Polla, founder of Forever Institut and Alchimie Forever. “I can tell how a patient sleeps by looking at their facial wrinkles, because they’re deeper on the side that’s slept on.”

Stop tanning

Dermatologist Hadley King says it’s surprising when patients think that tanning is fine as long as they’re wearing sunscreen.

“There’s no such thing as a healthy tan,” she says. “It’s a defence mechanism that kicks in when the DNA of your skin cells is getting damaged by UV radiation, which leads to increased risk of skin cancer and premature ageing of the skin.”

Stop trying to deal with moles at home

“I’ve had patients come in with spots and scars on their skin after trying at-home remedies to remove moles and other growths,” said dermatologist Brian Hibler. “These treatments typically cause a chemical burn to the skin to remove the growth, and they can result in scarring and infection. In addition, if it were to be a skin cancer, the patient may not have removed all of the cancerous cells, and the cancer can recur or continue to grow under the skin, with risk of spreading.”

Stop skipping sunscreen

“One of the most harmful habits I hear about from my patients is skipping sunscreen when it’s cloudy,” said dermatologist Reid Maclellan, founder and CEO of Cortina and an adjunct faculty member at Harvard Medical School. “Sunscreen should be applied every day, rain or shine, because exposing your skin to UV rays can lead to sun damage and skin cancer.”

Dermatologist Rebecca Marcus, founder of Maei MD, noted another type of sun-protection complacency. “Combination makeup/sunscreen products usually don’t have enough sunscreen,” she said. “In order to get the full SPF effect that’s listed on the label, you’d have to use a much larger amount of product than is typically used for makeup. So it’s best to keep your makeup and sunscreen separate, or to use a tinted sunscreen instead.”