Face cleansing used to be the most boring part of a skin-care regimen. Want bells and whistles? Better to look to the pricey moisturizer that comes in a faceted faux-crystal jar. Need targeted skin-care solutions? Look to potent serums and masks for results.
But with beauty customers more educated than ever, attention has turned toward the humble face cleanser. Korean and Japanese beauty have introduced double- and even triple-cleansing routines. Face wash formulas come in a Willy Wonka variety of forms: foams and balms and gels, mousses, milks and clays. Add concentrated and exotic ingredients, and many of today’s cleansers have little in common with the old-school bar of soap.
To parse all the products and figure out the best solution for you, you’ll need the dermis of an armadillo. Good thing we’ve done some of the work for you.
The Ideal Cleanser
Don’t get distracted by slick marketing campaigns. According to Barbara Sturm, an aesthetic medical doctor in Germany who has a namesake skin-care line, the function of a daily cleanser should be straightforward. It’s “to remove dead skin cells, oil, dirt and other pollutants from the skin, unclog pores, prevent skin conditions such as acne, and prepare the skin for the next step in your skin-care regimen.”
In reality, though, it’s a formulation challenge: A good cleanser must whisk away the bad stuff, yet magically leave your skin microbiome (that is, microorganisms that naturally live on your epidermis) relatively unscathed.
“Cleansing is really a delicate balance between hygiene and barrier damage,” said Amy Gordinier-Regan, the founder of Skinfix. “It truly is the foundation of good skin care. You can do more harm than good by using the wrong cleanser.”
What’s the Deal With pH?
Perhaps you’ve seen it in product listings or on beauty blogs: It’s all about the pH. But how does that affect washing your face?
The idea is that if the cleanser mimics the skin’s naturally acidic pH (5.5), it will be more gentle on your skin’s acid mantle (the protective, slightly acidic layer made up of natural oils, dead skin cells and sweat). The acid mantle is what maintains skin health and staves off bacterial infections, said Dendy Engelman, a dermatologist in Manhattan.
Unfortunately, many traditional cleanser options, like soap and sulfate-based formulas (think: those that lather up easily), can skew high on the pH scale (soap is generally between nine and 10) and strip down the acid mantle.
The problem is that “the definition of ‘clean’ can be subjective,” Dr. Engelman said. “If, after washing, your skin feels tight, dry or inflamed, that means the cleanser or cleansing mechanism was too strong, because, in addition to cleansing, the surfactant has broken down a significant number of bonds in your skin that form your skin barrier.” That “squeaky clean” sensation many of us strive for is, she said, an unhealthy state for our skin to be in.
Oil vs. Water
Despite the huge number of cleansers on the market today, they basically break down into two categories: oil based and water based. “Oil-based cleansers can do a wonderful job of maintaining the skin barrier,” Ms. Gordinier-Regan said. Oils also help break down makeup.
But, she said, “an oil-based cleanser will always leave behind some residue, so you want to make sure the oils in the cleanser are not clogging your pores.”
If your skin is oily or prone to breakouts, Dr. Sturm suggests looking for a water-based gel or foam cleanser. The foaming aspect need not rely on sulfates. There are gentler surfactants available (like decyl glucoside, which is often found in baby shampoos). But even if the product is gentle, she said, “it is important to quickly apply moisturizer to avoid moisture loss through osmosis.”
You’ll want to avoid wipes when possible, though. While better than nothing, they are not a substitute for properly washing your face.
Environmental issues aside (they are one-use items that create waste), wipes “are not going to thoroughly cleanse,” said Hina Choudhary from the SkinCeuticals global scientific communications and medical relations team. “It’s essentially the same concept as using a wet wipe when you can’t find a sink to actually wash your hands. And a wipe will leave ingredients behind that may irritate the skin.”
What’s With Triple Cleansing?
Double and triple cleansing are ideas that sprang from the Korean and Japanese beauty crazes of recent years. The traditional K-beauty scenario involves using an oil-based cleanser to break down makeup. And because some makeup, especially waterproof and long-wear formulas, is oil based, it breaks down best with oil.
Then, because the oil cleanser leaves a residue, which is now mixed with the dirt and makeup, you follow it with “a traditional water-based foaming cleanser, which removes the oils and butters that the balms or oils leave on skin,” said Tiffany Masterson, the founder of Drunk Elephant. Problems pop up when you start washing with two water-based cleansers, which can result in over-cleansing (see more below).
If you have dry skin and want some oil residue, Ms. Masterson offers this hack: Use a water-based cleanser to get the grime off, then use the oil cleanser.
Really, Should You Wash Just Once a Day?
If you subscribe to Ms. Masterson’s theory on skin barrier maintenance, you should not be washing your face morning and night. “If you have a good skin-care routine, you should cleanse at night to get the grime and makeup off,” she said. “Then add your serums and moisturizers, and while you’re sleeping, you’re nourishing your acid mantle. You don’t want to wash that off in the morning.”
Many people who have sensitive skin may simply be overwashing. “The industry is trying to sell as much as possible,” Dr. Sturm said. Over-cleansing, she said, “takes the skin’s lipids away and destroys skin barrier function, which in turn allows bacteria to enter and cause breakouts, redness, irritation, neurodermatitis and decreased natural resistance to UVA and UVB rays.”
Everyone should wash once a day, she said, and twice only if your skin tolerates it well.
To Exfoliate or Not to Exfoliate
Over-cleansing and over-exfoliating go hand in hand. Be wary of cleansers loaded with acids, Ms. Masterson said. “It’s completely gimmicky to add all those acids, because cleansers are a rinse-off product, and you’d want your glycolic acid, for example, to have the chance to penetrate.”
Dr. Sturm takes an even more conservative approach, noting the abuse of exfoliators. You should be exfoliating only one or two times a week no matter the form, she said.
Yet with exfoliating acids (glycolic, lactic, salicylic and more) in so many formulations now, you can easily over-exfoliate without meaning to. Dr. Engelman advises reading the ingredients lists closely.
“If you look at K-beauty or French beauty regimens, you’ll notice that exfoliating is only one step, if any,” she said. “The belief is that if you give your skin everything it needs to perform optimally, you won’t have to help it exfoliate itself. The truth is our skin naturally exfoliates itself through programmed cell turnover.”
The Cleanser Hit List
Klorane Floral Water Eye Makeup Remover ($10)
Elemis Pro-Collagen Cleansing Balm ($64)
Dr. Barbara Sturm Cleanser ($70)
Avène XeraCalm A.D Lipid-Replenishing Cleansing Oil ($31)
SkinCeuticals Gentle Cleanser ($34)
Drunk Elephant Beste No. 9 Jelly Cleanser ($34)
Skinfix Foaming Clay Cleanser ($22)
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