Are You Overdoing Your Skincare? How to Care for Your Skin Barrier and Still Exfoliate
If your skin has suddenly turned dry, red, flaky, or starts stinging the moment you apply anything, you are not imagining it, and you are not alone. On this week's episode of Facially Conscious, board-certified dermatologist Dr. Vicki Rapaport, esthetician Trina Renea, and consumer advocate Julie Falls took on one of the most confusing conversations in skincare right now: the skin barrier, exfoliation, and whether you really have to choose between them.
Short answer: you don't. But you do have to stop overdoing it.
Barrier Care and Exfoliation: Not a Choice
Barrier creams are everywhere, and so is the advice to quit exfoliating altogether. Trina opened the episode by rejecting that framing. "People say barrier repair versus exfoliation. I don't think it's a versus," she said. "Sometimes you can exfoliate and do too much, and then disrupt your barrier. Then you need barrier repair."
Later in the episode, she sharpened the idea: it isn't barrier repair or exfoliation, it's barrier care and exfoliation. They do two different jobs. Barrier care protects the skin. Exfoliation removes dead skin cells so your skin renews faster and looks smoother. "You can do both at the same time."
What Is the Skin Barrier?
Dr. Vicki explained that your skin barrier is the stratum corneum, the topmost layer of the epidermis. It is made of two things: corneocytes (skin cells) and the lipid layer that holds them together. That lipid layer is made of cholesterol, fatty acids, and ceramides. "That's the cement that kind of glues your skin cells together," she said. "When that is disrupted, your skin barrier is disrupted."
Trina uses a simpler picture with her clients: a brick wall. The skin cells are the bricks, and the lipids are the mortar. A healthy wall keeps water in your skin so it doesn't evaporate, and keeps irritants and bacteria out. When the mortar breaks down, whether from over-exfoliating, harsh weather, or the wrong products, the wall stops doing its job. That is a compromised barrier.
Signs of a Damaged Skin Barrier
According to Dr. Vicki, a disrupted barrier can show up as:
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Redness
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Itching
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Flaking and peeling
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Dryness and rough texture
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Discoloration
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Burning
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Acne and breakouts
"A disrupted skin barrier can cause literally almost everything bad that can happen to your skin," she said.
Trina's most reliable warning sign is stinging. When a damaged barrier loses water, it becomes dehydrated and irritated, and even plain water or a gentle cleanser starts to sting. "If your skin is stinging, that means you have a disrupted barrier," she said. "You never want to get to the point where your skin is stinging."
What Damages the Skin Barrier?
Some causes are internal. Dr. Vicki pointed to genetic conditions such as eczema and psoriasis, and to people who are simply prone to very dry skin. Rosacea, she noted, is more of an inflammatory condition than a barrier problem, but stripping and irritating rosacea-prone skin "is going to come roaring back."
Most causes, though, are external:
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Over-exfoliating, which Dr. Vicki called the number one cause of a damaged skin barrier
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Weather changes, including the shift from outdoor air to indoor heating
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Fragrance in products
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Allergens in products
As Dr. Vicki put it, "We do it to ourselves."
The Social Media Effect: Too Many Products, Too Much Confusion
Julie raised a question many listeners are asking: has the social media skincare boom, reaching every age group, pushed people into over-treating their skin?
Trina sees it daily in her treatment room. Products look incredible online, clients buy them, and then they layer so many at once that they can't tell what's helping and what's hurting. Many don't realize half the products on their shelf do the same thing. "Get back to the simplicity of it," she said. "Your skin is simple. It doesn't need a lot. You just need to support it."
She also pointed to an irony in the market. People damage their barrier with too many products, and then the industry sells them barrier repair creams to fix it. "The industry is creating it."
Dr. Vicki added that dermatologists and estheticians only see a small percentage of the people doing this at home. Her message to everyone else: if your skin is reacting, whether it's perioral dermatitis, hives, or general irritation, stop the extra steps.
How to Repair a Damaged Skin Barrier
The encouraging news is that your barrier recovers. "Your skin barrier is brilliant," Dr. Vicki said. "It's going to go back to normal. It's going to bring its lipid layer back and everything will be okay." But it can't do that while you keep piling on products.
When your barrier is compromised, the hosts recommend:
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Stop exfoliating until the stinging and irritation settle.
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Switch to gentle products and fewer of them.
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Use a lipid-forward barrier cream. Trina explained that true barrier repair creams are built around lipids to protect and restore the surface.
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Keep it simple. Julie's longtime reset, which Trina taught her years ago, is just a few nights of Aquaphor before bed. Dr. Vicki's favorite occlusive in a pinch is Triple Paste, for its zinc oxide and petrolatum. You can find both on our ShopMy page, linked at the bottom of this blog.
Trina takes the idea of not stripping your skin further than most. With skin on the drier side, she skips cleanser entirely and simply splashes with water, because the oil your skin makes "is your natural moisture barrier. It is your God-given moisturizer. So why are we washing it off so much?" She is quick to add that this isn't for everyone: if you wear makeup or sunscreen, wash your face.
Why Exfoliation Still Matters as You Age
Exfoliation doesn't just help acne. Dr. Vicki explained that skin cell turnover happens roughly every 28 days in younger skin, but slows to 40 or even 60 days as we get older. The result is what she described as dead skin "heaped up" on the surface. "It's not dry skin from being dry. It's like dead skin that isn't falling off, so they need a little exfoliation."
That doesn't have to mean anything aggressive. "Sometimes that just means a wash rag. Sometimes that just means cleansing with a little scrub or a little salicylic acid," she said. For patients using prescription acne treatments, she teaches every-other-day use, breaks, and consistent moisturizer to protect the barrier along the way.
Trina agreed: "I am definitely not anti-exfoliation. I am for exfoliation, but I'm for exfoliation in a controlled manner." And she believes you'll be better guided by an esthetician or dermatologist than by people on social media promoting products to you.
Chemical vs. Physical Exfoliation: What's the Difference?
Trina explained the two types:
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Chemical exfoliants include Retin-A, retinol, glycolic acid, salicylic acid, lactic acid, and other acids. They work deeper into the layers of the skin.
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Physical exfoliants include washcloths, scrub brushes, and scrubs. They work only at the surface.
Using her brick wall again, Trina explained that scrubbing the top of the wall only removes the bricks that have already lost their mortar. "It's a much lighter exfoliation at the surface. You're not really getting into the layers." Physical exfoliation feels good and leaves skin soft, but scrub too hard and you get redness and inflammation without the benefit. "If you're looking for a feel-good exfoliation, I think physical is more fun. Chemical is deeper and does more."
Dr. Vicki then quizzed her co-hosts. Walnut shell: physical. Citric acid: chemical. Rice powder: physical (Julie guessed both). Pumice: physical. Sugar: physical, even though, as Dr. Vicki pointed out, glycolic acid comes from sugar cane.
How Often Should You Exfoliate?
There's no single number, and that's the point. Dr. Vicki's guidance is to exfoliate to "whatever your skin can handle" while keeping the moisture barrier up. Julie's example: a mild lactic acid serum once a week, with a ceramide moisturizer and daily sunscreen doing the barrier care.
Trina shared her own balance: an exfoliating cleanser that combines acids with gentle beads, used once a week in the shower; a retinol twice a week; and a glycolic cream about once a week. That's less than she used to do. "I'm older now." Dr. Vicki called her "a living, breathing example of how to balance this."
As for when to start, Dr. Vicki said children shouldn't exfoliate unless they have acne, and then only the affected area. Oily preteens and teens may benefit from gentle exfoliation about every other day. For everyone else, it's a personal choice, and starting in your mid-20s is reasonable.
Trina had a direct message for parents: "Please get them to a dermatologist if you can. And help them so that they don't live with scars for the rest of their life." Dr. Vicki added that even urgent care can prescribe acne treatment and refer you to a dermatologist.
Don't Forget the Rest of Your Body
When asked for their one piece of advice, Julie kept it short: less is more. Trina's: "Always make sure [your barrier] is stable before you do anything to it." And Dr. Vicki reminded listeners that skin doesn't stop at the jawline. She sees many older patients with dry, itchy bodies. Your chest, arms, back, and hands need moisture, and a dry back can benefit from exfoliation too. "Take care of every part of your skin, not just your face."
The Bottom Line
Barrier care and exfoliation aren't opposites. They're partners. Protect your barrier first, watch for stinging, simplify your routine, and exfoliate in a way your skin can handle, especially as cell turnover slows with age. When in doubt, ask a professional, not a feed.
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The Skin Master
Co-host | When Trina Renea became an esthetician she realized the key to success was lifelong learning - a goal that sets her apart from most skin care practitioners.
For over 30 years, she’s explored the fields of cosmetic chemistry, medical esthetics, dermatology, and plastic surgery, becoming an expert in a wide expanse of professional skin care brands, equipment, and treatments. She is a member of the Society of Cosmetic Chemists with three certifications in cosmetic sciences from UCLA and continues to attend spa, medical, esthetic, and scientific conferences worldwide.
Now considered a skin master due to her broad expertise, Trina is a consultant to the Southern California beauty industry and medical esthetic community, selecting and training staff, developing treatments, guiding product selection, and helping professionals best serve their clients.
In 2004, she founded the Facial Bungalow, a clinical spa offering advanced skin care technologies where she continues to work one-on-one with clients to this day. In 2008 she created Trina Renea Skincare.
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