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We get a lot of questions about chemical peels, everything from “what are they” (a way to remove dead skin cells) to “are they safe to use at home?” (we discuss below). Here we’ve compiled a list of the most frequently asked questions about chemical peels, with answers from our top educators.

What are chemical peels and how do they work?

Chemical peels are a method of exfoliating your skin. Skin exfoliation refers to the process of removing dead skin cells to reveal healthier skin.

Why do you need to exfoliate?

While skin exfoliation is a naturally occurring process, shedding every 28 days, most skin types need some help!

Aging skin - With age, this process slows down and causes our skin to look dull and tired looking. Using exfoliants regularly dissolves dead, flaky skin cells, and helps create a more even skin tone and clarity.

Oily skin– This skin type tends to saturate dead skin cells with excessive oil, making it difficult for dead cells to shed off naturally.

Dry skin – This skin type tends to let dead skin cells accumulate too quickly which can make skin look dry and dull.

How do chemical peels differ from other forms of exfoliation?

Chemical peels are composed of an acid(s) including ones that may vary in their pH value.(Without getting too scientific, the lower the pH value, the stronger the actual acid is.) Acids are very effective to use to exfoliate the skin, but because of their strength, acid-based peels that contain more than 10% total acid and have a pH below 3.5, should be done under the guidance of an esthetician.  

While peels are normally based on a particular type of acid, exfoliatorsthat you use at home may contain granular ingredients such as almonds or rice bran wax. Although they are not as strong as acids, granular methods are still excellent ways to exfoliate your skin regularly, and should be used 2-3 times a week or as recommended by your skin care professional if you are receiving professional peel treatments.

What are the different types of peels?

Chemical peels are generally categorized into 3 categories:

Deep peels– Deep peels are the most invasive and most risky. Carbonic Acid (Phenol) is a solution classically used in deep peels, but can be very painful to the skin. Most often this is performed under medical supervision. After a Phenol Peel, your face will be swollen and can take up to a month to fully recover.

Below are the downsides to deep peels:

  • Peeling
  • Redness
  • Irritation
  • Blistering
  • Swelling
  • Burning
  • Scarring
  • Infection
  • Solar Sensitivity
  • Bleeding

Medium peels – Trichloroacetic Acid is a chemical commonly used in medium peels. TCA peels are done on an outpatient basis, but may require light sedation depending on the concentration of Trichloroacetic acid used.

Higher concentrations of acid will penetrate the skin more deeply, resulting in more dramatic improvements, but may also cause more discomfort and a longer recovery time. Though TCA chemical peels are applied in the same way as milder chemical peels, the acid used in TCA peels is much more potent, causing a more significant burn.

After TCA peels, a superficial crust forms over the treated area, then peels off within three to seven days.

Superficial peels– These peels are the mildest and thus safest peels for your skin. Peels containing glycolic acid, lactic acid, fruit acids, or papaya enyzmes, fall into this category. Unlike deep or medium level peels, peels at this level are not meant to require medical attention. Additionally, the purpose of these “lighter peels” is to eliminate harsh side effects that can happen with deep or medium level peels. 

In sum, all peels are NOT created equal. Chemical peels are a very effective form of removing dead skin cells, but beware of the different level of facial peels and of the associated risks and recovery time. As always, it is best to consult a skin care professional for proper advice on in-salon and at-home options.

3 Responses


January 27, 2023

To be honest, I generally don’t read. But, this article caught my attention. Thank you for providing valuable information; I was very nervous about getting a chemical peel because it was my first time. However, since you addressed the significance and benefits I would receive from this treatment, I am completely convinced that I required it. And, in order for this to appear more effective, I need to consult with a professional to guarantee that it is both effective and safe.

Bersa Barfield
Bersa Barfield

March 03, 2016

Very helpful information, thank you

Harini Jhaveri
Harini Jhaveri

October 20, 2015

It is perfect information about peel for those who are anxious to learn and also for people like me who are Esthetician , to get some refreshment on peel. Its very nicely written to explain peel to the client in very simple way, leaving them with no more anxiety about peel.
Thank you for sharing .

Harini Jhaveri

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