Enzymatic facial peeling: what it is and why it differs from scrubs and acids

An enzyme peel is an exfoliating treatment that neither scrubs nor acidifies: it uses plant-derived enzymes that digest the proteins holding dead surface cells together. These cells detach, while the rest of the skin remains untouched.

That is the difference that matters: a scrub works through friction, an acid peel works by lowering the pH, and an enzyme peel works through selectivity. It works only on what is already dead, which is why it is the type of exfoliation tolerated even by sensitive and couperose-prone skin.

Article written by Elisa Avalle, founder of LeLang Skin Care and dermocosmetics specialist. Cover image generated with the support of artificial intelligence.

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How an enzyme peel works

The enzymes used in cosmetics are proteases, meaning enzymes that break the bonds between proteins. The most common are papain, derived from papaya, and bromelain, which comes from pineapple.

In the outermost layer of the skin, cells that are already dead remain attached to one another through protein bridges called desmosomes. A proteolytic enzyme cuts those bridges: the cells detach on their own and are washed away during rinsing. The living cells underneath have a different structure and are not affected.

This is where the practical advantage lies. A scrub does not distinguish: its action depends on how hard you rub, and on reactive skin, very little is enough to cause micro-injuries. An exfoliating acid works by lowering the surface pH; it is effective but may sting and requires greater care in the sun. An enzyme does one thing, and does it where it is needed.

Enzyme peel, chemical peel, or scrub: which one should you choose?

These are three different actions that are often called by the same name, which creates a great deal of confusion.

Scrubs are a form of mechanical exfoliation: microbeads that remove dead skin through friction. They work on the body, where the skin is thicker. On the face, they are the riskiest method because you control the pressure, and it is almost always too much.

Acid peels use alpha and beta hydroxy acids - glycolic, mandelic, lactic, and salicylic - which loosen the cohesion between corneocytes. They are the most studied and most effective for hyperpigmentation, but they must be carefully dosed: see the guide to alpha hydroxy acids and the page on mandelic acid, which is the gentlest of the family because it has a large molecule and penetrates more slowly.

The enzyme peel is the most selective and least aggressive of the three. In return, it is also the least powerful: if your goal is established dark spots or acne scars, the enzyme alone is not enough.

Many formulas today combine the two approaches, a gentle acid plus the enzymatic component, to provide both effectiveness and tolerability.

Who really needs it

An enzyme peel makes sense in four specific situations.

Sensitive or reactive skin. This is the main reason it exists. Those who cannot tolerate acids and become red when using a scrub have a real alternative here. If you do not know how to tell sensitive skin from irritated skin, the difference is explained in the sensitive skin guide.

Dull skin and uneven texture. The buildup of dead cells causes light to reflect unevenly: skin looks gray even when it is hydrated. Removing it is the quickest way to restore radiance.

Blackheads and pores that look enlarged. One thing needs to be said here: pore diameter is anatomical and cannot be reduced. What changes is how full it is. An unclogged pore reflects less shadow and is less visible.

Before a subsequent treatment. Skin freed from its layer of dead cells absorbs what you apply afterward better. It makes sense to use it the evening before an important serum.

“Exfoliating is not about removing more. It is about stopping buildup.”

How often to use an enzyme peel

The most frequently asked question, and the one people get wrong most often.

Combination or oily skin: once or twice a week.
Normal skin: once a week.
Dry or sensitive skin: once every ten to fifteen days, always starting with the lowest frequency for two weeks before increasing it.

Complete skin renewal takes about twenty-eight days in young adults and slows with age. Exfoliating every day does not speed it up: it interferes with a process that takes its own time, resulting in a weakened skin barrier that becomes red, tight, and more reactive to everything else.

There are three signs that you are overdoing it: your skin burns when you apply products you previously tolerated, feels tight even immediately after moisturizer, or becomes shiny and dull at the same time. In that case, stop using it for two weeks and start again more gradually.

How to use it, step by step

Always apply it to clean, dry skin, because water dilutes the product and reduces enzymatic activity. If you have worn makeup or used water-resistant sunscreen, you need double cleansing first.

Apply an even layer, avoiding the eye and lip contours, leave it on for the time indicated by the manufacturer - usually between five and ten minutes - and rinse with lukewarm water. Never hot water: heat increases vasodilation, which is noticeable on freshly exfoliated skin.

Do not scrub during rinsing. If you do, you have just turned a targeted peel into a scrub.

Afterward, apply only moisturizer, with no strong actives: on the evening of the peel, do not use retinoids, high-concentration vitamin C, or other acids. And the next morning, sun protection is not optional, because freshly renewed skin is more exposed.

How long does it take to see results?

Radiance and softness are noticeable immediately, from the first application: you have removed a layer that was making the skin look dull.

A more even skin texture and less visible pores require three or four weeks of regular use - a complete renewal cycle.

When it comes to dark spots, the situation is different and needs to be stated honestly: exfoliation alone does little to fade them. You need an active ingredient that acts on melanin production, as well as daily sun protection; otherwise, they will come back. The peel is the step that helps the other products work better, not the star of the show.

At-home peeling and professional peeling: where is the line?

It is the most important distinction in the entire article, because they are called the same thing but are not the same.

A cosmetic peel, the kind you buy at a pharmacy and use at home, works on the stratum corneum, meaning the surface. It improves the appearance and texture of the skin. It is safe because its concentration and pH are regulated by European cosmetics legislation.

Medium and deep peels are another category: they act at a greater depth, involve a recovery period, and must be performed by a doctor. They are intended for concerns that a cosmetic product cannot address, and carry real risks if performed incorrectly or at the wrong time of year.

Put very simply: if a treatment requires you to stay out of the sun for weeks, it is not a cosmetic product and should not be done at home.

I also advise against at-home peeling with kitchen ingredients. Baking soda, in particular, has a pH of around 9, compared with 4.7-5.7 on the skin's surface: when used on the face, it disrupts the barrier instead of exfoliating it.