What Is in a Chemical Peel? Ingredients, Acids, and How They Work

If you’ve ever wondered what is in a chemical peel, you’re not alone. A chemical peel is one of the most trusted cosmetic treatments for improving the skin’s appearance, texture, and overall health. While the name may sound harsh, a chemical peel is actually a carefully controlled outpatient procedure that uses specific acids to encourage the skin to shed damaged cells and generate new skin.

Understanding what goes into a chemical peel can help you feel more confident about treatment, especially if you’re dealing with acne, wrinkles, uneven pigmentation, or sun damage. Below, we’ll explore the ingredients, acids, and science behind how a chemical peel works on different skin types.

How a Chemical Peel Works on the Skin

A chemical peel uses a chemical solution applied to the treatment area to create a controlled injury in the skin. This process targets dead skin cells in the stratum corneum and, depending on strength, can reach deeper dermal layers. As the skin heals, it produces new skin that looks smoother, brighter, and more even.

The depth of penetration determines whether a peel is classified as superficial peels, medium depth peels, or a deep chemical peel. Each option addresses different skin conditions and concerns, from acne prone skin to deep facial lines and sagging skin.

Common Acids Found in Chemical Peels

The acids used in chemical peels determine how the skin responds and what results the treatment delivers.

Alpha Hydroxy Acids

Alpha hydroxy acids (AHAs) are water soluble acids commonly used in light peels and superficial peels. These acids exfoliate the surface of the skin and improve skin texture with minimal downtime.

Glycolic acid is one of the most widely used alpha hydroxy acids. It helps improve fine lines, uneven skin tone, and sun damage by gently exfoliating and stimulating cell turnover. Lactic acid is another popular option, especially for sensitive skin. It offers exfoliation while supporting hydration and improving skin tone. Mandelic acid is often chosen for acne prone skin or black skin because it penetrates more slowly and reduces the risk of irritation.

Phytic acid is a gentler alpha hydroxy acid that helps brighten uneven pigmentation and support anti inflammatory benefits, making it suitable for sensitive skin types.

Beta Hydroxy Acid

Salicylic acid is a beta hydroxy acid (BHA) and one of the most effective ingredients for acne and oily skin. Because it’s oil soluble, it can unclog pores, reduce enlarged pores, and calm inflammation. Salicylic acid is often used for acne scars, scaly patches, and active acne, especially when excess oil production contributes to breakouts.

Retinoic Acid

Retinoic acid is sometimes included in chemical peels to improve fine wrinkles, lines and wrinkles, and uneven skin tone. It supports collagen production and accelerates skin renewal, making it valuable for improving fine lines and reducing signs of sun exposure.

Trichloroacetic Acid

Trichloroacetic acid is commonly used in medium peels and medium depth chemical peels. These medium depth peels penetrate deeper than light chemical peel options and can address acne scars, fine lines, wrinkles, and uneven pigmentation. Medium chemical peel treatments may also help with age spots and actinic keratosis.

Medium peels work within the upper dermal layers and are often recommended by plastic surgeons or a dermatologic surgeon when more noticeable correction is needed without moving into deep peel territory.

Carbolic Acid and Croton Oil

A deep chemical peel relies on stronger ingredients like carbolic acid, also known as phenol, often combined with croton oil. These deep chemical solutions reach the reticular dermis and can dramatically improve deep scars, deep facial lines, precancerous growths, and severe sun damage.

Croton oil plays a key role in regulating penetration depth in a deep chemical peel. A deep peel offers significant results but requires longer recovery and careful sun protection afterward. Deep chemical treatments are sometimes associated with aesthetic surgery level outcomes and may be overseen by experienced plastic surgeons.

Light, Medium, and Deep Chemical Peels Explained

Light peels focus on surface exfoliation. These superficial peels are often used for acne, uneven skin tone, and early signs of wrinkles. Recovery may last five to seven days or less, and many people can still wear makeup shortly after healing.

Medium peels and medium depth peels reach deeper layers to improve acne scars, fine lines and wrinkles, sun damage, and uneven pigmentation. These medium chemical peel treatments require more downtime but offer more visible improvement.

A deep chemical peel targets the deepest dermal layers. A deep peel is reserved for advanced skin conditions like deep scars, deep facial lines, sagging skin, and severe sun damage. Recovery is longer, and strict sun protection is essential.

Book a Chemical Peel at You Derma in Ottawa

Now that you know what is in a chemical peel and how different acids work, the next step is choosing the right treatment for your skin. At You Derma in Ottawa, chemical peel treatments are carefully selected to address your unique skin conditions and goals.

If you’re ready to improve fine lines, acne, wrinkles, and skin tone while supporting healthy new skin, book a chemical peel at You Derma today or learn more about our chemical peels and let our team guide you toward clearer, smoother skin.