What Is a TCA Peel?
A TCA peel is a chemical peel that uses trichloroacetic acid (TCA) to remove damaged layers of skin so smoother skin can grow back. TCA is the mainstay of medium-depth chemical peels, which remove cells from the epidermis (outer layer) and the upper dermis (middle layer).
TCA is used at 10% to 20% for superficial peels and at 35% for medium-depth peels. It can be combined with Jessner's solution or 70% glycolic acid to reach medium depth. Deeper peels bring bigger changes but take longer to heal and carry more risk of complications.
TCA Peel at a Glance
| Also called | Trichloroacetic acid peel. A type of chemical peel (chemexfoliation). |
|---|---|
| What it treats | Wrinkles, sun damage, age spots, uneven skin tone, mild acne scars and actinic keratoses |
| How it works | A controlled chemical injury makes damaged skin peel off and new skin grow |
| How it's given | Applied to clean skin with gauze or a cotton-tipped applicator, in an office or outpatient facility |
| Downtime | 7 to 14 days of redness, swelling, crusting and peeling after a medium peel |
| How long results last | Not permanent. Medium peels may be repeated at 6- to 12-month intervals if needed. |
| Side effects | Redness that can last months, darker or lighter skin, infection, cold sore flare-ups and, rarely, scarring |
| FDA status | No chemical peel products are FDA-approved. The FDA advises using them only under professional supervision. |
How Does a TCA Peel Work?
A TCA peel works by injuring the skin to a controlled depth, so the treated layers peel away and new skin grows in. Higher concentrations wound more deeply. Treated skin turns white ("frosting"), the endpoint providers watch for. The exfoliation stimulates new skin growth and collagen, with more evenly distributed pigment.
What Does a TCA Peel Treat?
A TCA peel treats signs of sun damage and aging, along with some pigment problems and scars. Medium-depth peels may be used for:
- Fine to moderate wrinkles
- Age spots (solar lentigines) and uneven skin color
- Multiple actinic keratoses (precancerous scaly spots)
- Superficial acne scars
A 2021 systematic review of five studies found that TCA peeling significantly improved sun-damaged facial skin. Chemical peels can't remove deep scars or wrinkles or tighten sagging skin. Laser resurfacing, fillers or a facelift may suit those concerns better.
What to Expect Before, During and After a TCA Peel
A TCA peel involves a consultation, an in-office treatment and 7 to 14 days of healing at home.
Before the Peel
- Tell your provider about isotretinoin use, cold sores, easy scarring, medicines and past cosmetic treatments.
- You may follow a pre-peel skin care plan for 2 to 4 weeks, which can include a retinoid or hydroquinone.
- Avoid tanning and direct sun for two weeks before treatment.
During the Peel
Your skin is cleansed and your eyes protected. The provider applies the TCA solution, then cool compresses soothe the skin.
After the Peel
- First 2 days: skin is red, and swelling worsens for 48 hours.
- Days 7 to 14: skin crusts and peels off.
- Home care: daily soaks, ointment, an antiviral medicine and total sun avoidance until healed.
- Follow-up: a follow-up visit is required.
Don't pick, rub or scratch treated skin.
How Long Do TCA Peel Results Last?
TCA peel results show once the skin heals, but they are not permanent, because skin keeps aging. Over time, age and new sun damage can bring new lines and color changes. Daily sunscreen after healing helps maintain results.
TCA Peel Risks and Side Effects
TCA peel side effects tend to be mild when a doctor experienced with chemical peels performs the peel. Possible side effects include:
- Redness that may last for months
- Temporary darkening of the skin, or lighter skin color
- Bacterial, fungal or viral infection, including a cold sore flare
- Scarring, which is rare and usually on the lower face
Color changes are more common in brown or black skin and can sometimes be permanent.
Who Shouldn't Get a TCA Peel?
A TCA peel isn't right for everyone. A provider may advise against it if you:
- Are pregnant
- Took isotretinoin in the past six months
- Have a personal or family history of keloids, or abnormal scarring
- Get frequent or severe cold sores
- Have a skin infection or facial dermatitis
- Can't stay out of the sun while healing
TCA Peel vs. Light and Deep Chemical Peels
A medium-depth TCA peel sits between a light glycolic or salicylic acid peel and a deep phenol peel.
| Light peel | Medium (TCA) peel | Deep (phenol) peel | |
|---|---|---|---|
| Depth | Epidermis | Epidermis and upper dermis | Lower dermis |
| Best for | Fine wrinkles, acne, uneven tone, dryness | Wrinkles, acne scars, uneven tone | Deeper wrinkles, scars, precancerous growths |
| Healing time | 1 to 7 days | 7 to 14 days | 14 to 21 days |
| How many | Often 3 to 5, 2 to 5 weeks apart | Repeated as needed | Only one on the face |
TCA Peel at GENEVA
At GENEVA Primary Care & Med Spa in Alpharetta, GA, a provider evaluates your skin concern, skin type and health history, then recommends treatment at GENEVA or a referral to a dermatologist or other specialist. Learn more about chemical peels and acne scar treatment. GENEVA serves patients from Alpharetta, Johns Creek, Milton, Roswell and Cumming.
Related Terms
- VI Peel
- Atrophic scarring
- Actinic keratosis
- Melasma
- Post-inflammatory hyperpigmentation (PIH)
- Aging skin
TCA Peel FAQs
Are TCA peels safe?
TCA peels are generally safe when an experienced, trained provider performs them, and side effects tend to be mild. Dermatologists have performed chemical peels for more than 50 years with an excellent safety record. A medium-depth peel can cause redness that lasts for months, temporary darkening, lighter skin color, cold sore flare-ups and, rarely, scarring. Color changes are more common in brown or black skin and can sometimes be permanent, so people with skin of color should see a dermatologist with expertise using chemical peels on darker skin tones.
How long does it take to recover from a TCA peel?
Recovery from a medium-depth TCA peel usually takes 7 to 14 days. Skin is red and swollen at first, and swelling can worsen for 48 hours. Blisters may form and break, then the skin crusts and peels off. Most people can wear camouflaging makeup after 5 to 7 days. Aftercare includes daily soaks, ointment, an antiviral medicine for 10 to 14 days and total sun avoidance until healed. Call your provider if your skin burns, itches or swells.
Does a TCA peel hurt?
A TCA peel can sting and burn during treatment, and with a medium-depth peel that feeling may last up to 20 minutes. Cool compresses soothe the skin, and some patients receive a sedative and pain reliever. Afterward, treated skin stings and feels swollen. Ice packs and over-the-counter pain relievers such as ibuprofen or naproxen may ease discomfort. Ask your provider before the peel which pain relievers are right for you.
Can a TCA peel remove acne scars?
A TCA peel can improve mild acne scars, but chemical peels can't remove deep scars. Medium-depth peels using Jessner's solution plus TCA have shown benefit for acne scarring. For ice pick and boxcar scars, providers may use TCA CROSS, which applies high-strength TCA to each individual scar. In a study of 53 patients treated with 70% TCA CROSS every 2 weeks, 66% had good or excellent improvement (more than 50%) after 3 months of follow-up. A 2026 review covering 937 patients reported improvement rates of 50% to 80%. Depending on scar type, some people need more than one type of scar treatment.
Can you do a TCA peel at home?
No, you shouldn't do a TCA peel at home. The FDA warns against buying or using chemical peel products, including those containing TCA, without supervision by a dermatologist or licensed, trained practitioner. The FDA has not approved any chemical peel products. Products sold online and in stores have contained up to 100% TCA, too strong for safe home use. They can cause severe chemical burns, pain, swelling, infection, skin color changes and disfiguring scars, sometimes needing emergency care. Report any injury from a peel product to the FDA's MedWatch program.
What is the difference between a TCA peel and a glycolic acid peel?
A glycolic acid peel is usually a light peel that treats only the outer layer of skin, while a TCA peel is usually a medium-depth peel that also reaches the upper dermis. Light peels heal in 1 to 7 days and often need 3 to 5 sessions. A medium TCA peel takes 7 to 14 days to heal and leaves skin noticeably smoother. At 10% to 20%, TCA can also be used as a superficial peel. Your provider helps choose the peel depth based on your skin condition and goals.
Can a primary care provider evaluate you for a TCA peel?
Yes, a primary care provider can evaluate you for a TCA peel by reviewing your skin, health history and medicines. At GENEVA in Alpharetta, a provider evaluates your concern and then recommends treatment at GENEVA or a referral to a dermatologist or other specialist. The American Academy of Dermatology notes that peel results depend largely on the skill of the person performing the peel, so ask about your provider's experience with your skin type.