Trichloroacetic Acid
ExfoliantAlso known as: TCA, TCA Peel
A medium-depth chemical peel agent used professionally for treating acne scars, wrinkles, and hyperpigmentation.
Routine placement
Treatment · PM
Time to results
2-4 weeks for smoother texture; 6-8 weeks for even tone
Deep exfoliation, treats acne scars, reduces wrinkles, addresses severe hyperpigmentation.
Professional use only at concentrations above 20%. Home-use products at 10-15% with extreme caution. Requires proper neutralization.
Well-established in dermatology for medium-depth peels. Higher concentrations (35-50%) require professional application. Effective for acne scarring.
- darker skin tones (higher PIH risk)
- active infections
- isotretinoin use within 6 months
Cautions
Can cause significant burning, peeling, and downtime. Risk of scarring and post-inflammatory hyperpigmentation, especially on darker skin tones.
What does Trichloroacetic Acid do for skin?
Trichloroacetic Acid is used in skincare primarily as a exfoliant ingredient. Its effects depend on concentration and formulation. Check the benefits section above for specific details.
Is Trichloroacetic Acid safe for sensitive skin?
Trichloroacetic Acid is generally well-tolerated, but sensitivity varies by individual. Start with a patch test if you have reactive skin, and introduce gradually into your routine.
Can I use Trichloroacetic Acid every day?
For most skin types, daily use is appropriate at standard concentrations. If you experience any irritation, reduce frequency to every other day.
Can I use Trichloroacetic Acid with retinol?
Use caution when combining exfoliating or active ingredients. Alternate days or use at different times of day to avoid over-irritation.
Does your skincare contain Trichloroacetic Acid?
Paste your product's ingredient list to check, or create your Skinularity ID for a full routine.
Find Trichloroacetic Acid products
Browse skincare products containing Trichloroacetic Acid.
Related to Trichloroacetic Acid
An oil-soluble beta hydroxy acid that penetrates into pores to dissolve excess sebum and dead skin cells. The go-to ingredient for acne-prone and oily skin.
A gentle alpha hydroxy acid derived from milk. Larger molecular size than glycolic acid means slower, more gentle penetration. Also has humectant properties.
An alpha hydroxy acid derived from bitter almonds with a large molecular size, making it one of the gentlest AHAs available.
A naturally occurring alpha hydroxy acid found in citrus fruits. Used primarily as a pH adjuster in skincare, with mild exfoliating properties at lower pH.
A combination of salicylic acid and phytosphingosine (a ceramide precursor). Provides gentle exfoliation while supporting barrier repair.