Trichloroacetic acid

Trichloroacetic acid (TCA) is an acid that is used in various medical and cosmetic procedures. It is a derivative of acetic acid and has the chemical formula CCl3COOH.

Uses

TCA is used in biochemistry for the precipitation of macromolecules, such as proteins and DNA. In medicine, it is used as a topical medication for the treatment of warts, including genital warts. It is considered safe for use in pregnancy.

In cosmetology, TCA is most commonly used in 'chemical peels', where it is applied to the skin to cause the top layer to peel off, revealing the newer, less damaged skin underneath. This can help to reduce the appearance of fine lines, small scars, and uneven skin tone.

Safety

TCA is a powerful acid and can cause burns if it comes into contact with the skin or eyes. It should always be used with caution and protective equipment should be worn when handling it. If TCA is ingested, it can cause serious harm and medical attention should be sought immediately.

See also

• Acetic acid
• Chemical peel
• Wart

References

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