What should you know about TCA CROSS at home?

TCA CROSS is not a general exfoliation routine. A clinician selects suitable scars, protects nearby skin, controls the acid, and places it inside individual depressions. At home, it is easy to treat the wrong scar, spill onto normal skin, use an unsuitable strength, or miss an infection or condition that should be managed first.

A chemical injury may heal with prolonged redness, darker or lighter patches, persistent sensitivity, infection, or a new scar. The risk can be greater when skin is inflamed, recently shaved, sunburned, or already irritated by active products.

Do not apply TCA to acne scars or use a kit, cotton tip, needle, or online recipe for this purpose. Arrange an assessment with a qualified dermatology or aesthetic clinician who can identify the scar pattern and discuss options suited to your skin.

Until then, keep the routine simple: gentle cleansing, moisturising, and sun protection. Avoid picking acne or scars and pause any product that causes stinging or peeling. If you have already applied acid, rinse according to the product's emergency guidance and contact a medical service or poison advice service for immediate direction.

Seek prompt medical advice after home exposure if there is persistent burning, whitening, blistering, severe pain, spreading redness, swelling, discharge, or a wound near the eye. Urgent help is needed for eye exposure, vision changes, facial swelling, or breathing difficulty. Do not cover a worsening injury with more products.

Ask whether your scars are suitable for TCA CROSS, what alternatives exist, how your skin tone affects pigment risk, and what a supervised treatment and recovery plan would involve.