TCA Chemical Peel

A medium-depth chemical peel using trichloroacetic acid (TCA) to exfoliate the epidermis and stimulate dermal collagen renewal. Addresses sun damage, melasma, fine lines, acne scarring, and overall skin texture through controlled chemical exfoliation.

The TCA peel at POWAB Clinic is a medium-depth chemical exfoliation procedure that uses trichloroacetic acid at a controlled concentration to penetrate through the full epidermis and into the upper papillary dermis. TCA denatures the proteins of the outermost skin layers, causing them to coagulate and subsequently shed over the following days, revealing the fresher, less damaged skin beneath. Simultaneously, the controlled injury triggers a robust dermal healing response — fibroblasts increase collagen and elastin production, melanocytes redistribute more evenly, and the new epidermis forms with improved organisation and thickness. The procedure begins with thorough degreasing and preparation of the skin surface to ensure even acid penetration. The practitioner then applies the TCA solution in measured, even coats, monitoring the frosting reaction — the white colour change that indicates the depth of protein coagulation. A light frost indicates epidermal-level peel, while a more opaque frost indicates penetration into the papillary dermis. The practitioner controls the depth by varying the number of coats, the concentration, and the application pressure, tailoring the treatment intensity to the patient's skin condition and tolerance. During application, patients experience a burning or stinging sensation that intensifies with each coat and subsides within 2 to 5 minutes as the acid is neutralised. No anaesthesia is required, though the practitioner may apply a fan or cool air to manage discomfort. The total application time is approximately 15 to 20 minutes within the 30-minute appointment. Downtime for a TCA peel is the most significant of POWAB Clinic's offerings. The treated skin will appear red and tight immediately after the procedure, progressing to a dark, leathery crust or flaking over the next 3 to 7 days. Peeling typically completes by day 7 to 10, revealing pink, fresh skin that gradually returns to normal tone over the following weeks. Strict sun protection (SPF 50+, hat, shade) is mandatory for a minimum of 4 weeks. The full collagen-remodelling benefit develops over 2 to 3 months. Most patients see significant improvement from a single session, though a series of 2 to 3 peels at 3-month intervals can be used for deeper concerns.