Let’s Talk TCA: The Acid That Works Below the Surface
When it comes to skincare acids, most people have heard of glycolic or lactic. But there’s another quiet powerhouse that’s been trusted in dermatology for decades: TCA, or trichloroacetic acid. And if you're someone looking for real results—from softening sun damage to smoothing fine lines—this is the one to know.
What is TCA?
TCA is a derivative of acetic acid (the base of vinegar), but with three hydrogen atoms replaced by chlorine, making it much more potent and targeted for clinical use. It’s a non-toxic chemical exfoliant that’s been used in medical and aesthetic treatments for over 50 years.
In skincare, it’s classified as a medium-depth peel agent, meaning it reaches deeper layers of the skin than surface exfoliants, helping to shed damaged skin cells, promote collagen stimulation, and improve the appearance of fine lines, texture, and uneven tone.
What Does It Help With?
Hyperpigmentation and sun damage
Fine lines and uneven texture
Acne scarring and large pores
Dullness and loss of elasticity
Melasma, age spots, and overall skin tone clarity
How Strong Is It?
TCA is used in a variety of concentrations depending on your skin’s needs and the results you’re looking for:
10–15%: Gentle resurfacing with minimal downtime
20–25%: Deeper exfoliation with more dramatic smoothing and brightening
30–35%: Intense resurfacing with visible peeling and longer recovery
It’s not a one-size-fits-all acid, and that’s what makes it so powerful in the hands of a trained professional—it can be tailored and layered depending on your goals.
What About the “No Peel” Peel?
My RDS Facial Treatment features a 25% TCA solution, blended with hydrogen peroxide, kojic acid, and peptides—designed to deeply remodel the skin without visible flaking or peeling.
Yes, really. It’s sometimes referred to as a “no peel” peel, because while the ingredients work at a cellular level to brighten, firm, and refine, they don’t require downtime or shedding. This makes it an incredible option for anyone wanting visible results without disrupting their routine.
Even better, the RDS Peel can be used as a monthly refresh or in a series, with different modalities layered into each session to maximize benefits.
TCA might sound clinical—and in many ways, it is. But in the right formulation, and in the right hands, it’s one of the most transformative tools we have in skincare. If you're curious whether it’s right for you, I’d love to talk about it with you during your next visit.
🌿 Ready to learn more?
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