TCA Chemical Peel Safe for Under Eye Use?

I have used TCA for the lower eyelids with excellent results but it sounds as if this may be too aggressive for you given the thin skin you describe.
Retin-A may actually thicken the skin. I think your problem is twofold.
Gel is absorbed but it is incredibly drying. You may want to consider a cream preparation.
Retin-A can create the sensation of dry flaky skin.
To this end, I would recommend liberal use of moisturzing agents and slow but increasingly progressive applications of the Retin-A.
I hope this helps.

I would defer this treatment to a specialist. Chemical peels around the eyes are great, but have risks if not properly performed. We recommend TCA peels in our Los Angeles office. Raffy Karamanoukian MD

Loooreee, TCA peels are very effective for the lower lids. However, if you are considering anything more than the concentrations that you have already tried at home, then you should have your doctor do it. We commonly do 25% and 35% lower lid TCA peels in the office and have great results. It takes about a week for the skin to heal.

I am really surprised to hear that you were able to obtain a 20% TCA solution and told to use it yourself. There is a risk of scarring and other problems if it is not done right, and if you get too close to the eyes and get some in it could cause serious vision problems friom burning the cornea. This is something that should be done by a medical professional and it is a safe procedure under those circumstances.

Loooreee
I would recommend that you consult with a Board Certified Plastic Surgeon before attempting a 8% TCA peel on your under eyelid skin. This skin is much thinner than in the face and cheek and care must be taken to avoid going too deep or accidentally getting the TCA in your eyes. I also recommend pre-treating patients for 2 to 6 weeks with the Obagi system, sunscreen and Retin-A before a chemical peel depending on their skin type. Tanning and Retin-A should be stopped 2 weeks before and Accutane stopped 1 year before a chemical peel.