Did a 10% TCA peel. Is it really that weak?

This is difficult to answer without an in-person evaluation. I recommend getting a formal evaluation with a cosmetic dermatologist. Best, Dr. Emer

I do TCA peels ranging from 15% to 45% routinely. I don't bother doing 10% TCA peels because they have not been effective in my practice. 15% TCA peels do not produce a result that will show up in before and after photos, but it does appear to give the skin a refreshed appearance. I don't do 10% TCA peels because they are ineffective. 

In general, 35 % TCA peel is recommended for a noticeable nice result.  You are wasting your time and money on a 10 % peel.

Agree, for at home peels, I would be conservative. As specialist we use 15, 20, 30, 50 , 70 all  the way up to 100%. This is however for specialist use only, and even still there are risks. In my practice I do use 10 % TCA for my dermal therapist - they first use derma planning to treat, then one coat TCA. Instant glow, tightening and refreshed skin. Depends on technique. Stay safe and don't burn yourself. TCA is self neutralising, as you know, hence coats add up. Dr Davin Lim. Brisbane. Australia.