[dailybit]

Back of bottle of 25% TCA says: Apply 3 coats of the peel evenly per procedure .. Leave on 1-2 min...

So I'd do 1 layer; for 2 minutes carefully following instructions; then neutralize.

If I did a second layer, say, because there was no frosting, would that be _another 1-2 minutes? And so on for a hypothetical 3rd layer; _another 1-2 minutes.

 

[gymrat]

Who did you purchase this peel from? The instructions say apply 3 layers?? If this is your first TCA do not apply 3 layers. Apply one layer leave on for 5 mins then neutralize.

Here are instructions from a very reputable company. A company I purchase all my peels from.

https://cdn.userway.org/remediations/pdf/425/77180f34758daa46.pdf

 

[dailybit]

I did a 25% TCA for 3 minutes with 1 layer. Applied a second layer then immediately neutralized. Seemed to go well; was pink had good frosting.
The "ambiguous instructions":

So 4 weeks from now; if I did another peel; could I do 1 layer, then at 1:30 apply a second layer; then neutralize at 3 minutes?