When Does Skin Usually "Peel" After 20% Salicylic Chemical Peel?

I think you have a deeper peel. This brown color skin will peel in one week. Then you can decide how deep and if any scarring will occur. Do not pull on the peeling skin, it can cause scars. Let it peel by itself

Peels can be tricky because everyone's skin responds differently.  I always suggest that my patients have nothing planned for at least a good week.  But this would also depend on multiple things.  What level the peel is, how many they've had and what we're treating.  Best from BostonKayla- LME

It is very normal for any active breakout areas to scab over after a salicylic chemical peel.  It is also typical to feel a burning sensation while the peel is being applied but it should subside after it has been rinsed off.  Flaking and peeling should start within 2-3 days of application and typically stops within a week.  Talk to your provider about a moisturizer to help minimize tightness and soothe the skin.

Expectations management is important when getting a chemical peel.

Salicylic acid peels tend to cause a burning sensation more commonly than other types of peels.  The stinging may occur on the whole face.  It tends to peak and then get better.

I tell my patients to expect to peel in 1-3 days.  Not everyone experiences noticable peeling every time--this does not mean it's not working.  The peeling usually stops in 1 week.  I advise patients to moisturize with a bland lotion or cream at least 2-3 times a day after a peel and wear sunscreen daily.

Based on the above picture you may have had some crusting or just peeling skin that has not yet come off.  Moisturize more frequently in this case and consider applying a topical steroids such as hydrocortisone (check with your doctor--of course). 

This kind of peeling or crusting may occur if you had been using an exfoliating agent such as a retinoids, glycolic acid or salicylic acid product right before the peel or if you had a rash on your face when you got the peel.