That's right. Panoxyl is the trade name. Benzoyl Peroxide is gerneric name (chemical name).
2.5 and 5% are different in terms of strength as #1 said.
If it causes too much irritation, apply and leave it about 3-5 minutes and wash your face as usual ka.
I'm sorry to type in English. I don't have Thai keyboard ka.
22 ต.ค. 45 12:41:03