Every batch can have slightly different viscosities. Also, the viscosity can depend on how hot or cold it is where you are storing your benzoyl peroxide. Lastly, if you have kept it around for a long time, it can become less viscous over time.

However, it is 100% potent all the way until its expiration date.

Hi Dan , am Jane and i sincerely need your help . I have been on bp treatment for 6 months now and in the first two months i noticed some change aand since then iam not seeing any more changes , iam breaking out on the cheeks and chin alot although my forehead is completely cleared , kindly what might i be doing wrong am desperate

Hi Jane. You want to follow the regimen precisely, using only acne.org products until you're completely clear, and following the directions precisely. I'd recommend reading it again, watching the video again, and getting on it precisely.