What is the difference between HydraPeel and HydraFacial? Which is better for congested, oily, sensitive skin?

Hello! I am looking to purchase a series of treatments. I noticed two different treatments available at my derm office. The hydrapeel and hydrafacial. I have very congested, oily, sensitive, skin with mild rosacea. I have a lot of hyper-pigmentation and mild scarring. I would like to know the difference between the two treatments and which would be the most effective for my skin issues. Thank you!