This is a lineup of foam facial cleansers by Biore that is similar to the Shiseido Perfect Whip foam cleanser. There's been a recent new 2014 formulation and the line up now consists of a moisture, rich moisture, scrub, acne care and deep clear version. I have only used the acne care version whose active ingredients are an antibacterial and anti-inflamatory ingredient (no AHA/BHA). It's paraben free and alcohol free so good all around. Like most Biore products, the cost is low, about ¥300-500 depending on the store.
First of all, this is an asian foaming cleanser without SLS. Although there are youtube videos and written guides on how to make these products foam up without a foaming net, I found that the acne care version did not work very well without proper foaming ie properly dense foam. It's just hard and time consuming to do it manually so I recommend the foaming net to get the best out of the acne care product. The foam has a mild and pleasing scent, and I experienced no stinging or tingling at all - just a nice gentle cleanser. After rinsing, it left my skin feeling clean but hydrated, no tightness to speak of.
Regarding the acne part - this did not prevent acne (but I have hormonal acne so it wouldn't have worked anyway) but I got less of them and the ones that did appear were less pronounced and went away quicker than before I used this cleanser. As an example, I used to get a cystic acne every month and when I started using this product, I would just get a less angry red lump which went away after 5 days.
Overall, I am very happy with the acne care version. It helps to manage my acne flareups and is very cost effective. It doesn't dry out my skin but does a great job at cleansing.