The collection "Lightfuls" is for skin-lightening. There are four items included, which are:
Lightful Softening Lotion
SPF30/PA++ Lightful Protective Moisturizer
Lightful Essence(Serum)
SPF20/PA+ Lightful Protective Foundation
Since I am too stupid to post pics here, you guys could check pictures at my account at MUA. Just key in "MAC lightful" and search, you'll get four of them.
This collection claims to make skin lighter and even the skin tone, and as they are promoted, they are designed for Asia skin.