This soap is additive-free and for laundry use, while Shirayuki no Uta is also additive-free and for kitchen use. Both are similar in that they are 180 grams each. Shirayuki no Uta tends to lose its oil content relatively easily, which may be why it doesn't seem to decrease much, but according to others' reviews, Shabondama Snowl seems to have good lather and opinions that it runs out quickly. Many people use both for bathing, and I also use Shirayuki no Uta for bathing. The price of Shirayuki no Uta has increased, so this is more cost-effective. As the title says, it's 1440g with 8 pieces of 180g each, and the price is also 1440 yen. Due to the size being tight, the packaging will be simple, and please be aware that there may be cracks, chips, or dents.