Basically, Pitera, a natural by-product of yeast fermentation, is a rich liquid containing amino acids, minerals, vitamins, and organic acids, said to improve skin lucency, decrease wrinkles and lighten dark spots. ... That means it helps your skin retain moisture better.

Is Pitera bad for skin?

Based on over 30 years of ongoing research, the brand found that Pitera can help enhance skin texture, radiance, firmness, reduce spots, and diminish wrinkles. SK-II clarifies that it is not true that SK-II products are harmful to skin.

How long does a bottle of Pitera last?

The Value: Expensive, but the formula justifies the price

Also, SK-II customers say that the smaller bottle of the Pitera Facial Treatment Essence, which sells for $99, can last up to four or five months even when used daily.