Differences :

A: least broken spicules ,least impurity,  used as single ingredient for cosmetic form such as cream,lotion,liquid powder

B: including some broken spicules and impurity , used as mask powder for derm a peeling use 

C:milling directly from dried freshwater sponges, only less than 10% of spongilla spicules content the rest of the ingredients are impurities: including dry algae, fallen leaves and twigs, aquatic organisms and so on. these impurities may cause skin  infection 

There are wide price range for the songilla spicule in the market.Bad quality products are milled directly from dried freshwater sponges, the, impurities using on the face is very likely to cause allergy and infection .

(only less than 10% of spongilla spicules content, the rest of the ingredients are impurities: including dry algae, fallen leaves and twigs, aquatic organisms and so on. Due to skin problems, especially acne skin, will have a relatively large area of skin damage, so this kind of impurity using on the face is very likely to cause allergy and infection.)

We propose to choose high purity extracts, our songilla spicules powder with purity up to 99% and the impurities and broken needles are removed by sieve