yingpo30 Mar 2021
webmaster25 Mar 2021
psetta25 Mar 2021
Patients with oral lesions for
instance, oral lichen planus, pemphigus , lupus
erythematosus, usually have multiple lesions and
System15 Mar 2021
Natural extracts with red purple blue color, for example in berries family named “Anthocyanin”. We extracted these substances from purple corn cob (waste) and butterfly pea petal.