The drug resulted in the hospitalisation of two 15-year-olds after parties in the Coffs Harbour area last weekend.
One girl was in a critical condition, but has since been allowed home.
On Monday, police charged an 18-year-old Toormina man with supplying a prohibited drug.
Yesterday, a 17-year-old went to Coffs Harbour police and has now been charged with six counts of supplying a prohibited drug.
He will face a children's court next month.
Police are warning that there may still be more of the acid in circulation and taking it could lead to adverse reactions.
The LSD tabs in question are printed with an image of Korean internet sensation Psy doing a gangnam style dance.