Dear Ivy

The bha toner and the aha gel have a pH level of 3.7. The Ingredients of The bha toner is shown below, and the Betaine Salicylate(bha) is 0.9%.

Water,Glycerin,Butylene Glycol,1,2-Hexanediol,Betaine Salicylate,Hizikia Fusiforme Extract,Codium Fragile Extract,Ecklonia Cava Extract,Gelidium Cartilagineum Extract,
Salix Alba (Willow) Bark Extract,Centella Asiatica Extract,Portulaca Oleracea Extract,Sodium Hyaluronate,Soy Isoflavones,Chamomilla Recutita (Matricaria) Flower Extract,
Glycyrrhiza Glabra (Licorice) Root Extract,Aloe Barbadensis Leaf Juice Powder,Allantoin,Dipotassium Glycyrrhizate,Panthenol,Sodium Hydroxide,Xanthan Gum.

Thank you.