Sand & Sky Australian Essentials Brightening Toner with Niacinamide & Glycolic Acid – Marshmallow Extract Essence, Exfoliates & Strengthens Skin, 4.2 fl oz

Customers find the toner effective, with one mentioning it cleared their skin significantly. However, the product receives mixed feedback about residue, with one customer noting it leaves their face smooth after drying. Moreover, several customers report that the toner is too harsh for their skin and causes stinging sensations.