What are the advantages of using the HQ Free formulas?
The regular formulas of Pigment Gel dyschromia controller contain hydroquinone. Hydroquinone is a bleaching ingredient that will oxidize when exposed to air and light causing the product to turn dark brown. When this happens, the product becomes a stain (the very problem you’re trying to correct) and must then be discarded. It is quite possible that topically applied hydroquinone products that have not been covered with an occlusive sunblock could turn brown directly on the skins surface. So, if you are not compliant about applying sunblock, the HQ Free formulas might be a better choice for you.
