Even Tone Correcting SerumEven Tone Correcting Serum, featuring the patented b. r. y. t. complex by skinbetter is a ground breaking, non hydroquinone, non retinol formula that delivers a visibly dramatic reduction in the appearance of hyperpigmentation. Breaks up the appearance of hyperpigmentation. Brightens the appearance of skin without the use of hydroquinone. Improves the appearance of yellowing that often accompanies the look of hyperpigmentation in certain skin types.