Does Salicylic Acid Work to Lighten Dark Spots?

While a salicylic acid peel is better for acne, since it scoops the keratin out of the follicle, glycolic acid is a superior peeling agent for pigmentation. I would also recommend adding a retinoid to your hydroquinone. Oftentimes, increasing the strength to 6% will give a significantly better improvement than 4%. One of my dermatology friends even recommends 10%. I am leery of this strength however, since it can cause irritation. Other agents such as azelaic acid, arbutin, and... more

SA is a good choice for superficial skin issues such as sun spots and acne and skin texture. Used in combination with other treatments it can he helpful for other dark spots. The most likely issue you have is what is called postinflammatory hyperpigmentation form the cautery and this would be better treated by bleaching creams (prescription strength). Good luck and save the money on the peels and buy the cream.

Hello, Salicylic Acid peels are more like skin treatments or aids to other peeling agents. They work well to dry the skin up for acne control when used alone, but not for pigment or wrinkles.   Best Regards,   John Di Saia MD

In my practice, I use a salicylic acid and TCA peel that works well with melasma and pigmentation.  You may be a candidate for this peel if you have non-hormonal pigmentation. 

This is a mild peel, and when used in combination with bleaching agents an be effective. More than one treatment may be needed to see the desired results however.