Caro Light Lightening Oil has Hydroquinone 2% which is safe to use. It is a light weight oil with a great fragrance. It will quickly and effectively lighten, brighten and bleach your skin to the complexion you desire to achieve. You can also use this oil to get rid of hyper-pigmentation caused by acne, stretch marks, sunburn, age spots, scars. If your aim is just to get rid of marks and not bleach your skin, you should apply this oil to the areas you wish to get rid  of the hyperpigmentation. Always use sunscreen during the day . Apply twice daily.