Why is it okay to expose skin to laser but not sunlight after hydroquinone?

Question

Hydroquinone decreases the amount of melanin in skin and creates photosensitivity. Thus if exposed to sunlight, it leads to inflammation and stimulates melanin production, which can make hyperpigmentation worse. However, I was suggested to use it as pre-treatment for Fraxel dual 1550. Doesn't laser have the same affect as sunlight? How come exposing to laser after hydroquinone will not cause inflammation, stimulate melanin production, make hyperpigmentation worse? What makes the difference?

Jason Emer, MD · Answer

everyone gets sensitive from hydroquinone whether so or laser. however, we pretreat the skin with hydroquinone specially cosmelan and enlighten peels (see link to emeragecosmetics.com where we do free skincare consults daily). you should always stay out of the sun regardless of products or laser.  Best, Dr. Emer.

Susan Fox, DO, RPVI · Answer

Hello, lasers are generally attracted to pigment.  This is why it is often recommended to pre-treat the skin with hydroquinone before doing laser for a more effective treatment.  Anytime, you are doing a laser treatment you need to stay out of the sun as you are more prone to hyper/hypo pigmentation post laser treatment.  If you are using hydroquinone to treat hyperpigmentation being in the sun would be counter productive as it will just continue to damage your skin.

Why is it okay to expose skin to laser but not sunlight after hydroquinone?

Answers (2)

More Skin Lightening Questions

Why is it okay to expose skin to laser but not sunlight after hydroquinone?

Answers (2)

More Skin Lightening Questions

How can I get rid of a dark spot between my eyebrows? (Photo)

My buttocks and inner thighs are way darker than the rest of my skin. Are there any ways to safely lighten these areas?

Is there a way to get rid of very tanned skin other than using sunscreen with high SPF?