Skin Darkening After Glycolic Peel

It's possible that either one or both of the treatments you had caused a darkening of the skin. This darkening is called hyperpigmentation and is a healing response to trauma. It may be that the chemical peel was too strong or that the wax you used was too harsh for your skin.
What you need to do now is just let your skin heal. For the next few weeks just use a gentle moisturizer, no more harsh treatments. Normally this type of pigment will resolve in a couple months. Stay out of the sun as well.

It sound like you developed post-inflammatory hyperpigmentation from either the chemical peel or the wax.  It is not recommended to use wax withing a week of doing a chemical peel on an area.  Avoid doing any other treatments until your skin is healed.  You may require the help of a bleaching agent such as hydroquinone depending on how severe the hyperpigmentation is.  I would recommend seeing a board-certified dermatologist.

Dina Strachan, MD   NYC dermatologist      212-627-1004

Thank you for your question.
It is possible to turn darker after a glycolic peel or other chemical peel in darker skinned patients. It is also possible that a hair removal cream may have irritated you, but that is usually preceded by redness and inflammation prior to the darkening.
At this point, avoid further peels or other procedures. As hard as it may seem to wait, this is your best option and the darkness will eventually fade - it nearly always does. To speed this fading up, ask you dermatologist for a bleaching cream to use once or twice daily, and practice strict sun avoidance.
Hope this helps!