Generally Chemical Peels work best for people who are not too dark skinned. Other than that, if the prospect has any of the following, they should rather avoid going for a chemical peel:
In case you are pregnant or have been nursing
Took Accutane within the past six months
Suffer from psoriasis, eczema, dermatitis or rosacea, cut or broken skin, sunburns or active Herpes simplex 1 sores.
Have used Retin-A, Renova, prescription skin care products containing ascorbic acid, bleaching or skin lightening agents or other acid based products within the past 48 hours