Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern.. As per your complain it seems that you have Post inflammatory hyperpigmentation secondary to pimples which in your case seems to be due to hormonal imbalances post delivery.. As far as Calosoft is concerned it is a nourishing lotion containing Aloevera gel, Calamine and Paraffin and not depigmentation agent.. You can apply depigmentation creams containing Kojic Acid, Glycolic acid, arbutin, Vitamin E and C.. Azelaic acid creams can also help.. You can also exfoliate your skin twice a week with a mild face scrub.. Wash your face with depigmentation facewash like Salicylic acid and glycolic acid like AHA GLOW, Melaglow etc.. Limit sun exposure and always apply sunscreen lotion when exposed to sun.. You can also go for treatment like Photofacial, Microdermabrasion and chemical peeling.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.