I deal in only in 100% Authentic Products.... we offer the lowest prices because I am wholeseller. Your every purchase is guaranteed and comes with proper GST bill..... Negotiation would not be possible for that I am extremely sorry..... Prices low doesn't mean that products are not authenticated, Cosmetics industry do have the highest margin as per the survey you can check on Wikipedia. Some of the brand's I deal into are - Bellavita, Derma, Bombay shaving Company, Dot & Key, Himalaya, Brownskin Beauty, Plum, Engage, Herms, Creed, Wow Skin Science, Garnier, HRX, Aurena , MyGlamm, Bajaj, Mcaffiene, By Dose, Handaiyan etc. Get freebies + extra discount with your every combo purchases.